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Engine Control System (Service Information): ECM: Inspection: Procedure

  1. PCM 
    1. Without Using the techstream

      HINT: 

      Because the PCM uses a waterproof connector, the inspection for the voltage/wave pattern cannot be performed. The following values are for reference.

      Terminal voltage table (Reference) 

      GTY486858Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Terminal Signal Connected to Test condition Voltage
      (V)      		 inspection item
      C27-1*1 CAN2_H CAN system related modules Because this terminal is for CAN, integrity determination by terminal voltage is not possible.
      • Related wiring harness
      C27-31*1 CAN2_L CAN system related modules Because this terminal is for CAN, integrity determination by terminal voltage is not possible.
      • Related wiring harness
      C27-61 - - - - -
      C27-76 Knocking (-) KS Ignition switched ON (engine off) (Use digital type voltmeter, because measurement voltage will be detected less than true voltage when using analog type voltmeter) Approx. 1.64
      • KS
      • Related wiring harness
      C27-2 - - - - -
      C27-32 - - - - -
      C27-62 - - - - -
      C27-77 Knocking (+) KS Ignition switched ON (engine off) (Use digital type voltmeter, because measurement voltage will be detected less than true voltage when using analog type voltmeter) Approx. 3.28
      • KS
      • Related wiring harness
      C27-109 GND Sensor shield Under any condition Below 1.0
      • Related wiring harness
      C27-3 - - - - -
      C27-33*2 Neutral position Neutral switch Shift lever is at neutral position Below 1.0
      • Neutral switch
      • Related wiring harness
      Shift lever is not at neutral position B+
      C27-63*2 Back-up light Back-up light switch Shift lever is at R position Below 1.0
      • Back-up light switch
      • Related wiring harness
      Shift lever is not at R position B+
      C27-78 - - - - -
      C27-110 - - - - -
      C27-4 - - - - -
      C27-34 Oil pressure Oil pressure switch Ignition switched ON (engine off) Below 1.0
      • Oil pressure switch
      • Related wiring harness
      Idle (after warm up) B+
      C27-64 - - - - -
      C27-79 - - - - -
      C27-111 - - - - -
      C27-5 - - - - -
      C27-35 - - - - -
      C27-65 - - - - -
      C27-80 A/F A/F sensor Idle (after warm up) Approx. 4.18
      • A/F sensor
      • Related wiring harness
      C27-112 - - - - -
      C27-6 CMP CMP sensor (See CMP signal.)
      • CMP sensor
      • Related wiring harness
      C27-36 - - - - -
      C27-66 - - - - -
      C27-81 A/F A/F sensor Idle (after warm up): 0 mA
      • A/F sensor
      • Related wiring harness
      C27-113 GND CMP sensor Under any condition Below 1.0
      • Related wiring harness
      C27-7 CKP CKP sensor (See CKP signal.)
      • CKP sensor
      • Related wiring harness
      C27-37 - - - - -
      C27-67 Generator output voltage Generator (See Generator output voltage.)
      • Generator
      • Related wiring harness
      C27-82 A/F A/F sensor Idle (after warm up) Approx. 4.01
      • A/F sensor
      • Related wiring harness
      C27-114 GND CKP sensor Under any condition Below 1.0
      • Related wiring harness
      C27-8 Purge control Purge VSV (See Purge control.)
      • Purge VSV
      • Related wiring harness
      C27-38 IGT4 Ignition coil No. 4 (See IGT1, IGT2, IGT3, IGT4 control.)
      • Ignition coil No. 4
      • Related wiring harness
      C27-68 ECT (No. 1) ECT sensor No. 1 Ignition switched ON (engine off) ECT 20 °C
      (68 °F)      		 Approx. 3.10
      • ECT sensor No. 1
      • Related wiring harness
      ECT 40 °C
      (104 °F)      		 Approx. 2.16
      ECT 60 °C
      (140 °F)      		 Approx. 1.40
      ECT 80 °C
      (176 °F)      		 Approx. 0.87
      ECT 100 °C
      (212 °F)      		 Approx. 0.54
      C27-83 - - - - -
      C27-115 GND ECT sensor No. 1 Under any condition Below 1.0
      • Related wiring harness
      C27-9 VVT-i control OCV (See VVT-i control signal.)
      • OCV
      • Related wiring harness
      C27-39 IGT3 Ignition coil No. 3 (See IGT1, IGT2, IGT3, IGT4 control.)
      • Ignition coil No. 3
      • Related wiring harness
      C27-69 - - - - -
      C27-84 - - - - -
      C27-116 - - - - -
      C27-10 - - - - -
      C27-40 IGT2 Ignition coil No. 2 (See IGT1, IGT2, IGT3, IGT4 control.)
      • Ignition coil No. 2
      • Related wiring harness
      C27-70 - - - - -
      C27-85 - - - - -
      C27-117 - - - - -
      C27-11 - - - - -
      C27-41 IGT1 Ignition coil No. 1 (See IGT1, IGT2, IGT3, IGT4 control.)
      • Ignition coil No. 1
      • Related wiring harness
      C27-71 - - - - -
      C27-86 - - - - -
      C27-118 GND Sensor shield Under any condition Below 1.0
      • Related wiring harness
      C27-12 - - - - -
      C27-42 - - - - -
      C27-72 Generator field coil control Generator (See Generator field coil control signal.)
      • Generator
      • Related wiring harness
      C27-87 - - - - -
      C27-119 - - - - -
      C27-13 - - - - -
      C27-43 - - - - -
      C27-73 Constant voltage (Vref) Fuel pressure sensor Ignition switched ON (engine off) Approx. 5.02
      • Related wiring harness
      C27-88 - - - - -
      C27-120 GND Sensor shield Under any condition Below 1.0
      • Related wiring harness
      C27-14 - - - - -
      C27-44 Constant voltage (Vref) CKP sensor Ignition switched ON (engine off) Approx. 5.02
      • Related wiring harness
      C27-74 Constant voltage (Vref) MAP sensor Ignition switched ON (engine off) Approx. 5.02
      • Related wiring harness
      C27-89 TP (No. 1) TP sensor No. 1 Ignition switched ON (engine off) Accelerator pedal released Approx. 1.15
      • TP sensor No. 1
      • Related wiring harness
      Accelerator pedal fully depressed Approx. 4.63
      C27-121 GND TP sensor No. 1, TP sensor No. 2 Under any condition Below 1.0
      • Related wiring harness
      C27-15 - - - - -
      C27-45 Constant voltage (Vref) TP sensor No. 1, TP sensor No. 2 Ignition switched ON (engine off) Approx. 5.02
      • Related wiring harness
      C27-75 - - - - -
      C27-90 TP (No. 2) TP sensor No. 2 Ignition switched ON (engine off) Accelerator pedal released Approx. 3.95
      • TP sensor No. 2
      • Related wiring harness
      Accelerator pedal fully depressed Approx. 0.45
      C27-122 - - - - -
      C27-91 MAP MAP sensor Ignition switched ON (engine off) Approx. 4.15
      • MAP sensor
      • Related wiring harness
      Idle (after warm up) Approx. 1.96
      Racing (Engine speed: 2, 000 rpm) Approx. 1.33
      C27-123 GND MAP sensor, IAT sensor No. 2 Under any condition Below 1.0
      • Related wiring harness
      C27-16 A/F sensor heater control A/F sensor heater (See A/F sensor heater control signal.)
      • A/F sensor heater
      • Related wiring harness
      C27-46 GND GND Under any condition Below 1.0
      • Related wiring harness
      C27-92 Fuel pressure Fuel pressure sensor Ignition switched ON (engine off) Approx. 1.51
      • Fuel pressure sensor
      • Related wiring harness
      Idle (after warm up) Approx. 1.13
      C27-124 GND Fuel pressure sensor Under any condition Below 1.0
      • Related wiring harness
      C27-17 Drive-by-wire control (-) Throttle valve actuator Ignition switched ON (engine off) Approx. 11.23
      • Throttle valve actuator
      • Related wiring harness
      Idle (after warm up) B+
      C27-47 - - - - -
      C27-93 IAT (No. 2) IAT sensor No. 2 Ignition switched ON (engine off) IAT 20 °C
      (68 °F)      		 Approx. 3.57
      • IAT sensor No. 2
      • Related wiring harness
      IAT 40 °C
      (104 °F)      		 Approx. 2.70
      IAT 60 °C
      (140 °F)      		 Approx. 1.87
      C27-125 - - - - -
      C27-18 Drive-by-wire control (+) Throttle valve actuator (See Drive-by-wire control (+) signal.)
      • Throttle valve actuator
      • Related wiring harness
      C27-48 - - - - -
      C27-94 -   - - -
      C27-126 - - - - -
      C27-19 Battery voltage Main relay Ignition switched ON (engine off) B+
      • Related wiring harness
      C27-49 GND GND Under any condition Below 1.0
      • Related wiring harness
      C27-95 - - - - -
      C27-127 - - - - -
      C27-10 Battery voltage Fuel injector relay Ignition switched ON (engine off) B+
      • Related wiring harness
      C27-50 GND GND Under any condition Below 1.0
      • Related wiring harness
      C27-96 - - - - -
      C27-128 - - - - -
      C27-21 Battery voltage Fuel injector relay Ignition switched ON (engine off) B+
      • Related wiring harness
      C27-51 GND GND Under any condition Below 1.0
      • Related wiring harness
      C27-97 - - - - -
      C27-129 - - - - -
      C27-22 Battery voltage Fuel injector relay Ignition switched ON (engine off) B+
      • Related wiring harness
      C27-52 GND GND Under any condition Below 1.0
      • Related wiring harness
      C27-98 - - - - -
      C27-130 - - - - -
      C27-23 Battery voltage Fuel injector relay Ignition switched ON (engine off) B+
      • Related wiring harness
      C27-53 GND GND Under any condition Below 1.0
      • Related wiring harness
      C27-99 - - - - -
      C27-131 - - - - -
      C27-100 - - - - -
      C27-132 - - - - -
      C27-24 Battery voltage Fuel injector relay Ignition switched ON (engine off) B+
      • Related wiring harness
      C27-54 GND GND Under any condition Below 1.0
      • Related wiring harness
      C27-101 - - - - -
      C27-133 - - - - -
      C27-25 Battery voltage Fuel injector relay Ignition switched ON (engine off) B+
      • Related wiring harness
      C27-55 GND GND Under any condition Below 1.0
      • Related wiring harness
      C27-102 - - - - -
      C27-134 - - - - -
      C27-26 Fuel injection control (-) Fuel injector No. 1 (See Fuel injection control (-) signal.)
      • Fuel injector No. 1
      • Related wiring harness
      C27-56 Fuel injection control (+) Fuel injector No. 1 (See Fuel injection control (+) signal.)
      • Fuel injector No. 1
      • Related wiring harness
      C27-103 - - - - -
      C27-135 - - - - -
      C27-27 Fuel injection control (-) Fuel injector No. 4 (See Fuel injection control (-) signal.)
      • Fuel injector No. 4
      • Related wiring harness
      C27-57 Fuel injection control (+) Fuel injector No. 4 (See Fuel injection control (+) signal.)
      • Fuel injector No. 4
      • Related wiring harness
      C27-104 - - - - -
      C27-136 - - - - -
      C27-28 Fuel injection control (-) Fuel injector No. 2 (See Fuel injection control (-) signal.)
      • Fuel injector No. 2
      • Related wiring harness
      C27-58 Fuel injection control (+) Fuel injector No. 2 (See Fuel injection control (+) signal.)
      • Fuel injector No. 2
      • Related wiring harness
      C27-105 - - - - -
      C27-137 - - - -  
      C27-29 Fuel injection control (-) Fuel injector No. 3 (See Fuel injection control (-) signal.)
      • Fuel injector No. 3
      • Related wiring harness
      C27-59 Fuel injection control (+) Fuel injector No. 3 (See Fuel injection control (+) signal.)
      • Fuel injector No. 3
      • Related wiring harness
      C27-106 - - - - -
      C27-138 - - - - -
      C27-30 High pressure fuel pump control (+) High pressure fuel pump (See High pressure fuel pump control (+) signal.)
      • High pressure fuel pump
      • Related wiring harness
      C27-60 High pressure fuel pump control (-) High pressure fuel pump (See High pressure fuel pump control (-) signal.)
      • High pressure fuel pump
      • Related wiring harness
      C27-107 - - - - -
      C27-139 - - - - -
      C27-108 - - - - -
      C27-140 - - - - -
      A42-32 - - - - -
      A42-47 - - - - -
      A42-1 HO2S heater control HO2S heater (See HO2S heater control signal.)
      • HO2S heater
      • Related wiring harness
      A42-14 - - - - -
      A42-33 - - - - -
      A42-48 ECT (No. 2) ECT sensor No. 2 Ignition switched ON (engine off) ECT 20 °C
      (68 °F)      		 Approx. 3.10
      • ECT sensor No. 2
      • Related wiring harness
      ECT 40 °C
      (104 °F)      		 Approx. 2.16
      ECT 60 °C
      (140 °F)      		 Approx. 1.40
      ECT 80 °C
      (176 °F)      		 Approx. 0.87
      ECT 100 °C
      (212 °F)      		 Approx. 0.54
      A42-2 Brake (No. 1) Brake switch (No. 1 signal) Brake pedal released Below 1.0
      • Brake switch (No. 1 signal)
      • Related wiring harness
      Brake pedal fully depressed B+
      A42-15 Ignition (IG1) IG1 relay Ignition switched ON (engine off) B+
      • IG1 relay
      • Related wiring harness
      A42-34 Ambient temperature Ambient temperature sensor Ignition switched ON (engine off) AAT 20 °C
      (68 °F)      		 Approx. 2.70
      • Ambient temperature sensor
      • Related wiring harness
      AAT 30 °C
      (104 °F)      		 Approx. 1.80
      A42-49*2 CPP CPP switch, engine stop and start ECU Clutch pedal fully depressed Below 1.0
      • CPP switch
      • Engine stop and start ECU
      • Related wiring harness
      Clutch pedal released B+
      A42-3 Main relay control Main relay Ignition switched ON (engine off) Approx. 0.83
      • Main relay
      • Related wiring harness
      A42-16 - - - - -
      A42-35 - - - - -
      A42-50 - - - - -
      A42-4 Battery voltage Battery Under any condition B+
      • Battery
      • Related wiring harness
      A42-17 - - - - -
      A42-36 - - - - -
      A42-51 Brake (No. 2) Brake switch (No. 2 signal) Brake pedal released Below 1.0
      • Brake switch (No. 2 signal)
      • Related wiring harness
      Brake pedal fully depressed B+
      A42-5 Battery voltage Main relay Ignition switched ON (engine off) B+
      • Related wiring harness
      A42-18 Battery voltage Main relay Ignition switched ON (engine off) B+
      • Related wiring harness
      A42-37 IAT (No. 1) IAT sensor No. 1 Ignition switched ON (engine off) IAT 20 °C
      (68 °F)      		 Approx. 2.64
      • IAT sensor No. 1
      • Related wiring harness
      IAT 40 °C
      (104 °F)      		 Approx. 1.27
      IAT 60 °C
      (140 °F)      		 Approx. 0.66
      A42-52 - - - - -
      A42-6 - - - - -
      A42-19 - - - - -
      A42-38 Fuel tank pressure Fuel tank pressure sensor Fuel tank pressure is 10 kPa (0.10 kgf/cm2 , 1.5 psi) lower than barometric pressure. Approx. 1.2
      • Fuel tank pressure sensor
      • Related wiring harness
      Fuel tank pressure is equal to barometric pressure. Approx. 2.6
      Fuel tank pressure is 6 kPa (0.06 kgf/cm2 , 0.9 psi) higher than barometric pressure. Approx. 3.7
      A42-53 - - - - -
      A42-7 GND GND Under any condition Below 1.0
      • Related wiring harness
      A42-20 - - - - -
      A42-39 - - - - -
      A42-54 GND Sensor shield Under any condition Below 1.0
      • Related wiring harness
      A42-8 - - - - -
      A42-21 A/C cut-off control A/C relay A/C relay OFF B+
      • A/C relay
      • Related wiring harness
      A/C relay ON Below 1.0
      A42-40 HO2S (-) HO2S Idle (after warm up) Approx. 1.63
      • HO2S
      • Related wiring harness
      A42-55 - - - - -
      A42-41 HO2S (+) HO2S Idle (after warm up) Approx. 2.35
      • HO2S
      • Related wiring harness
      A42-56 GND Ambient temperature sensor, refrigerant pressure sensor, fuel tank pressure sensor, ECT sensor No. 2 Under any condition Below 1.0
      • Related wiring harness
      A42-9 HS CAN_H CAN system related modules Because this terminal is for CAN, integrity determination by terminal voltage is not possible.
      • Related wiring harness
      A42-22 HS CAN_L CAN system related modules Because this terminal is for CAN, integrity determination by terminal voltage is not possible.
      • Related wiring harness
      A42-27 - - - - -
      A42-42 APP (No. 1) APP sensor No. 1 Ignition switched ON (engine off) Accelerator pedal released Approx. 0.82
      • APP sensor No. 1
      • Related wiring harness
      Accelerator pedal fully depressed Approx. 4.58
      A42-57 GND APP sensor No. 1 Under any condition Below 1.0
      • Related wiring harness
      A42-10 - - - - -
      A42-23 Fuel pump control Fuel pump relay Ignition switched ON (engine off) B+
      • Fuel pump relay
      • Related wiring harness
      Idle (after warm up) Below 1.0
      A42-28 Constant voltage (Vref) APP sensor No. 1 Ignition switched ON (engine off) Approx. 5.02
      • Related wiring harness
      A42-43 APP (No. 2) APP sensor No. 2 Ignition switched ON (engine off) Accelerator pedal released Approx. 0.42
      • APP sensor No. 2
      • Related wiring harness
      Accelerator pedal fully depressed Approx. 2.30
      A42-58 GND APP sensor No. 2 Under any condition Below 1.0
      • Related wiring harness
      A42-11 Cooling fan control Cooling fan relay No. 2 Cooling fan operating Below 1.0
      • Cooling fan relay No. 2
      • Related wiring harness
      Cooling fan not operating B+
      A42-24 Cooling fan control Cooling fan relay No. 1 Cooling fan operating Below 1.0
      • Cooling fan relay No. 1
      • Related wiring harness
      Cooling fan not operating B+
      A42-29 Constant voltage (Vref) APP sensor No. 2 Ignition switched ON (engine off) Approx. 5.02
      • Related wiring harness
      A42-44 Refrigerant pressure Refrigerant pressure sensor Refrigerant pressure: 1.0 MPa (10 kgf/cm2 , 145 psi) Approx. 1.58
      • Refrigerant pressure sensor
      • Related wiring harness
      Refrigerant pressure: 1.1 MPa (11 kgf/cm2 , 160 psi) Approx. 1.72
      Refrigerant pressure: 1.2 MPa (12 kgf/cm2 , 174 psi) Approx. 1.88
      A42-59 GND MAF sensor, IAT sensor No. 1 Under any condition Below 1.0
      • Related wiring harness
      A42-12 Starter cut-off control Starter relay, engine stop and start ECU Ignition switched ON (engine off) MTX 
      • Clutch pedal released

      ATX 
      • Selector lever position is not P or N position
      		 B+
      • Starter relay
      • Engine stop and start ECU
      • Related wiring harness
      MTX 
      • Clutch pedal released

      ATX 
      • Selector lever position is P or N position
      		 Below 1.0
      A42-25 - - - - -
      A42-30 Constant voltage (Vref) Refrigerant pressure sensor, MAF sensor Ignition switched ON (engine off) Approx. 5.02
      • Related wiring harness
      A42-45 MAF MAF sensor Ignition switched ON (engine off) Approx. 0.76
      • MAF sensor
      • Related wiring harness
      Idle (after warm up) Approx. 1.12
      Racing
      (Engine speed: 2, 000 rpm)      		 Approx. 1.44
      A42-60 Selector lever position*1 TCM, engine stop and start ECU Selector lever position is not P or N position B+
      • TCM
      • Engine stop and start ECU
      • Related wiring harness
      Selector lever position is P or N position Below 1.0
      Starter interlock*2 Clutch start switch, engine stop and start ECU Clutch pedal fully depressed Below 1.0
      • Clutch start switch
      • Engine stop and start ECU
      • Related wiring harness
      Clutch pedal released B+
      A42-13 - - - - -
      A42-26 CV solenoid control CV solenoid valve Ignition switched ON (engine off) B+
      • CV solenoid valve
      • Related wiring harness
      Idle (CV solenoid valve not operating) B+
      Idle (CV solenoid valve operating) Below 1.0
      A42-31 - - - - -
      A42-46 - - - - -

      *1: ATX

      *2: MTX

    2. Inspection Using An Oscilloscope (Reference)
      1. CMP signal
        • PCM terminals:

          C27-6 (+) - body ground (-)

        • Oscilloscope setting:

          2 V/DIV (Y), 20 ms/DIV (X), DC range

        • Vehicle condition:

          Idle (after warm up)

        GTY486769Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. CKP signal
        • PCM terminals:

          C27-7 (+) - body ground (-)

        • Oscilloscope setting:

          2 V/DIV (Y), 1 ms/DIV (X), DC range

        • Vehicle condition:

          Idle (after warm up)

        GTY485685Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Generator output voltage
        • PCM terminals

          C27-67 (+) - body ground (-)

        • Oscilloscope setting

          5 V/DIV (Y), 2 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY492468Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Purge control
        • PCM terminals

          C27-8 (+) - body ground (-)

        • Oscilloscope setting

          10 V/DIV (Y), 50 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY488408Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. IGT1, IGT2, IGT3, IGT4 control
        • PCM terminals

          IGT1 (ignition coil No. 1): C27-41 (+) - body ground (-)

          IGT2 (ignition coil No. 2): C27-40 (+) - body ground (-)

          IGT3 (ignition coil No. 3): C27-39 (+) - body ground (-)

          IGT4 (ignition coil No. 4): C27-38 (+) - body ground (-)

        • Oscilloscope setting

          2 V/DIV (Y), 50 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY491177Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      6. VVT-i control signal
        • PCM terminals

          C27-9 (+) - body ground (-)

        • Oscilloscope setting

          5 V/DIV (Y), 1 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY484519Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      7. Generator field coil control signal
        • PCM terminals

          C27-72 (+) - body ground (-)

        • Oscilloscope setting

          1 V/DIV (Y), 2 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY493341Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      8. A/F sensor heater control signal
        • PCM terminals

          C27-16 (+) - body ground (-)

        • Oscilloscope setting

          5 V/DIV (Y), 50 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY485214Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      9. Drive-by-wire control (+) signal
        • PCM terminals

          C27-18 (+) - body ground (-)

        • Oscilloscope setting

          5 V/DIV (Y), 1 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY485947Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      10. Fuel injection control (-) signal
        • PCM terminals

          Fuel Injection No. 1: C27-26 (+) - body ground (-)

          Fuel Injection No. 2: C27-28 (+) - body ground (-)

          Fuel Injection No. 3: C27-29 (+) - body ground (-)

          Fuel Injection No. 4: C27-27 (+) - body ground (-)

        • Oscilloscope setting

          10 V/DIV (Y), 5 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY494221Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      11. Fuel injection control (+) signal
        • PCM terminals

          Fuel Injection No. 1: C27-56 (+) - body ground (-)

          Fuel Injection No. 2: C27-58 (+) - body ground (-)

          Fuel Injection No. 3: C27-59 (+) - body ground (-)

          Fuel Injection No. 4: C27-57 (+) - body ground (-)

        • Oscilloscope setting

          10 V/DIV (Y), 5 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY489876Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      12. High pressure fuel pump control (+) signal
        • PCM terminals

          C27-30 (+) - body ground (-)

        • Oscilloscope setting

          10 V/DIV (Y), 5 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY487292Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      13. High pressure fuel pump control (-) signal
        • PCM terminals

          C27-60 (+) - body ground (-)

        • Oscilloscope setting

          10 V/DIV (Y), 5 ms/DIV (X), DC range

        • Vehicle condition

          Idle after warm up

        GTY491655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      14. HO2S heater control signal
        • PCM terminals

          A42-1 (+) - body ground (-)

        • Oscilloscope setting

          5 V/DIV (Y), 50 ms/DIV (X), DC range

        • Vehicle condition

          Idle (immediately after starting engine)

        GTY492001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using The techstream

      HINT: 

      PIDs for the following parts are not available on this model. Go to the appropriate part inspection information.

      1. Connect the techstream to the DLC-2.
      2. Switch the ignition ON (engine off).
      3. Measure the PID value.

        If PID value is not within the specification, follow the instructions in action column.

        HINT: 

        • The PID/DATA MONITOR function monitors the calculated value of the input/output signals in the PCM. Therefore, an output device malfunction is not directly indicated as a malfunction of the monitored value for the output device. If a monitored value of an output device is out of specification, inspect the monitored value of the input device related to the output control.
        • The simulation items that are used in the engine control system operation inspection are as follows.
          • ACCS, ARPMDES, EVAPCP, EVAPCV, FAN1, FAN3, FP, INJ_1, INJ_2, INJ_3, INJ_4, VT_EX_DES
        Item
        (definition)        		 Unit/
        Condition        		 Definition Value type Condition/Specification (Reference) PCM
        terminal
        Ambient Air Temperature °C Ambient air temperature - Displays ambient air temperature A42-34
        A/C pressure sensor kPa Refrigerant pressure input from refrigerant pressure sensor Calculation Displays refrigerant pressure A42-44
        V Refrigerant pressure sensor voltage Input
        • Refrigerant pressure is 449 kPa (4.58 kgf/cm2 , 65.1 psi): Approx. 0.76 V
        • Refrigerant pressure is 729 kPa (7.43 kgf/cm2 , 106 psi): Approx. 1.18 V
        A/C Request Signal - A/C switch status received by PCM via CAN Input
        • A/C switch off: Off
        • A/C switch on: On
        		 CAN
        (A42-9, A42-22)
        Air conditioning compressor cycling switch - A/C relay status input from A/C relay Input
        • A/C relay off: Off
        • A/C relay on: On
        		 A42-21
        Generator field current control duty signal % Field coil current control signal output to generator Calculation
        • Ignition switched ON (engine off): 0%
        • Idle: Approx. 41 to 54%
        • Racing (Engine speed is 2, 000 rpm): Approx. 24 to 34%
        		 C27-72
        Generator field current control duty signal Actual % Actually measured value of field coil current signal input from generator Calculation Displays actual generator field current control duty value -
        Generator output voltage V Generator output voltage Input Idle (no E/L): Approx. 14 V (This is internal calculation value and differs from terminal voltage) C27-67
        Ambient air temperature °C Actually measured ambient temperature input from ambient temperature sensor Calculation Displays ambient air temperature A42-34
        Accelerator Pedal Position % Accelerator pedal opening angle (relative value) with the fully released status as 0% and fully depressed status as 100% Calculation
        • Accelerator pedal released: Approx. 0%
        • Accelerator pedal fully depressed: Approx. 100%
        		 -
        Accelerator pedal position sensor 1 % Accelerator pedal opening angle (absolute value) input from APP sensor No. 1 Calculation
        • Accelerator pedal released: Approx. 16%
        • Accelerator pedal fully depressed: Approx. 91%
        		 A42-42
        V APP sensor No. 1 voltage Input
        • Accelerator pedal released: Approx. 0.78 V
        • Accelerator pedal fully depressed: Approx. 4.54 V
        Accelerator pedal position sensor 2 % Accelerator pedal opening angle (absolute value) input from APP sensor No. 2 Calculation
        • Accelerator pedal released: Approx. 7.84%
        • Accelerator pedal fully depressed: Approx. 45.49%
        		 A42-43
        V APP sensor No. 2 voltage Input
        • Accelerator pedal released: Approx. 0.39 V
        • Accelerator pedal fully depressed: Approx. 2.27 V
        Desired RPM RPM Target engine speed Calculation Displays target engine speed -
        Barometric pressure kPa Actually measured barometric pressure input from barometric pressure sensor built into PCM Calculation Displays BARO -
        Brake Switch 1 Input Signal Status: Footbrake Is Applied High / Not Applied Low - Brake switch (No. 1 signal) input status Calculation
        • Brake pedal released: Low
        • Brake pedal fully depressed: High
        		 A42-2
        Brake Switch 2 Input Signal Status: Footbrake Is Applied High / Not Applied Low - Brake switch (No. 2 signal) input status Calculation
        • Brake pedal released: Low
        • Brake pedal fully depressed: High
        		 A42-51
        Desired Catalyst Temperature Bank One, Sensor One °C Estimated catalytic converter temperature Calculation
        • Displays estimated catalytic converter temperature

          Idle (after warm up) 

          • ECT is 88 °C (190 °F): Approx.304 °C (579 °F)
        		 -
        Generator Warning Light - Charging system warning light illumination status Calculation
        • Charging system warning light not illuminated: Off
        • Charging system warning light illuminated: On
        		 -
        Clutch Pedal Position*2 % Clutch pedal position Calculation
        • Clutch pedal released: Off
        • Clutch pedal fully depressed: On
        		 A42-49
        Parking/Neutral Switch*2 - Shift lever position Calculation
        • Other than neutral: Off
        • Neutral: On
        		 C27-33
        Engine coolant temperature °C Engine coolant temperature input from ECT sensor No. 1 Calculation Displays ECT C27-68
        V ECT sensor No. 1 voltage Input Ignition switched ON (engine off) 
        • ECT is 29 °C (84 °F): Approx. 2.65 V

        Idle (after warm up) 
        • ECT is 88 °C (190 °F): Approx. 0.71 V
        Engine Coolant Temperature 2 - Voltage V ECT sensor No. 2 voltage Input Ignition switched ON (engine off) 
        • ECT is 29 °C (84 °F): Approx. 2.65 V

        Idle (after warm up) 
        • ECT is 88 °C (190 °F): Approx. 0.71 V
        		 A42-48
        Equivalence Ratio (Lambda) (Bank 1, Sensor 1) - Excess air factor (estimated value) to theoretical air/fuel ratio (14.7) by fuel feedback control Calculation Idle (after warm up) 
        • ECT is 89 °C (192 °F): Approx. 1
        		 -
        Desired Equivalence Ratio (Lambda) - Target excess air factor (estimated value) to theoretical air/fuel ratio (14.7) by fuel feedback control Calculation Indicate target lambda (Excess air factor = supplied air amount /theoretical air/fuel ratio) -
        Electronic Throttle Control Actual deg Actual throttle valve opening angle Calculation Ignition switched ON (engine off) 
        • Accelerator pedal released: Approx. 12.89 °
        • Accelerator pedal fully depressed: Approx. 86.03 °

        Idle (after warm up) 
        • Accelerator pedal released: Approx. 2.77 to 2.84 ° (ECT is 89 °C (192 °F))
        		 -
        Electronic Throttle Control Desired deg Target throttle valve opening angle Calculation
        • Displays target TP opening angle

          Ignition switched ON (engine off) 

          • Accelerator pedal released: Approx. 12.9 °
          • Accelerator pedal fully depressed: Approx. 86 °
        		 -
        % Target throttle valve opening angle (percent) Calculation
        • Displays target TP opening angle (percent)

          Ignition switched ON (engine off) 

          • Accelerator pedal released: Approx. 14.9 °
          • Accelerator pedal fully depressed: Approx. 100%
        Evap Emission Canister Purge Valve duty cycle % Purge VSV control duty value Calculation
        • Idle (after warm up): 0%
        • Racing (Engine speed 2, 000 rpm): 33 to 35% (ECT is 94 °C (201 °F))
        • Racing (Engine speed 4, 000 rpm): 53 to 55% (ECT is 94 °C (201 °F))
        		 C27-8
        Evaporative Emission Canister Vent Valve - CV solenoid valve operation status Calculation Simulation item (EVAPCV) is ON: On A42-26
        FAN1 Control Signal - Cooling fan relay No. 2 operation status Calculation
        • Cooling fan relay No. 2 off: Off
        • Cooling fan relay No. 2 on: On
        		 A42-11
        FAN3 Control Signal - Cooling fan relay No. 1 operation status Calculation
        • Cooling fan relay No. 1 off: Off
        • Cooling fan relay No. 1 on: On
        		 A42-24
        Fuel Cap Warning Light - Check fuel cap warning light illumination status Calculation
        • Check fuel cap warning light not illuminated: Off
        • Check fuel cap warning light illuminated: On
        		 -
        Fuel Injection Amount [mg/cylinder] - Fuel injection amount Calculation
        • Displays fuel injection amount

          Idle (after warm up) 

          • ECT is 90 °C (194 °F): Approx. 6
        		 -
        Fuel Level % Fuel level Calculation
        • Fuel gauge level F: Approx. 100%
        • Fuel gauge level E: Approx. 0%
        		 CAN
        (A42-9, A42-22)
        Fuel pump - Fuel pump relay operation status Calculation
        • Ignition switched ON (engine off): Off
        • Cranking: On
        • Idle (after warm up): On
        		 A42-23
        Fuel Pump Duty Cycle % Displays in the techstream but it does not operate.
        Fuel Tank Pressure kPa Fuel tank pressure Calculation Displays fuel tank pressure A42-38
        Fuel Tank Pressure Transducer V Fuel tank pressure sensor voltage Input Fuel tank pressure is equal to barometric pressure: Approx. 2.6 V
        Fuel Pressure Desired kPa Target fuel pressure (high pressure fuel pump) Calculation
        • Displays target fuel pressure (high pressure fuel pump)

          Ignition switched ON (engine off) 

          • Fuel pressure: Approx. 12 MPa (122 kgf/cm2 , 1740 psi)

          Idle (after warm up) 

          • ECT is 91 °C (196 °F): Fuel pressure is 3.3 to 3.8 MPa (34 to 38 kgf/cm2 , 479 to 551 psi)
        		 -
        Fuel pressure sensor kPa Fuel pressure input from fuel pressure sensor Calculation Displays fuel pressure C27-92
        V Fuel pressure sensor voltage Input Ignition switched ON (engine off) 
        • Fuel pressure is approx. 16.91 MPa (172.4 kgf/cm2 , 2453 psi): Approx. 2.91 V

        Idle (after warm up) 
        • Fuel pressure is 3.44 to 3.95 MPa (35.1 to 40.2 kgf/cm2 , 499 to 572 psi): 0.98 to 1.05 V (ECT is 90 °C (194 °F))
        Fuel Pulse Width ms Fuel injection pulse width (fuel injector energization time) output to fuel injector Calculation
        • Idle (after warm up): Approx. 1.71 ms
        • Racing (engine speed is 2, 000 rpm): Approx. 1.35 ms
        • Racing (engine speed is 4, 000 rpm): Approx. 1.21 ms
        		 No. 1: C27-26 / C27-56
        No. 2: C27-28 / C27-58
        No. 3: C27-29 / C27-59
        No. 4: C27-27 / C27-57
        Fuel System Status (Open/Closed Loop) - Feedback status of fuel injection control is displayed
        OL: Feedback control is disabled at cold engine start
        CL: During feedback control by A/F sensor and HO2S
        OL_Drive: While feedback control is stopped
        OL_Fault: Feedback control is disable due to system malfunction
        CL_Fault: During feedback control with either A/F sensor or HO2S having a malfunction        		 Calculation
        • Idle (after warm up): OL or CL
        • Racing (engine speed is 2, 000 rpm): CL
        • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 rpm or more): OL-Drive
        		 -
        Transmission Gear Engaged*1 - Gear commanded Calculation
        • Selector lever at P position: Park
        • Selector lever at R position: Reverse
        • Selector lever at N position: Neutral
        • Selector lever is in D or M position while vehicle is stopped: 1st
        		 CAN
        (A42-9, A42-22)
        Heated Exhaust Gas Oxygen Sensor Heater (bank 1, sensor 1) - A/F sensor heater operation status Calculation
        • Ignition switched ON (engine off):Off
        • Idle (after warm up): On
        		 C27-16
        % A/F sensor heater control duty value Calculation
        • Ignition switched ON (engine off): 0%
        • Idle (after warm up): 32 to 34%
        Heated Exhaust Gas Oxygen Sensor Heater (bank 1, sensor 2) - HO2S heater operation status Calculation
        • Ignition switched ON (engine off):Off
        • Idle (after warm up): On
        		 A42-1
        % HO2S heater control duty value Calculation
        • Ignition switched ON (engine off): 0%
        • Idle (after warm up): 41 to 48%
        Intake Air Temperature °C Intake air temperature (No. 1) input from IAT sensor No. 1 Calculation Displays IAT (No. 1) A42-37
        V IAT sensor No. 1 voltage Input
        • IAT is 20 °C (68 °F): Approx. 2.70 V
        • IAT is 40 °C (104 °F): Approx. 1.80 V
        • IAT is 60 °C (140 °F): Approx. 2.70 V
        Intake Air Temperature 2 V IAT sensor No. 2 voltage Input
        • IAT2 is 20 °C (68 °F): Approx. 3.57 V
        • IAT2 is 40 °C (104 °F): Approx. 2.70 V
        • IAT2 is 60 °C (140 °F): Approx. 1.87 V
        		 C27-93
        In gear - Gears are engaged Calculation MTX 
        • When the following conditions are satisfied: On
          • Other than neutral
          • Clutch pedal released
        • Except above: Off

        ATX 
        • Selector lever is in R, D, or M position: On
        • Except above: Off
        		 CAN
        (A42-9, A42-22)
        ISC Feedback % ISC feedback value Calculation Displays ISC feedback value -
        ISC Feedback (Learned) % Learning value for calculating ISC feedback amount Calculation Displays ISC feedback learning value -
        Idle Validation Switch - Idle flag Calculation
        • Racing: Off Idle
        • Idle: Idle
        		 -
        Knocking Retard deg Camshaft retard amount when knocking determined Calculation
        • Ignition switched ON (engine off): 0 °
        • Idle (after warm up): 0 °
        		 -
        Engine load % Ratio of actual amount of intake air to the maximum air charging amount (mass volume) of cylinder Calculation
        • Idle (after warm up): Approx. 22.35%
        • Racing (engine speed is 2, 000 rpm): Approx. 17.25%
        • Racing (engine speed is 4, 000 rpm): Approx. 19.21%
        		 -
        Long term fuel trim 1 % Fuel learning correction amount estimated based on A/F sensor signal Calculation
        • Idle (after warm up): Approx. -6.25%
        • Racing (engine speed is 2, 000 rpm): Approx. -3.9%
        • Racing (engine speed is 4, 000 rpm): Approx. -3.9%
        		 -
        Long Term Fuel Trim (Bank 1, Sensor 2) % Fuel learning correction amount estimated based on HO2S signal Calculation Idle (after warm up): 0% -
        Low Oil Pressure (Switch) - Engine oil pressure condition
        • Never Detected: Engine oil pressure is high
        • Detected: Engine oil pressure is low
        		 Calculation
        • Ignition switched ON (engine off): Detected
        • Idle (after warm up): Detected
        • Racing (engine speed is 2, 000 to 4, 000 rpm): Never Detected
        		 C27-34
        KCS Learning Value - Knock control system learning value Calculation Displays knock control system learning value -
        Manual Gear Position - Calculated*2 - Manual gear position Calculation Displays manual gear position CAN
        (A42-9, A42-22)
        Mass Air Flow gm/sec Mass air flow input from MAF sensor Calculation Displays MAF A42-45
        V MAF sensor voltage Input
        • Ignition switched ON (engine off) (MAF: 0.59 g/s (0.078 lb/min)): Approx. 0.72 V
        • Idle (after warm up) (MAF: 2.17 g/s (0.287 lb/min)): Approx. 0.97 V
        • Racing (engine speed is 2, 000 rpm) (MAF: 4.73 g/s (0.626 lb/min)): Approx. 1.26 V
        Manifold absolute pressure sensor kPa Manifold absolute pressure input from MAP sensor Calculation Displays MAP C27-91
        V MAP sensor voltage Input
        • Ignition switched ON (engine off) (MAP:101 kPa (1.03 kgf/cm2 , 14.6 psi)): Approx. 4.12 V
        • Idle (after warm up) (MAP: 33 kPa (0.34 kgf/cm2 , 4.8 psi)): Approx. 1.9 V
        • Racing (engine speed is 2, 000 rpm) (MAP: 26 kPa (0.27 kgf/cm2 , 3.8 psi)): Approx. 1.23 V
        Cylinder 1 Misfire Counts For Catalyst Damage - Number of misfires in No. 1 cylinder leading to catalytic converter temperature increase (catalytic converter temperature increases due to fuel combustion around catalytic converter after misfire) Calculation Displays number of misfires corresponding to possible catalytic converter damage (No. 1 cylinder) -
        Cylinder 2 Misfire Counts For Catalyst Damage - Number of misfires in No. 2 cylinder leading to catalytic converter temperature increase (catalytic converter temperature increases due to fuel combustion around catalytic converter after misfire) Calculation Displays number of misfires corresponding to possible catalytic converter damage (No. 2 cylinder) -
        Cylinder 3 Misfire Counts For Catalyst Damage - Number of misfires in No. 3 cylinder leading to catalytic converter temperature increase (catalytic converter temperature increases due to fuel combustion around catalytic converter after misfire) Calculation Displays number of misfires corresponding to possible catalytic converter damage (No. 3 cylinder) -
        Cylinder 4 Misfire Counts For Catalyst Damage - Number of misfires in No. 4 cylinder leading to catalytic converter temperature increase (catalytic converter temperature increases due to fuel combustion around catalytic converter after misfire) Calculation Displays number of misfires corresponding to possible catalytic converter damage (No. 4 cylinder) -
        Firing Cycle Counter (Catalyst) - Threshold of malfunction determination for number of misfires (total number in all cylinders) leading to catalytic converter temperature increase Calculation Displays number of misfire determinations (for catalytic converter) -
        Total Misfire Counts For Catalyst Damage During This Trip - Number of misfires (total number in all cylinders) leading to catalytic converter temperature increase Calculation Displays number of misfires corresponding to possible catalytic converter damage (total) -
        Cylinder 1 Misfire Counts For Emissions Failure - Number of misfires in No. 1 cylinder under conditions required by emission regulations Calculation Displays number of misfires possibly affecting emission (No. 1 cylinder) -
        Cylinder 2 Misfire Counts For Emissions Failure - Number of misfires in No. 2 cylinder under conditions required by emission regulations Calculation Displays number of misfires possibly affecting emission (No. 2 cylinder) -
        Cylinder 3 Misfire Counts For Emissions Failure - Number of misfires in No. 3 cylinder under conditions required by emission regulations Calculation Displays number of misfires possibly affecting emission (No. 3 cylinder) -
        Cylinder 4 Misfire Counts For Emissions Failure - Number of misfires in No. 4 cylinder under conditions required by emission regulations Calculation Displays number of misfires possibly affecting emission (No. 4 cylinder) -
        Firing Cycle Counter (Emissions) - Threshold of malfunction determination for number of misfires (total number in all cylinders) under conditions required by emission regulations Calculation Displays number of misfire determinations (for emission) -
        Total Misfire Counts For Emissions Failure During This Trip - Number of misfires (total number in all cylinders) under conditions required by emission regulations Calculation Displays number of misfires possibly affecting emission (total) -
        Malfunction Indicator Lamp - Check engine light illumination status Calculation
        • Check engine light not illuminated: Off
        • Check engine light illuminated: On
        		 -
        The distance travelled since the MIL was activated. Km Travelled distance since check engine light illuminated Calculation Displays travelled distance since check engine light illuminated -
        Heated Exhaust Gas Oxygen Sensor (bank 1, sensor 1) uA A/F sensor current Input
        • Idle (after warm up): 0 to 50 μA
        • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 rpm or more): Approx. 3.84 mA
        		 C27-81
        Heated Exhaust Gas Oxygen Sensor (bank 1, sensor 2) V HO2S voltage Input
        • Idle (after warm up): 0 to 1.0 V
        • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 rpm or more): Approx. 0 V
        		 A42-41 / A42-40
        Oil Pressure Solenoid Valve - Displays in the techstream but it does not operate.
        Engine Oil Temperature - Estimated °C Estimated engine oil temperature Calculation Displays estimated engine oil temperature -
        Parking/Neutral Switch*1 - Parking/neutral Calculation
        • Selector lever at P position or N position: Closed
        • Except above: Open
        		 CAN
        (A42-9, A42-22)
        Rear O2 Fuel Trim - Bank 1 % Fuel correction amount based on HO2S signal including SHRTFT12 and LONGFT12 Calculation
        • Idle (after warm up): Approx. 0%
        • Deceleration fuel cut (accelerator pedal released from engine speed of 4, 000 rpm or more): Approx. 3.99%
        		 -
        Engine Revolutions Per Minute RPM Engine speed Calculation Displays engine speed C27-7
        Short term fuel trim 1 % Fuel feedback correction amount estimated based on A/F sensor signal Calculation
        • Idle (after warm up): Approx. 0%
        • Racing (engine speed is 2, 000rpm): Approx. 1.56%
        • Racing (engine speed is 4, 000 rpm): Approx. -4.68%
        		 -
        Short Term Fuel Trim (Bank 1, Sensor 2) % Fuel feedback correction amount estimated based on HO2S signal Calculation Idle (after warm up): 0% -
        Spark Advance deg Ignition timing Calculation Displays ignition timing -
        Thermostat Monitor Heat Radiation Ratio - Thermostat monitor Calculation Indicates heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) when thermostat monitoring is finished -
        Thermostat Monitor Heat Radiation Ratio Max Limit - Thermostat monitor max Calculation Indicates upper limit of heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) for thermostat monitoring execution -
        Thermostat Monitor Heat Radiation Ratio Min Limit - Thermostat monitor min Calculation Indicates lower limit of heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) for thermostat monitoring execution -
        Relative Throttle Position % Throttle valve opening angle (relative value) with value at throttle valve fully close timing as the start point Calculation
        • Accelerator pedal released: Approx. 12%
        • Accelerator pedal fully depressed: Approx. 82%
        		 -
        Throttle Position Sensor 1 % Throttle valve position No. 1 Calculation
        • Accelerator pedal released: Approx. 22%
        • Accelerator pedal fully depressed: Approx. 92%
        		 C27-89
        V TP sensor No. 1 voltage Input
        • Accelerator pedal released: Approx. 1.11 V
        • Accelerator pedal fully depressed: Approx. 4.59 V
        Throttle Position Sensor 2 % Throttle valve position No. 2 Calculation
        • Accelerator pedal released: Approx. 22%
        • Accelerator pedal fully depressed: Approx. 92%
        		 C27-90
        V TP sensor No. 2 voltage Input
        • Accelerator pedal released: Approx. 3.92 V
        • Accelerator pedal fully depressed: Approx. 0.41 V
        Lowest Closed Throttle Voltage V TP sensor No. 1 minimum voltage at CTP Calculation Ignition switched ON (engine off): Approx. 0.5 V C27-89
        Lowest Closed Throttle Voltage - Sensor2 V TP sensor No. 2 maximum voltage at CTP Calculation Ignition switched ON (engine off): Approx. 4.5 V C27-90
        Module supply voltage V Battery positive voltage Input Displays battery voltage A42-4
        Vehicle Speed km/h Vehicle speed Calculation Displays vehicle speed CAN
        (A42-9, A42-22)
        Actual Exhaust Variable Valve Timing Control - Retard Amount from Max Advance Position deg Actual exhaust variable valve timing control - retard amount from max advance position Calculation Displays in the techstream but it does not operate. -
        Target Exhaust Variable Valve Timing Control deg Target exhaust variable valve timing control - retard amount from max advance position Calculation Displays in the techstream but it does not operate. -
        Exhaust Camshaft Position Duty Cycle1 % OCV control duty value Calculation Displays in the techstream but it does not operate. -
        Actual Intake Variable Valve Timing Control - Advance Amount from Max Retard Position deg Actual intake variable valve timing control - advance amount from max retard position Calculation
        • Displays actual intake valve timing

          Idle (after warm up) 

          • Below 1 °

          Racing (engine speed is 2, 000 rpm) 

          • Approx. 21 °

          Racing (engine speed is 4, 000 rpm) 

          • Approx. 31 °
        		 C27-9
        Target Intake Variable Valve Timing Control - Advance Amount from Max Retard Position deg Target intake variable valve timing control - advance amount from max retard position Calculation
        • Displays actual intake valve timing

          Idle (after warm up) 

          • Below 0 °

          Racing (engine speed is 2, 000 rpm) 

          • Approx. 21 °

          Racing (engine speed is 4, 000 rpm) 

          • Approx. 32 °
        		 -

        () *1: ATX*2: MTX

  2. PCM CONFIGURATION (USING READ/WRITE FUNCTION) 
    NOTE:

    When the configuration is performed, CAN communication between the PCM and control module connected to the CAN circuit is cut temporarily, and communication error DTCs may be detected. After performing the configuration, verify the DTCs for the control module connected to the CAN circuit and clear it if any DTC is detected.

    HINT: 

    When performing configuration, it is necessary to read the vehicle specification information from the PCM before replacing it. Connect the techstream to the vehicle and perform vehicle identification before removing the PCM. The vehicle specification information is temporarily stored in the techstream.

    1. Connect the techstream to the DLC-2.
    2. After the vehicle is identified, select the following items from the initialization screen of the techstream.
      1. Select "Module Programming".
    3. Then, select items from the screen menu in the following order.
      1. Select "Programmable Module Installation".
      2. Select "PCM".
    4. Perform the configuration according to the directions on the screen.
    5. Verify the DTCs for all of the control modules connected to the CAN circuit.
      • If any DTC is stored, clear it.
      • If the DTC is cleared, finish the procedure because the configuration has been completed normally.
      • If the DTC remains, perform troubleshooting according to the DTC.
  3. PCM CONFIGURATION (USING AS-BUILT DATA) 
    NOTE:

    When the configuration is performed, CAN communication between the PCM and control module connected to the CAN circuit is cut temporarily, and communication error DTCs may be detected. After performing the configuration, verify the DTCs for the control module connected to the CAN circuit and clear it if any DTC is detected.

    HINT: 

    If the configuration is performed using As-Built data, the set value of the personalization function is reset to the initial value (condition when shipped from factory). Verify the set value with the customer and perform the personalization function setting after performing the configuration using As-Built data.

    1. Connect the techstream to the DLC-2.
    2. After the vehicle is identified, select the following items from the initialization screen of the techstream.
      1. Select "Module Programming".
    3. Then, select items from the screen menu in the following order.
      1. Select "As-Built".
      2. Select "PCM".
    4. Perform the configuration according to the directions on the screen.
    5. Verify the DTCs for all of the control modules connected to the CAN circuit.
      • If any DTC is stored, clear it.
      • If the DTC is cleared, finish the procedure because the configuration has been completed normally.
      • If the DTC remains, perform troubleshooting according to the DTC.
  4. BAROMETRIC PRESSURE (BARO) SENSOR INSPECTION 
    1. Voltage Inspection

      HINT: 

      Because the BARO sensor is integrated in the PCM, replacing the BARO sensor includes replacement of the PCM.

      1. Connect the techstream to the DLC-2.
      2. Switch the ignition ON (engine off).
      3. Verify that the BARO sensor output voltage (PID: BARO) is within the specification.

        Refer to ON-BOARD DIAGNOSTIC TEST

        See step  1

        • If not as specified, replace the PCM.

          Refer to REMOVAL 

        Specification (Reference) 

        GTY493339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a High
        *b Output Voltage
        *c Low
        *d Baro
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