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Terminals Of ECM

  1. CHECK ECM 
    Fig 1: ECM Connector Terminals
    G05644392Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage according to the value(s) in the table below.

      HINT:

      The standard normal voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.

      TERMINAL DESCRIPTION

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A27-1 (BATT) - D56-81 (E1) L-BR Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
      D56-41 (+BM) - D56-81 (E1) P-BR Power source of throttle actuator Always 11 to 14 V
      A27-28 (IGSW) - D56-81 (E1) LG-BR Ignition switch Ignition switch ON 11 to 14 V
      A27-3(+B)-D56-81(E1) GR-BR Power source of ECM Ignition switch ON 11 to 14 V
      A27-2 (+B2) - D56-81 (E1) GR-BR Power source of ECM Ignition switch ON 11 to 14 V
      D56-58(OC1+)-D56-57 (OC1-) B-B-L Camshaft oil control valve (OCV) (for Intake Side of Bank 1) Idling Pulse generation (see  bwaveform 1)
      D56-52 (OC2+) - D56-51 (OC2-) L-B - R-B Camshaft oil control valve (OCV) (for Intake Side of Bank 2) Idling Pulse generation (see  bwaveform 1)
      D56-56(OE1+)-D56-55 (OE1-) L-W - L-B Camshaft oil control valve (OCV) (for Exhaust Side of Bank 1) Idling Pulse generation (see  bwaveform 1)
      D56-50 (OE2+) - D56-49 (OE2-) L-R-L Camshaft oil control valve (OCV) (for Exhaust Side of Bank 2) Idling Pulse generation (see  bwaveform 1)
      A27-34 (MREL) - D56-81 (E1) W - BR EFI MAIN relay Ignition switch ON 11 to 14 V
      D56-74 (VG) - D56-75 (E2G) L-Y - G-W Mass air flow meter Idling, Shift lever in P or N, A/C switch OFF 0.5 to 3.0 V
      D56-73 (THA) - D56-97 (ETHW) Y-B - BR Intake air temperature sensor Idling, Intake air temperature 20°C (68°F) 0.5 to 3.4 V
      D56-76 (THW) - D56-98 (ETHA) G-B - BR Engine coolant temperature sensor Idling, Engine coolant temperature 80°C (176°F) 0.2 to 1.0 V
      D56-80 (VCTA) - D56-79 (ETA) Y - L Power source of throttle position sensor (specific voltage) Ignition switch ON 4.5 to 5.5 V
      D56-78(VTA1)-D56-79 (ETA) R-Y - L Throttle position sensor (for engine control) Ignition switch ON, Throttle valve fully closed 0.5 to 1.2 V
      Ignition switch ON, Throttle valve fully open 3.2 to 4.8 V
      D56-77 (VTA2) - D56-79 (ETA) Y-B - L Throttle position sensor (for sensor malfunction detection) Ignition switch ON, Throttle valve fully closed 2.1 to 3.1 V
      Ignition switch ON, Throttle valve fully open 4.5 to 5.5 V
      A27-55 (VPA) - A27-58 (EPA) W-O Accelerator pedal position sensor (for engine control) Ignition switch ON, Accelerator pedal released 0.5 to 1.1 V
      Ignition switch ON, Accelerator pedal fully depressed 2.6 to 4.5 V
      A27-56 (VPA2) - A27-60 (EPA2) LG - BR Accelerator pedal position sensor (for sensor malfunctioning detection) Ignition switch ON, Accelerator pedal released 1.2 to 2.0 V
      Ignition switch ON, Accelerator pedal fully depressed 3.4 to 5.3 V
      A27-57 (VCPA) - A27-58 (EPA) B - O Power source of accelerator pedal position sensor (for VPA) Ignition switch ON 4.5 to 5.5 V
      A27-59 (VCP2) - A27-60 (EPA2) V - BR Power source of accelerator pedal position sensor (for VPA2) Ignition switch ON 4.5 to 5.5 V
      D56-22 (HA1A) - D56-23 (E04) L - W-B A/F sensor heater Idling with warm engine Pulse generation (see  cwaveform 2)
      D56-20 (HA2A) - D56-21 (E05) G - W-B A/F sensor heater Ignition switch ON 11 to 14 V
      D56-126(A1A+)-D56-81 (E1) G - BR A/F sensor Ignition switch ON 3.3 V*
      D56-125(A1A-)-D56-81 (E1) R - BR A/F sensor Ignition switch ON 2.9 V*
      D56-103(A2A+)-D56-81 (E1) P - BR A/F sensor Ignition switch ON 3.3 V*
      D56-102(A2A-)-D56-81 (E1) L - BR A/F sensor Ignition switch ON 2.9 V*
      D56-45(HT1B)-D56-46 (E03) G-B - W-B Heated oxygen sensor heater Idling Below 3.0 V
      D56-44 (HT2B) - D56-46 (E03) B - W-B Heated oxygen sensor heater Ignition switch ON 11 to 14 V
      D56-114(OX1B)-D56-115 (EX1B) G - L Heated oxygen sensor Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor Pulse generation (see  dwaveform 3)
      D56-112 (OX2B) - D56-113 (EX2B) R - W
      D56-86(#10)-D56-43 (E01) R-L - W-B Injector Ignition switch ON 11 to 14 V
      D56-109(#20)-D56-43 (E01) L-W-B Idling Pulse generation (see  ewaveform 4)
      D56-85 (#30) - D56-43 (E01) R-W-B
      D56-108(#40)-D56-43 (E01) Y-W-B
      D56-84 (#50) - D56-43 (E01) G-W-B
      D56-107(#60)-D56-43 (E01) R-W-B
      D56-83 (#70) - D56-43 (E01) W-W-B
      D56-106(#80)-D56-43 (E01) R-B - W-B
      D56-94(KNK1)-D56-93 (EKNK) R-G Knock sensor Engine speed maintained at 4000 rpm after warming up engine Pulse generation (see  fwaveform 5)
      D56-117 (KNK2) - D56-116 (EKN2) W-B
      D56-96 (KNK3) - D56-95 (EKN3) W-B
      D56-119(KNK4)-D56-118 (EKN4) R-G
      D56-92(W1+)-D56-91 (W1-) R-G Variable valve timing (VVT) sensor (for Intake Side of Bank 1) Idling Pulse generation (see  gwaveform 6)
      D56-87 (W2+) - D56-88 (W2-) R-Y Variable valve timing (VVT) sensor (for Intake Side for Bank 2) Idling Pulse generation (see  hwaveform 6)
      D56-69(EV1+)-D56-68 (EV1-) R-L-B Variable valve timing (VVT) sensor (for Exhaust Side of Bank 1) Idling Pulse generation (see  rwaveform 17)
      D56-64 (EV2+) - D56-65 (EV2-) R-L-B Variable valve timing (VVT) sensor (for Exhaust Side of Bank 2) Idling Pulse generation (see  rwaveform 17)
      D56-110(NE+)-D56-111 (NE-) W-Y Crankshaft position sensor Idling Pulse generation (see  gwaveform 6)
      D56-40(IGT1)-D56-81(E1) B-Y - BR Ignition coil (ignition signal) Idling Pulse generation (see  hwaveform 7)
      D56-33(IGT2)-D56-81(E1) L-Y - BR
      D56-37(IGT3)-D56-81(E1) B-BR
      D56-34 (IGT4) - D56-81 (E1) L-B - BR
      D56-35(IGT5)-D56-81(E1) G-R - BR
      D56-36(IGT6)-D56-81(E1) G-BR
      D56-38(IGT7)-D56-81(E1) G-W - BR
      D56-39(IGT8)-D56-81(E1) G-B - BR
      D56-104(IGF1)-D56-81 (E1) G-B - BR Ignition coil (ignition confirmation signal) Ignition switch ON 4.5 to 5.5 V
      Idling Pulse generation (see  hwaveform 7)
      D56-105(IGF2)-D56-81 (E1) R-BR Ignition coil (ignition confirmation signal) Ignition switch ON 4.5 to 5.5 V
      Idling Pulse generation (see  hwaveform 7)
      D56-63 (PRG) - D56-81 (E1) L-B - BR Purge VSV Ignition switch ON 11 to 14 V
      Idling Pulse generation (see  iwaveform 8)
      A27-13(SPD)-D56-81(E1) B - BR Speed signal from combination meter Driving at 20 km/h (12 mph) Pulse generation (see  jwaveform 9)
      A27-46 (STA) - D56-81 (E1) R - BR Starter signal Cranking 5.5 V or more
      D56-120(NSW)-D56-81 (E1) L - BR Park/neutral position switch Ignition switch ON, Shift lever position other than P or N 11 to 14 V
      Ignition switch ON, Shift lever in P or N Below 3.0 V
      A27-26 (STP) - D56-81 (E1) LG-BR Stop light switch Brake pedal depressed 7.5 to 14 V
      Brake pedal released Below 1.5 V
      A27-35 (ST1-) - D56-81 (E1) R - BR Stop light switch (opposite to STP terminal) Ignition switch ON, Brake pedal depressed Below 1.5 V
      Ignition switch ON, Brake pedal released 7.5 to 14 V
      D56-19(M+)-D56-82 (ME01) R-W-B Throttle actuator Idling with warm engine Pulse generation (see  kwaveform 10)
      D56-18(M-)-D56-82 (ME01) G-W-B Throttle actuator Idling with warm engine Pulse generation (see  lwaveform 11)
      A27-48 (FC) - D56-81 (E1) L-BR Fuel pump control Ignition switch ON 11 to 14 V
      A27-52 (FPC) - D56-81 (E1) O-BR Fuel pump control Ignition switch ON Below 1.5 V
      A27-24 (W) - D56-81 (E1) P-BR MIL Ignition switch ON Below 3.0 V
      Idling 11 to 14 V
      A27-16(TC)-D56-81 (E1) R-BR Terminal TC of DLC3 Ignition switch ON 11 to 14 V
      A27-15(TACH)-D56-81 (E1) W-BR Engine speed Idling Pulse generation (see  mwaveform 12)
      A27-30 (VPMP) - D56-81 (E1) V-BR Vent valve (built into canister pump module) Ignition switch ON 11 to 14 V
      A27-49 (MPMP) - D56-81 (E1) G-BR Leak detection pump (built into canister pump module) Leak detection pump OFF Below 3.0 V
      Leak detection pump ON 11 to 14 V
      D56-67(VCV1)-D56-97 (ETHW) L-BR Power source for sensor (specific voltage) Ignition switch ON 4.5 to 5.5 V
      D56-66 (VCV2) - D56-97 (ETHW) L-BR Power source for sensor (specific voltage) Ignition switch ON 4.5 to 5.5 V
      D56-121 (PPMP) - D56-97 (ETHW) P-BR Canister pressure sensor (built into canister pump module) Ignition switch ON 3.3 to 4.0 V
      D56-32 (ALT) - D56-81 (E1) R-BR Generator Ignition switch ON 11 to 14 V
      A27-10(CANH)-D56-81 (E1) GR-BR CAN communication line Ignition switch ON Pulse generation (see  nwaveform 13)
      A27-11 (CANL) - D56-81 (E1) W-BR CAN communication line Ignition switch ON Pulse generation (see  owaveform 14)
      D56-62 (ACIS) - D56-81 (E1) L-Y - BR VSV for ACIS (Acoustic Control Induction System) operation signal Ignition switch ON 11 to 14 V
      D56-28 (AIRV) - D56-81 (E1) BR-BR Air switching valve for secondary air injection system Ignition switch ON 11 to 14 V
      D56-54 (AIRP) - D56-81 (E1) P-BR Air pump control Ignition switch ON 11 to 14 V
      D56-30 (AIDI) - D56-81 (E1) G-BR Diagnostic information signal for air injection system Air injection system operates Pulse generation (see  qwaveform 16)
      A27-54 (AIP) - D56-98 (ETHA) Y-BR Secondary air injection system pressure signal Ignition switch ON 3.0 to 3.6 V
      A27-43 (ARV2) - D56-81 (E1) V-BR Air switching valve for secondary air injection system Ignition switch ON 11 to 14 V
      D56-53 (ARP2) - D56-81 (E1) P-L - BR Air pump control Ignition switch ON 11 to 14 V
      D56-29 (AID2) - D56-81 (E1) G-Y - BR Diagnostic information signal for air injection system Air injection system operates Pulse generation (see  qwaveform 16)
      A27-53(AIP2)-D56-97 (ETHW) G-BR Secondary air injection system pressure signal Ignition switch ON 3.0 to 3.6 V
      D56-90 (G2) - D56- 89 (G2-) R-B Camshaft position sensor Idling Pulse generation (see  pwaveform 15)
      A27-18(DI)-D56-81 (E1) Y-BR Fuel pump control Ignition switch ON 0 to 3.0 V
      A27-14(STSW)-D56-81 (E1) BR-BR Starter switch Shift lever in P or N, Cranking 6.0 V or more
      A27-41 (ACCR) - D56-81 (E1) BR-BR ACC relay control signal Ignition switch ON → Cranking 11 to 14V→ Below 1 V
      D56-16(STAR)-D56-81 (E1) L-BR Starter relay control Ignition switch ON Below 1.5 V
      Cranking 5.5 V or more
      D56-72 (PSP) - D56-81 (E1) G-BR Power steering oil pressure sensor Ignition switch ON 0.5 to 4.5 V
      HINT:
      *: The ECM terminal voltage is constant regardless of the output voltage from the sensor.
    2. WAVEFORM 1:

      Camshaft Oil Control Valve (OCV) 

      CAMSHAFT OIL CONTROL VALVE (OCV)

      Terminal No. (Symbol) Tool Setting Condition
      D56-58(OC1+)-D56-57 (OC1-) 5 V/DIV., 1 msec/DIV. Idling
      D56-52 (OC2+) - D56-51 (OC2-) 5 V/DIV., 1 msec/DIV. Idling
      D56-56(OE1+)-D56-55 (OE1-) 5 V/DIV., 1 msec/DIV. Idling
      D56-50 (OE2+) - D56-49 (OE2-) 5 V/DIV., 1 msec/DIV. Idling
      Fig 2: Waveform 1 Graph
      G05644393Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. WAVEFORM 2:

      Air Fuel Ratio Sensor Heater 

      AIR FUEL RATIO SENSOR HEATER

      Terminal No. (Symbol) Tool Setting Condition
      CH1:D56-22(HA1A)-D56-23 (E04) 5 V/DIV., 10 msec/DIV. Idle with warm engine
      CH2: D56-20 (HA2A) -D56-21 (E05) 5 V/DIV., 10 msec/DIV. Idle with warm engine

      HINT:

      The wavelength varies in accordance with the engine operating condition.

      Fig 3: Waveform 2 Graph
      G05644394Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. WAVEFORM 3:

      Heated Oxygen Sensor 

      HEATED OXYGEN SENSOR

      Terminal No. (Symbol) Tool Setting Condition
      D56-114(OX1B)-D56-115(EX1B) 0.2 V/DIV., 200 msec/DIV. Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor
      D56-112(OX2B)-D56-113 (EX2B) 0.2 V/DIV., 200 msec/DIV. Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor

      HINT:

      In Data List, item O2S B1 S2 shows the ECM input values from the heated oxygen sensor.

      Fig 4: Waveform 3 Graph
      G05644395Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. WAVEFORM 4:

      Injector No. 1 (to No. 8) Injection Signal 

      INJECTOR NO. 1 (TO NO. 8) INJECTION SIGNAL

      Terminal No. (Symbol) Tool Setting Condition
      D56-86(#10)-D56-43 (E01) 20 V/DIV., 20 msec/DIV. Idling
      D56-109(#20)-D56-43 (E01) 20 V/DIV., 20 msec/DIV. Idling
      D56-85 (#30) - D56-43 (E01) 20 V/DIV., 20 msec/DIV. Idling
      D56-108(#40)-D56-43 (E01) 20 V/DIV., 20 msec/DIV. Idling
      D56-84 (#50) - D56-43 (E01) 20 V/DIV., 20 msec/DIV. Idling
      D56-107(#60)-D56-43 (E01) 20 V/DIV., 20 msec/DIV. Idling
      D56-83 (#70) - D56-43 (E01) 20 V/DIV., 20 msec/DIV. Idling
      D56-106(#80)-D56-43 (E01) 20 V/DIV., 20 msec/DIV. Idling
      Fig 5: Waveform 4 Graph
      G05644396Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      The wavelength becomes shorter as the engine rpm increases.

    6. WAVEFORM 5:

      Knock Sensor 

      KNOCK SENSOR

      Terminal No. (Symbol) Tool Setting Condition
      D56-94 (KNK1)-D56-93 (EKNK) 1 V/DIV., 1 msec./DIV. Engine speed maintained at 4000 rpm after warming up engine
      D56-117 (KNK2)-D56-116 (EKN2) 1 V/DIV., 1 msec./DIV. Engine speed maintained at 4000 rpm after warming up engine
      D56-96 (KNK3) - D56-95 (EKN3) 1 V/DIV., 1 msec./DIV. Engine speed maintained at 4000 rpm after warming up engine
      D56-119 (KNK4)-D56-118 (EKN4) 1 V/DIV., 1 msec./DIV. Engine speed maintained at 4000 rpm after warming up engine

      HINT:

      • The wavelength becomes shorter as the engine rpm increases.
      • The waveforms and amplitudes displayed differ slightly depending on the vehicle.
        Fig 6: Waveform 5 Graph
        G05644397Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. WAVEFORM 6:

      Crankshaft Position Sensor and VVT Sensor for Intake Side 

      CRANKSHAFT POSITION SENSOR AND VVT SENSOR FOR INTAKE SIDE

      Terminal No. (Symbol) Tool Setting Condition
      (a) D56-110 (NE+)-D56-111 (NE-) 5 V/DIV., 20 msec/DIV. Idle after engine warmed-up
      (b) D56-92 (VV1+)-D56-91 (W1-) 5 V/DIV., 20 msec/DIV. Idle after engine warmed-up
      (c) D56-87 (VV2+) - D56-88 (W2-) 5 V/DIV., 20 msec./DIV. Idle after engine warmed-up

      HINT:

      The wavelength becomes shorter as engine rpm increases.

      Fig 7: Waveform 6 Graph
      G05644398Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. WAVEFORM 7:
      Fig 8: Waveform 7 Graph
      G05644399Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Igniter IGT Signal (from ECM to Igniter) and Igniter IGF Signal (from Igniter to ECM) 

      IGNITER IGT SIGNAL (FROM ECM TO IGNITER) AND IGNITER IGF SIGNAL (FROM IGNITER TO ECM)

      Terminal No. (Symbol) Tool Setting Condition
      (a) D56-40 (IGT1)-D56-81 (E1) 2 V/DIV., 20 msec/DIV. Idling
      (a) D56-33 (IGT2) - D56-81 (E1) 2 V/DIV, 20 msec./DIV. Idling
      (a) D56-37 (IGT3) - D56-81 (E1) 2 V/DIV, 20 msec/DIV. Idling
      (a) D56-34 (IGT4) - D56-81 (E1) 2 V/DIV., 20 msec/DIV. Idling
      (a) D56-35 (IGT5) - D56-81 (E1) 2 V/DIV., 20 msec/DIV. Idling
      (a) D56-36 (IGT6) - D56-81 (E1) 2 V/DIV, 20 msec./DIV. Idling
      (a) D56-38 (IGT7) - D56-81 (E1) 2 V/DIV., 20 msec/DIV. Idling
      (a) D56-39 (IGT8) - D56-81 (E1) 2 V/DIV., 20 msec/DIV. Idling
      (b) D56-104 (IGF1)-D56-81 (E1) 2 V/DIV, 20 msec/DIV. Idling
      (b) D56-105 (IGF2)-D56-81 (E1) 2 V/DIV, 20 msec/DIV. Idling

      HINT:

      The wavelength becomes shorter as engine rpm increases.

    9. WAVEFORM 8:

      Purge VSV 

      PURGE VSV

      Terminal No. (Symbol) Tool Setting Condition
      D56-63 (PRG) - D56-81 (E1) 10 V/DIV., 10 to 100 msec/DIV. Idling

      HINT:

      If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.

      Fig 9: Waveform 8 Graph
      G05644400Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    10. WAVEFORM 9:

      Vehicle Speed Signal 

      VEHICLE SPEED SIGNAL

      Terminal No. (Symbol) Tool Setting Condition
      A27-13 (SPD)-D56-81 (E1) 2 V/DIV, 20 msec/DIV. Driving at 20 km/h (12 mph)

      HINT:

      The wavelength becomes shorter as the vehicle speed increases.

      Fig 10: Waveform 9 Graph
      G05644401Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    11. WAVEFORM 10:

      Throttle Actuator Positive Terminal 

      THROTTLE ACTUATOR POSITIVE TERMINAL

      Terminal No. (Symbol) Tool Setting Condition
      D56-19 (M+)-D56-82 (ME01) 5 V/DIV, 1 msec/DIV. Idling with warm engine

      HINT:

      The duty ratio varies depending on the throttle actuator operation.

      Fig 11: Waveform 10 Graph
      G05644402Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    12. WAVEFORM 11: 

      Throttle Actuator Negative Terminal 

      THROTTLE ACTUATOR NEGATIVE TERMINAL

      Terminal No. (Symbol) Tool Setting Condition
      D56-18 (M-)-D56-82 (ME01) 5 V/DIV., 1 msec./DIV. Idling with warm engine

      HINT:

      The duty ratio varies depending on the throttle actuator operation.

      Fig 12: Waveform 11 Graph
      G05644403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    13. WAVEFORM 12:

      Engine Speed Signal 

      ENGINE SPEED SIGNAL

      Terminal No. (Symbol) Tool Setting Condition
      A27-15 (TACH)-D56-81 (E1) 5 V/DIV., 10 msec./DIV. Idling

      HINT:

      The wavelength becomes shorter as the engine rpm increases.

      Fig 13: Waveform 12 Graph
      G05644404Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    14. WAVEFORM 13:

      CAN Communication Signal (Reference) 

      CAN COMMUNICATION SIGNAL (REFERENCE)

      Terminal No. (Symbol) Tool Setting Condition
      A27-10 (CANH)-D56-81 (E1) 1 V/DIV, 10 μsec/DIV. Engine stops and ignition switch ON

      HINT:

      The waveform varies depending on the CAN communication signal.

      Fig 14: Waveform 13 Graph
      G05644405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    15. WAVEFORM 14:

      CAN Communication Signal (Reference) 

      CAN COMMUNICATION SIGNAL (REFERENCE)

      Terminal No. (Symbol) Tool Setting Condition
      A27-11 (CANL) - D56-81 (E1) 1 V/DIV., 10 μsec/DIV. Engine stops and ignition switch ON

      HINT:

      The waveform varies depending on the CAN communication signal.

      Fig 15: Waveform 14 Graph
      G05644406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    16. WAVEFORM 15:

      Crankshaft Position Sensor and Camshaft Position Sensor 

      CRANKSHAFT POSITION SENSOR AND CAMSHAFT POSITION SENSOR

      Terminal No. (Symbol) Tool Setting Condition
      CH1:D56-110 (NE+)-D56-111 (NE-) 5 V/DIV., 20 msec/DIV. Idle after engine warmed up
      CH2: D56-90 (G2) - D56-89 (G2-) 5 V/DIV., 20 msec/DIV. Idle after engine warmed up

      HINT:

      The wavelength becomes shorter as the engine rpm increases.

      Fig 16: Waveform 15 Graph
      G05644407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    17. WAVEFORM 16:

      Terminal PI of Air Injection Control Driver 

      TERMINAL PI OF AIR INJECTION CONTROL DRIVER

      Terminal No. (Symbol) Tool Setting Condition
      D56-30 (AIDI) - D56-81 (E1) 5 V/DIV., 20 to 40 msec./ DIV. Performing system check using Techstream (air injection check)
      D56-29 (AID2) - D56-81 (E1) 5 V/DIV., 20 to 40 msec./ DIV. Performing system check using Techstream (air injection check)

      HINT:

      The wavelength changes when the air injection control driver detects malfunctions in the air injection system (See DTC P0412 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE "A" CIRCUIT; DTC P0415 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE B CIRCUIT ).

      Fig 17: Waveform 16 Graph
      G05644408Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    18. WAVEFORM 17:

      Crankshaft Position Sensor and VVT Sensor for Exhaust Side 

      CRANKSHAFT POSITION SENSOR AND VVT SENSOR FOR EXHAUST SIDE

      Terminal No. (Symbol) Tool Setting Condition
      (a) D56-110 (NE+)-D56-111 (NE-) 5 V/DIV., 20 msec/DIV. Idle after engine warmed-up
      (b) D56-69 (EV1+)-D56-68 (EV1-) 5 V/DIV., 20 msec/DIV. Idle after engine warmed-up
      (c) D56-64 (EV2+) - D56-65 (EV2-) 5 V/DIV., 20 msec/DIV. Idle after engine warmed-up

      HINT:

      The wavelength becomes shorter as engine rpm increases.

      Fig 18: Waveform 17 Graph
      G05644409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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