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Terminals Of Ecu [08/2015 - 08/2019]

  1. CHECK POWER MANAGEMENT CONTROL ECU 
    Fig 1: F80 ECU Connector
    GTY724157Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F80 power management control ECU connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F80-1 (AM22) - Body ground B - Body ground +B power supply Always 9.5 to 14 V
      F80-2 (AM21) - Body ground B - Body ground +B power supply Always 9.5 to 14 V
      F80-5 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F80-6 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F80-17 (SSW2) - Body ground R - Body ground Engine switch signal Engine switch pushed Below 1 Ω
      F80-17 (SSW2) - Body ground R - Body ground Engine switch signal Engine switch not pushed 10 kΩ or higher
      F80-18 (SSW1) - Body ground LG - Body ground Engine switch signal Engine switch pushed Below 1 Ω
      F80-18 (SSW1) - Body ground LG - Body ground Engine switch signal Engine switch not pushed 10 kΩ or higher
      F80-24 (LIN2) - Body ground G - Body ground LIN line Always 10 kΩ or higher

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the F80 power management control ECU connector.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F80-3 (SLP) - F80-6 (GND) SB - W-B Steering lock actuator position signal Steering lock released Pulse generation
      (See waveform 1)
      F80-3 (SLP) - F80-6 (GND) SB - W-B Steering lock actuator position signal Steering lock locked Pulse generation
      (See waveform 1)
      F80-8 (SLR+) - F80-6 (GND) GR - W-B Steering lock motor signal Steering lock motor operating Below 1 V
      F80-8 (SLR+) - F80-6 (GND) GR - W-B Steering lock motor signal Steering lock motor not operating 11 to 14 V
      F80-10 (INDW) - F80-6 (GND) L - W-B Warning signal
      • Brake pedal depressed
      • Shift lever in P
      • Engine switch on (ACC) or on (IG)
      		 8 to 14 V
      F80-16 (P) - F80-6 (GND) V - W-B Shift lock signal Shift lever in P 8 to 14 V
      F80-16 (P) - F80-6 (GND) V - W-B Shift lock signal Shift lever not in P Below 1 V
      F80-19 (ACCD) - F80-6 (GND) R - W-B ACC signal Engine switch on (ACC) 8 to 14 V
      F80-19 (ACCD) - F80-6 (GND) R - W-B ACC signal Engine switch off Below 1 V
      F80-20 (IG1D) - F80-6 (GND) V - W-B IG1 signal Engine switch on (IG) 8 to 14 V
      F80-20 (IG1D) - F80-6 (GND) V - W-B IG1 signal Engine switch on (ACC) Below 1 V
      F80-22 (INDS) - F80-6 (GND) B - W-B Vehicle condition signal
      • Brake pedal depressed
      • Shift lever in P
      		 8 to 14 V
      F80-23 (SPD) - F80-6 (GND) SB - W-B Vehicle speed signal Engine switch on (IG), vehicle being driven at approx. 20 km/h (12 mph) Pulse generation
      (See waveform 2)
      F81-2 (STA) - F80-6 (GND) W - W-B Park/neutral position switch signal Shift lever in P or N Below 1 V
      F81-3 (STAR) - F80-6 (GND) B - W-B Starter signal
      • Brake pedal depressed
      • Shift lever in P
      • Engine cranking
      		 8 to 14 V*
      F81-8 (IG2D) - F80-6 (GND) L - W-B IG2 signal Engine switch on (IG) 8 to 14 V
      F81-8 (IG2D) - F80-6 (GND) L - W-B IG2 signal Engine switch on (ACC) Below 1 V
      F81-11 (STP1) - F80-6 (GND) V - W-B Stop light signal Brake pedal depressed 8 to 14 V
      F81-11 (STP1) - F80-6 (GND) V - W-B Stop light signal Brake pedal released Below 1 V
      1. *: Voltage is output for 0.3 seconds when the engine is cranking. Disconnect the connector from the ECM before measuring the voltage.

      If the result is not as specified, the ECU may have a malfunction.

    5. Using an oscilloscope, check the signal waveform of the ECU.
      1. Waveform 1
        Fig 2: Waveform 1
        GTY695032Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        WAVEFORM 1 (REFERENCE)

        Terminal No. (Symbol) F80-3 (SLP) - F80-6 (GND)
        Tool Setting 2 V/DIV., 100 ms./DIV.
        Vehicle Condition Steering lock locked or released
      2. Waveform 2
        Fig 3: Waveform 2
        GTY701587Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        WAVEFORM 2 (REFERENCE)

        Terminal No. (Symbol) F80-23 (SPD) - F80-6 (GND)
        Tool Setting 5 V/DIV., 10 ms./DIV.
        Vehicle Condition Engine switch on (IG), vehicle being driven at approx. 5 km/h (3 mph)

        HINT: 

        As the vehicle speed increases, the wavelength shortens.

  2. CHECK CERTIFICATION ECU 
    Fig 4: F79 ECU Connector
    GTY734334Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F79 certification ECU connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F79-1 (+B) - Body ground V - Body ground +B power supply Always 11 to 14 V
      F79-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F79-29 (LIN) - Body ground G - Body ground LIN line Always 10 kΩ or higher

      If the result is not as specified, there may be a malfunction on the wire harness side.

  3. CHECK STEERING LOCK ECU 
    Fig 5: F68 ECU Connector
    GTY707682Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F68 steering lock ECU connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F68-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F68-6 (IG2) - Body ground W - Body ground Ignition power supply Engine switch on (IG) 11 to 14 V
      F68-6 (IG2) - Body ground W - Body ground Ignition power supply Engine switch off Below 1 V
      F68-7 (B) - Body ground GR - Body ground +B power supply Always 11 to 14 V
      1. If the result is not as specified, there may be a malfunction on the wire harness side.
    3. Reconnect the F68 steering lock ECU connector.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F68-4 (SLP1) - F68-1 (GND) SB - W-B Steering lock actuator position signal Steering lock locked 11 to 14 V
      F68-4 (SLP1) - F68-1 (GND) SB - W-B Steering lock actuator position signal Steering lock released Below 1 V
      1. If the result is not as specified, the ECU may have a malfunction.
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