ENTRY AND START SYSTEM (for Start Function) TERMINALS OF ECU


  1. CHECK POWER MANAGEMENT CONTROL ECU OR POWER SOURCE CONTROL ECU

    A0119CJE06
    Text in Illustration
    *1 for 1KR-FE and 1NR-FE *2 for 1ND-TV

    1. Disconnect the power management control ECU or power source control ECU connectors.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Power Management Control ECU
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D36-4 (NE) - Body ground P - Body ground ECM Always 10 kΩ or higher
      D38-1 (AM22) - Body ground L - Body ground Battery power Always 11 to 14 V
      D38-2 (AM21) - Body ground R - Body ground Battery power Always 11 to 14 V
      D38-3 (SLP) - Body ground BR - Body ground

      Steering lock actuator

      (Steering lock ECU)

      		 Always 10 kΩ or higher
      D38-5 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D38-6 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D38-8 (SLR+) - Body ground GR - Body ground

      Steering lock actuator

      (Steering lock ECU)

      		 Always 10 kΩ or higher
      D38-11 (CA3N) - Body ground W - Body ground CAN line Always 10 kΩ or higher
      D38-12 (CA3P) - Body ground B - Body ground CAN line Always 10 kΩ or higher
      D38-13 (CA1L) - Body ground W - Body ground CAN line Always 10 kΩ or higher
      D38-14 (CA1H) - Body ground L - Body ground CAN line Always 10 kΩ or higher
      D38-17 (SSW2) - Body ground P - Body ground Engine switch Engine switch pushed Below 1 Ω
      Engine switch not pushed 10 kΩ or higher
      D38-18 (SSW1) - Body ground V - Body ground Engine switch Engine switch pushed Below 1 Ω
      Engine switch not pushed 10 kΩ or higher
      D38-23 (SPD) - Body ground V - Body ground Combination meter assembly Always 10 kΩ or higher
      D38-24 (LIN2) - Body ground P - Body ground LIN line Always 10 kΩ or higher
      Power Source Control ECU
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D72-4 (NE) - Body ground P - Body ground ECM Always 10 kΩ or higher
      D73-1 (AM22) - Body ground L - Body ground Battery power Always 11 to 14 V
      D73-2 (AM21) - Body ground R - Body ground Battery power Always 11 to 14 V
      D73-3 (SLP) - Body ground BR - Body ground

      Steering lock actuator

      (Steering lock ECU)

      		 Always 10 kΩ or higher
      D73-5 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D73-6 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D73-8 (SLR+) - Body ground GR - Body ground

      Steering lock actuator

      (Steering lock ECU)

      		 Always 10 kΩ or higher
      D73-11 (CA3N) - Body ground W - Body ground CAN line Always 10 kΩ or higher
      D73-12 (CA3P) - Body ground B - Body ground CAN line Always 10 kΩ or higher
      D73-13 (CA1L) - Body ground W - Body ground CAN line Always 10 kΩ or higher
      D73-14 (CA1H) - Body ground L - Body ground CAN line Always 10 kΩ or higher
      D73-17 (SSW2) - Body ground P - Body ground Engine switch Engine switch pushed Below 1 Ω
      Engine switch not pushed 10 kΩ or higher
      D73-18 (SSW1) - Body ground V - Body ground Engine switch Engine switch pushed Below 1 Ω
      Engine switch not pushed 10 kΩ or higher
      D73-23 (SPD) - Body ground V - Body ground Combination meter assembly Always 10 kΩ or higher
      D73-24 (LIN2) - Body ground P - Body ground LIN line Always 10 kΩ or higher

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

    3. Reconnect the power management control ECU or power source control ECU connectors.

    4. Measure the voltage according to the value(s) in the table below.

      Power Management Control ECU
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D36-2 (STA) - D38-6 (GND) L - W-B ST relay Cranking 6.0 V or more
      D36-3 (STAR) - D38-6 (GND) V - W-B ST relay Shift lever in P or N Below 1 V
      D36-4 (NE) - D38-6 (GND) P - W-B ECM Engine running Pulse generation
      D36-8 (IG2D) - D38-6 (GND) R - W-B IG2 relay Engine switch on (IG) 8 to 14 V
      Engine switch on (ACC) Below 1 V
      D36-11 (STP1) D38-6 (GND) BR - W-B Stop light switch assembly Brake pedal depressed 8 to 14 V
      Brake pedal released Below 1 V
      D38-3 (SLP) - D38-6 (GND) BR - W-B

      Steering lock actuator

      (Steering lock ECU)

      		 Steering lock locked 8 to 14 V
      Steering lock released Below 1.2 V
      D38-8 (SLR+) - D38-6 (GND) GR - W-B

      Steering lock actuator

      (Steering lock ECU)

      		 Steering lock actuator Below 1 V
      Steering lock actuator 8 to 14 V
      D38-10 (INDW) - D38-6 (GND) G - W-B Engine switch Brake pedal released, shift lever in P, engine switch on (ACC, IG) 8 to 14 V
      D38-16 (P)* - D38-6 (GND) R - W-B Steering lock control unit assembly Shift lever in P 8 to 14 V
      Shift lever not in P Below 1 V
      D38-17 (SSW2) - D38-6 (GND) P - W-B Engine switch Engine switch not pushed 8 to 14 V
      Engine switch pushed Below 1 V
      D38-18 (SSW1) - D38-6 (GND) V - W-B Engine switch Engine switch not pushed 8 to 14 V
      Engine switch pushed Below 1 V
      D38-19 (ACCD) - D38-6 (GND) B - W-B ACC relay Engine switch off Below 1 V
      Engine switch on (ACC) 8 to 14 V
      D38-20 (IG1D) - D38-6 (GND) LG - W-B Instrument panel junction block assembly Engine switch on (ACC) Below 1 V
      Engine switch on (IG) 8 to 14 V
      D38-22 (INDS) - D38-6 (GND) Y - W-B Engine switch Brake pedal depressed, shift lever in P 8 to 14 V
      D38-23 (SPD) - D38-6 (GND) V - W-B Combination meter assembly Driving at approx. 5 km/h (3 mph)

      Pulse generation

      (See waveform 1)

      *: for Continuously Variable Transaxle

      Power Source Control ECU
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D72-2 (STA) - D73-6 (GND) L - W-B ST relay Cranking 6.0 V or more
      D72-3 (STAR) - D73-6 (GND) V - W-B ST relay Shift lever in P or N Below 2 V
      D72-4 (NE) - D73-6 (GND) P - W-B ECM Engine running Pulse generation
      D72-8 (IG2D) - D73-6 (GND) R - W-B IG2 relay Engine switch on (IG) 9 to 14 V
      Engine switch on (ACC) Below 1 V
      D72-11 (STP1) D73-6 (GND) BR - W-B Stop light switch assembly Brake pedal depressed 9 to 14 V
      Brake pedal released Below 1 V
      D73-3 (SLP) - D73-6 (GND) BR - W-B

      Steering lock actuator

      (Steering lock ECU)

      		 Steering lock locked 11 to 14 V
      Steering lock released Below 1.2 V
      D73-8 (SLR+) - D73-6 (GND) GR - W-B

      Steering lock actuator

      (Steering lock ECU)

      		 Steering lock actuator Below 1 V
      Steering lock actuator 11 to 14 V
      D73-10 (INDW) - D73-6 (GND) G - W-B Engine switch Brake pedal released, shift lever in P, engine switch on (ACC, IG) 7 to 14 V
      D73-16 (P)* - D73-6 (GND) R - W-B Shift lock control unit assembly Shift lever in P 11 to 14 V
      Shift lever not in P Below 1.5 V
      D73-17 (SSW2) - D73-6 (GND) P - W-B Engine switch Engine switch not pushed 11 to 14 V
      Engine switch pushed Below 1 V
      D73-18 (SSW1) - D73-6 (GND) V - W-B Engine switch Engine switch not pushed 11 to 14 V
      Engine switch pushed Below 1 V
      D73-19 (ACCD) - D73-6 (GND) B - W-B ACC relay Engine switch off Below 1 V
      Engine switch on (ACC) 9 to 14 V
      D73-20 (IG1D) - D73-6 (GND) LG - W-B Instrument panel junction block assembly Engine switch on (ACC) Below 1 V
      Engine switch on (IG) 9 to 14 V
      D73-22 (INDS) - D73-6 (GND) L - W-B Engine switch Brake pedal depressed, shift lever in P 7 to 14 V
      D73-23 (SPD) - D73-6 (GND) V - W-B Combination meter assembly Driving at approx. 5 km/h (3 mph)

      Pulse generation

      (See waveform 2)

      *: for Continuously Variable Transaxle

      Tech Tips

      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. A0117GJE01

        Power management control ECU

        Waveform 1 (SPD)
        Tester Connection Tool Setting Vehicle Condition Specified Condition
        D38-23 (SPD) - D38-6 (GND) 5 V/DIV., 10 ms./DIV. Driving at approx. 5 km/h (3 mph) Correct waveform as shown in illustration

        Tech Tips

        As the engine speed increases, the wavelength shortens.

      2. A0117GJE01

        Power source control ECU

        Waveform 2 (SPD)
        Tester Connection Tool Setting Vehicle Condition Specified Condition
        D73-23 (SPD) - D73-6 (GND) 5 V/DIV., 10 ms./DIV. Driving at approx. 5 km/h (3 mph) Correct waveform as shown in illustration

        Tech Tips

        As the engine speed increases, the wavelength shortens.

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A011B4AE07

    1. Disconnect the D34 ECU connector.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Certification ECU
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D34-1 (+B) - Body ground B - Body ground +B power supply Always 11 to 14 V
      D34-29 (LIN) - Body ground L - Body ground LIN line Always 10 kΩ or higher
      D34-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

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

  3. CHECK STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)

    A011A61E24

    1. Disconnect the D33 ECU connector.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Steering Lock ECU
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D33-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D33-6 (IG2) - Body ground L - Body ground Power supply Engine switch on (IG) 11 to 14 V
      D33-6 (IG2) - Body ground L - Body ground Power supply Engine switch off Below 1 V
      D33-7 (B) - Body ground P - Body ground +B power supply Always 11 to 14 V

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

    3. Reconnect the D33 ECU connector.

    4. Measure the voltage according to the value(s) in the table below.

      Steering Lock ECU
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D33-4 (SLP1) - D33-1 (GND) BR - W-B Steering lock actuator position signal Steering is locked 11 to 14 V
      D33-4 (SLP1) - D33-1 (GND) BR - W-B Steering lock actuator position signal Steering is released Below 1 V

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