KEY REMINDER WARNING SYSTEM(w/o Entry and Start System) TERMINALS OF ECU


  1. CHECK MAIN BODY ECU AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    A01VEJVE02
    Text in Illustration
    *A for LHD *B for RHD
    *1 Instrument Panel Junction Block Assembly *2 Main Body ECU

    1. Remove the main body ECU from the instrument panel junction block assembly.

    2. Disconnect the F76 main body ECU connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      MB-11 (GND1) - Body ground None - Body ground Ground Always Below 1 Ω
      MB-30 (BECU) - Body ground None - Body ground Battery power supply Always 11 to 14 V
      MB-31 (ALTB) - Body ground None - Body ground Battery power supply Always 11 to 14 V
      MB-29 (ACC) - Body ground None - Body ground ACC power supply Ignition switch on (ACC) 11 to 14 V
      MB-32 (IG) - Body ground None - Body ground Ignition switch power supply Ignition switch on (IG) 11 to 14 V
      F76-17 (KSW) - Body ground Y - Body ground Unlock warning switch input No Key in ignition key cylinder (off) 10 kΩ or higher
      Key inserted ignition key cylinder (on) Below 1 Ω

    4. Install the main body ECU to the instrument panel junction block assembly.

    5. Reconnect the F76 main body ECU connector.

    6. Measure the voltage, check for pulse according to the valve(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      3D-36 (FLCY) - Body ground L - Body ground Front door LH courtesy light switch input Front door LH open Below 1 V
      Front door LH closed Pulse generation
      F76-19 (FRCY) - Body ground Y - Body ground Front door RH courtesy light switch input Front door RH open Below 1 V
      Front door RH closed Pulse generation
      F76-17 (KSW) - Body ground Y - Body ground Unlock warning switch input No Key in ignition key cylinder (off) 11 to 14 V
      Key inserted ignition key cylinder (on) Below 1 V