POWER BACK DOOR SYSTEM TERMINALS OF ECU


  1. CHECK POWER BACK DOOR UNIT ASSEMBLY (POWER BACK DOOR ECU)

    A01WR8PE02

    1. Disconnect the L36 power back door unit assembly (power back door 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
      L36-10 (ECUB) - Body ground R - Body ground ECUB power supply Always 11 to 14 V
      L36-12 (B) - Body ground LA-B - Body ground Power supply Always 11 to 14 V
      L36-8 (IG) - Body ground G - Body ground IG power supply Engine switch on (IG) 11 to 14 V
      L36-8 (IG) - Body ground G - Body ground IG power supply Engine switch off Below 1 V
      L36-11 (GND) - Body ground W-B - Body ground Body ground Always Below 1 Ω

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

    3. Reconnect the L36 power back door unit assembly (power back door ECU) connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L36-15 (OSL) - L36-14 (OSE) G - BE Power back door sensor LH circuit Power back door sensor LH not pressed 4 to 6 V
      L36-15 (OSL) - L36-14 (OSE) G - BE Power back door sensor LH circuit Power back door sensor LH pressed Below 1 V
      L36-13 (OSR) - L36-14 (OSE) P - BE Power back door sensor RH circuit Power back door sensor RH not pressed 4 to 6 V
      L36-13 (OSR) - L36-14 (OSE) P - BE Power back door sensor RH circuit Power back door sensor RH pressed Below 1 V
      L36-17 (MSW) - Body ground W - Body ground Power back door main switch signal circuit Power back door main switch not pushed (on) Below 1.5 V
      L36-17 (MSW) - Body ground W - Body ground Power back door main switch signal circuit Power back door main switch pushed (off) 6 V or higher
      L36-4 (DS1) - Body ground R - Body ground Back door control switch signal circuit Back door control switch on Below 1 Ω
      L36-4 (DS1) - Body ground R - Body ground Back door control switch signal circuit Back door control switch off Pulse generation
      L36-26 (BZR+) - Body ground L - Body ground Power back door warning buzzer signal input Power back door warning buzzer sounding Pulse generation
      L36-26 (BZR+) - Body ground L - Body ground Power back door warning buzzer signal input Power back door warning buzzer stopped Below 1 V
      L36-2 (DC+) - L36-1 (DC-) LA-R - LA-B Power back door lock motor circuit Power back door lock motor operating 11 to 14 V
      L36-2 (DC+) - L36-1 (DC-) LA-R - LA-B Power back door lock motor circuit Power back door lock motor stopped Below 1 V
      L36-17 (MSW) - Body ground W - Body ground Power back door main switch signal circuit Power back door main switch not pushed (on) Below 1 V
      L36-17 (MSW) - Body ground W - Body ground Power back door main switch signal circuit Power back door main switch pushed (off) Pulse generation
      L36-20 (FUL) - Body ground W - Body ground Back door courtesy switch signal circuit Back door opened Below 1 V
      L36-20 (FUL) - Body ground W - Body ground Back door courtesy switch signal circuit Back door closed Pulse generation
      L36-4 (DS1) - Body ground R - Body ground Back door control switch signal circuit Back door control switch on Below 1 V
      L36-4 (DS1) - Body ground R - Body ground Back door control switch signal circuit Back door control switch off Pulse generation
      L36-16 (PAWL) - Body ground B - Body ground Back door lock pawl switch signal circuit Back door fully open Below 1 V
      L36-16 (PAWL) - Body ground B - Body ground Back door lock pawl switch signal circuit Partially close 11 to 14 V
      L36-16 (PAWL) - Body ground B - Body ground Back door lock pawl switch signal circuit Back door fully close 11 to 14 V
      L36-16 (PAWL) - Body ground B - Body ground Back door lock pawl switch signal circuit Power back door operate stop Below 1 V
      L36-22 (HAF) - Body ground G - Body ground Back door lock half-latch switch signal circuit Back door opened Below 1 V
      L36-22 (HAF) - Body ground G - Body ground Back door lock half-latch switch signal circuit Back door closed Pulse generation
      L36-24 (POS) - Body ground B - Body ground Back door lock position switch signal circuit Back door closed Below 1 V
      L36-24 (POS) - Body ground B - Body ground Back door lock position switch signal circuit Back door opened Pulse generation
      L36-23 (CYLH) - Body ground G - Body ground Lower tail gate courtesy switch LH circuit Lower tail gate opened Below 1 V
      L36-23 (CYLH) - Body ground G - Body ground Lower tail gate courtesy switch LH circuit Lower tail gate closed Pulse generation
      L36-7 (CYRH) - Body ground P - Body ground Lower tail gate courtesy switch RH circuit Lower tail gates opened Below 1 V
      L36-7 (CYRH) - Body ground P - Body ground Lower tail gate courtesy switch RH circuit Lower tail gate closed Pulse generation

  2. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    A01WSZJE04
    Text in Illustration
    *1 Main Body ECU (Multiplex Network Body ECU) - -

    1. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH.

    2. Connect the cowl side junction block LH connectors.

    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
      A-31 (BECU) - Body ground None - Body ground Battery power supply Always 11 to 14 V
      A-30 (ACC) - Body ground None - Body ground ACC power supply Engine switch on (ACC) 11 to 14 V
      A-11 (GND1) - Body ground None - Body ground Ground Always Below 1 Ω

    4. Install the main body ECU (multiplex network body ECU).

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E117-5 (PBDS) - Body ground B - Body ground Door control switch circuit Door control switch pushed (on) Below 1 V
      E117-5 (PBDS) - Body ground B - Body ground Door control switch circuit Door control switch not pushed (off) Pulse generation