POWER DOOR LOCK CONTROL SYSTEM Only Driver Door LOCK / UNLOCK Functions do not Operate

DESCRIPTION

The main body ECU (instrument panel junction block) receives lock/unlock switch signals and activates the door lock motor according to these signals.

WIRING DIAGRAM

A017CBFE22
A017FBXE02

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT FRONT DOOR LOCK ASSEMBLY


    1. Remove the front driver side door lock assembly Click here.

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

      A017B20E01
      Standard resistance
      Tester Connection Measurement Condition Door Lock Condition Specified Condition
      7 - 8

      Battery positive (+) → Terminal 4

      Battery negative (-) → Terminal 1

      		 Locked 10 kΩ or higher
      7 - 8

      Battery positive (+) → Terminal 1

      Battery negative (-) → Terminal 4

      		 Unlocked Below 1 Ω

    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK MOTOR CIRCUIT)


    1. for LHD:


      1. Disconnect the instrument panel junction block connector.

        A017F9HE01

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

        Standard resistance
        Tester Connection Condition Specified Condition
        H6-1 (UL) - 1J-2 Always Below 1 Ω
        H6-4 (L) - 1K-2 Always Below 1 Ω
        H6-1 (UL) - Body ground Always 10 kΩ or higher
        H6-4 (L) - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the main body ECU (instrument panel junction block) connector.

      2. Disconnect the instrument panel junction block connector.

        A017F8KE01

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

        Standard resistance
        Tester Connection Condition Specified Condition
        G8-1 (UL) - D7-5 (ACTD) Always Below 1 Ω
        G8-4 (L) - 1J-1 Always Below 1 Ω
        G8-1 (UL) - Body ground Always 10 kΩ or higher
        G8-4 (L) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (DOOR UNLOCK DETECTION SWITCH CIRCUIT)


    1. for LHD:


      1. Measure the resistance according to the value(s) in the table below.

        A017BBAE17
        Standard resistance
        Tester Connection Condition Specified Condition
        H6-8 (LSSR) - D7-9 (LSWD) Always Below 1 Ω
        H6-8 (LSSR) - Body ground Always 10 kΩ or higher
        H6-7 (E) - Body ground Always Below 1 Ω

    2. for RHD:


      1. Measure the resistance according to the value(s) in the table below.

        A017BBAE18
        Standard resistance
        Tester Connection Condition Specified Condition
        G8-7 (LSSR) - D7-9 (LSWD) Always Below 1 Ω
        G8-7 (LSSR) - Body ground Always 10 kΩ or higher
        G8-8 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)