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

DESCRIPTION

The rear door ECU RH receives lock/unlock switch signals and activates the door lock motor according to these signals.

WIRING DIAGRAM

A000ZA8E11

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (REAR DOOR LOCK RH)


    1. Select the Active Test, use the intelligent tester to generate a control command, and then check the door lock motor function.

      Rear Right Door (Rear door ECU RH)
      Tester Display Test Part Control Range Diagnostic Note
      Door Lock Operate door lock motor LOCK or UNLOCK -
      OK
      Rear door lock RH operates normally.

    NG

    INSPECT FUSE (P RR DOOR or D RR DOOR) Click here

    OK

  2. READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)


    1. Use the Data List to check if the door lock position switch is functioning properly.

      Rear Right Door (Rear door ECU RH)
      Item Measurement Item/Range Normal Condition Diagnostic Note
      Lock Position SW Rear RH side door lock position switch signal/ON or OFF

      ON: Rear RH side door is unlocked

      OFF: Rear RH side door is locked

      		 -
      OK
      On tester screen, item changes between ON and OFF according to above chart.

    NG

    INSPECT REAR DOOR LOCK ASSEMBLY RH (DOOR LOCK POSITION SWITCH) Click here

    OK

  3. CHECK REAR DOOR ECU RH (OPERATION)


    1. Replace the rear door ECU RH with a normally functioning one Click here.

    2. Check that all doors can be locked and unlocked by using the master switch.

      OK
      All doors can be locked and unlocked with master switch.

    OK

    END (REAR DOOR ECU RH IS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU

  4. INSPECT FUSE (P RR DOOR or D RR DOOR)


    1. Remove the P RR DOOR*1 or D RR DOOR*2 fuse from the passenger side junction block.

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

      Standard resistance
      Tester Connection Condition Specified Condition

      P RR DOOR fuse*1

      D RR DOOR fuse*2

      		 Always Below 1 Ω

      Tech Tips

      *1: for LHD

      *2: for RHD


    NG

    REPLACE FUSE

    OK

  5. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU RH - BATTERY)

    A000UXWE02
    *1 Front view of wire harness connector: (to Rear Door ECU RH)

    1. Disconnect the O3 ECU connector.

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

      Standard voltage
      Tester Connection Condition Specified Condition
      O3-6 (BDR) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT REAR DOOR LOCK ASSEMBLY RH

    A000YUZE02

    1. Apply battery voltage to the door lock motor and check the operation of the door lock motor.

      OK
      w/o Double Locking System
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal O11-4 (L)

      Battery negative (-) → Terminal O11-1 (UL)

      		 Lock

      Battery positive (+) → Terminal O11-1 (UL)

      Battery negative (-) → Terminal O11-4 (L)

      		 Unlock
      w/ Double Locking System
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal O11-4 (L)

      Battery negative (-) → Terminal O11-3 (UL)

      		 Lock

      Battery positive (+) → Terminal O11-3 (UL)

      Battery negative (-) → Terminal O11-4 (L)

      		 Unlock

    NG

    REPLACE REAR DOOR LOCK ASSEMBLY RH Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU RH - REAR DOOR LOCK RH)

    A000TSJE02

    1. Disconnect the O4 ECU connector.

    2. Disconnect the O11 door lock connector.

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

      Standard resistance
      w/o Double Locking System
      Tester Connection Condition Specified Condition
      O4-1 (A-) - O11-1 (UL) Always Below 1 Ω
      O4-2 (A+) - O11-4 (L) Always Below 1 Ω
      O4-1 (A-) - Body ground Always 10 kΩ or higher
      O4-2 (A+) - Body ground Always 10 kΩ or higher
      w/ Double Locking System
      Tester Connection Condition Specified Condition
      O4-1 (A-) - O11-3 (UL) Always Below 1 Ω
      O4-2 (A+) - O11-4 (L) Always Below 1 Ω
      O4-1 (A-) - Body ground Always 10 kΩ or higher
      O4-2 (A+) - Body ground Always 10 kΩ or higher

    OK

    REPLACE REAR DOOR ECU RH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. INSPECT REAR DOOR LOCK ASSEMBLY RH (DOOR LOCK POSITION SWITCH)

    A000VX5E02

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

      Standard resistance
      w/o Double Locking System
      Tester Connection Switch Condition Specified Condition
      O11-6 (LSSR) - O11-9 (E) Unlock Below 1 Ω
      O11-6 (LSSR) - O11-9 (E) Lock 10 kΩ or higher
      w/ Double Locking System
      Tester Connection Switch Condition Specified Condition
      O11-9 (LSSR) - O11-10 (E) Unlock Below 1 Ω
      O11-9 (LSSR) - O11-10 (E) Lock 10 kΩ or higher

    NG

    REPLACE REAR DOOR LOCK ASSEMBLY RH Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU RH - REAR DOOR LOCK RH)

    A000TW9E02

    1. Disconnect the O4 ECU connector.

    2. Disconnect the O11 door lock connector.

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

      Standard resistance
      w/o Double Locking System
      Tester Connection Condition Specified Condition
      O4-14 (LSW) - O11-6 (LSSR) Always Below 1 Ω
      O4-23 (LSWE) - O11-9 (E) Always Below 1 Ω
      O4-14 (LSW) - Body ground Always 10 kΩ or higher
      O4-23 (LSWE) - Body ground Always 10 kΩ or higher
      w/ Double Locking System
      Tester Connection Condition Specified Condition
      O4-14 (LSW) - O11-9 (LSSR) Always Below 1 Ω
      O4-23 (LSWE) - O11-10 (E) Always Below 1 Ω
      O4-14 (LSW) - Body ground Always 10 kΩ or higher
      O4-23 (LSWE) - Body ground Always 10 kΩ or higher

    OK

    REPLACE REAR DOOR ECU RH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR