POWER BACK DOOR SYSTEM Power Back Door Warning System does not Operate

DESCRIPTION

When the power back door warning system does not operate, one of the following may be malfunctioning: 1) power back door warning buzzer circuit, 2) wireless door lock control system or 3) power back door ECU.

WIRING DIAGRAM

A01ND8VE06

INSPECTION PROCEDURE

Note


  • The power back door warning function can be customized. Make sure the function is ON. Click here


  • The power back door system uses the CAN communication system. First, confirm that there is no malfunction in the CAN communication system. Refer to the How to Proceed with Troubleshooting procedure Click here.

PROCEDURE


  1. CHECK OPERATION


    1. Check power back door system operation.

      Result
      Result Proceed to
      Power back door warning buzzer does not operate A
      Hazard warning light does not come on* B
      Power back door warning buzzer in the power back door ECU does not operate C

      • *: w/ Power back door hazard warning light


    B

    CHECK WIRELESS DOOR LOCK CONTROL SYSTEM (HAZARD ANSWER-BACK FUNCTION) Click here

    C

    REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) Click here

    A

  2. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (POWER BACK DOOR WARNING BUZZER)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Back Door / Active Test.

    5. Perform the Active Test, use the intelligent tester to generate a control command, and check that the power back door warning buzzer sounds.

      Back Door (Power Back Door ECU (Power Back Door Motor Unit))
      Tester Display Test Part Control Range Diagnostic Note
      PBD Buzzer Power back door warning buzzer sound ON/OFF -
      OK
      The buzzer sounds normally.

    NG

    INSPECT POWER BACK DOOR WARNING BUZZER Click here

    OK

    REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) Click here

  3. INSPECT POWER BACK DOOR WARNING BUZZER


    1. A01NG0SE06
      Text in Illustration
      *1

      Component without harness connected

      (Power Back Door Warning Buzzer)

      Remove the power back door warning buzzer Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 950 to 1050 Ω

    NG

    REPLACE POWER BACK DOOR WARNING BUZZER Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (POWER BACK DOOR WARNING BUZZER - POWER BACK DOOR ECU)


    1. A01ND17E08
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Power Back Door Warning Buzzer)
      *2

      Front view of wire harness connector

      (to Power Back Door ECU)

      Disconnect the Y15 power back door warning buzzer connector and P33 power back door ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Y15-1 - P33-26 (BZR+) Always Below 1 Ω
      Y15-2 - Body ground Always Below 1 Ω
      Y15-1 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) Click here

  5. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM (HAZARD ANSWER-BACK FUNCTION)


    1. Check wireless door lock operation Click here.

      Result
      Result Proceed to
      Hazard answer-back function operates normally A
      Hazard answer-back function does not operate B

    B

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (NO ANSWER-BACK) Click here

    A

  6. REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT)


    1. Replace the power back door ECU (power back door motor unit) Click here.


    NEXT

  7. CHECK POWER BACK DOOR OPERATION


    1. Check that the power back door hazard warning lights operate normally Click here.

      OK
      The power back door hazard warning lights operate normally.

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    OK

    END (POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) WAS DEFECTIVE)