WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Entry and Start System) No Answer-back

DESCRIPTION

In some cases, wireless door lock control functions are normal but the hazard warning light answer-back function does not operate. In such cases, hazard warning light signal circuit may be malfunctioning.

WIRING DIAGRAM

A01BH0QE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS


    1. Check that the wireless door lock functions using the door control transmitter assembly Click here.

      OK
      The wireless door lock functions using the door control transmitter assembly are normally.

    NG

    GO TO OTHER FLOWCHART (Only Wireless Control Function is Inoperative) Click here

    OK

  2. CHECK HAZARD WARNING LIGHTS


    1. Check that the hazard warning lights blink when the hazard warning signal switch assembly is pressed.

      OK
      Hazard warning lights flash continuously.

    NG

    GO TO LIGHTING SYSTEM Click here

    OK

  3. INSPECT FRONT DOOR LOCK ASSEMBLY (UNLOCK DETECTION SWITCH)


    • *1: for LHD

    • *2: for RHD


    1. Remove the front door lock assembly LH*1 or RH*2 Click here

    2. Inspect the front door lock assembly LH*1 or RH*2 Click here


    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY [BODY ECU] - FRONT DOOR LOCK ASSEMBLY AND BODY GROUND)


    1. Disconnect the H7 instrument panel junction block assembly (body ECU) connector.

    2. Disconnect the L1*1 or K1*2 front door lock assembly connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      H7-4 (LSWD) - L1-7(LSSR) Always Below 1 Ω
      L1-8 (E) - Body ground Always Below 1 Ω
      H7-4 (LSWD) or L1-7(LSSR) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      H7-4 (LSWD) - K1-7(LSSR) Always Below 1 Ω
      K1-8 (E) - Body ground Always Below 1 Ω
      H7-4 (LSWD) or K1-7(LSSR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY [BODY ECU] - COMBINATION METER ASSEMBLY)


    1. Disconnect the H7 instrument panel junction block assembly connector.

    2. Disconnect the H20 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H7-6 (HAZ) - H20-26 (HAZ) Always Below 1 Ω
      H7-6 (HAZ) or H20-26 (HAZ) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (BODY ECU)