POWER MIRROR CONTROL SYSTEM (w/o Memory) Mirror Heater does not Operate with Rear Defogger Switch

DESCRIPTION

When the mirror heater switch on the center cluster module circuit (air conditioner control assembly) is pressed, the operation signal is transmitted to the A/C amplifier assembly through a LIN communication line. When the A/C amplifier assembly receives the signal, it turns on the No. 1 integration relay to operate the mirror heater.

WIRING DIAGRAM

A003Z62E03

INSPECTION PROCEDURE

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    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 / Air Conditioner / Active Test.

    5. Perform an Active Test according to the display on the intelligent tester.

      Air Conditioner
      Tester Display Test Part Control Range Diagnostic Note
      Defogger Relay (Rear) Mirror heater ON / OFF Operate with Power Switch on (IG)
      Result
      Result Proceed to
      Mirror heater operations on both mirrors are not normal A
      Mirror heater operation on RH side mirror is not normal B
      Mirror heater operation on LH side mirror is not normal C

    B

    CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY - OUTER REAR VIEW MIRROR - BODY GROUND) Click here

    C

    CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY - OUTER REAR VIEW MIRROR - BODY GROUND) Click here

    A

  2. CHECK DEFOGGER SYSTEM


    1. Check the rear window defogger operation.

      OK
      The rear window defogger operates normally.

    NG

    GO TO WINDOW DEFOGGER SYSTEM Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - BODY GROUND)


    1. Disconnect the 1H and 1G connectors from the No. 1 integration relay.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1H-3 (GND2) - Body ground Always Below 1 Ω
      1G-22 (GND1) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 INTEGRATION RELAY - BODY GROUND)

    OK

  4. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - NO. 1 INTEGRATION RELAY)


    1. Disconnect 1I connector from the No. 1 integration relay.

    2. Disconnect the J6 connector from the outer rear view mirror assembly RH.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1I-2 (MHTR) - J6-4 (+) Always Below 1 Ω
      1I-2 (MHTR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - NO. 1 INTEGRATION RELAY)

    OK

  5. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - NO. 1 INTEGRATION RELAY)


    1. Disconnect the K6 outer rear view mirror assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1I-2 (MHTR) - K6-4 (+) Always Below 1 Ω
      1I-2 (MHTR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - NO. 1 INTEGRATION RELAY)

    OK

  6. REPLACE NO. 1 INTEGRATION RELAY


    1. Replace the No. 1 integration relay Click here.


    NEXT

  7. CHECK MIRROR HEATER SYSTEM


    1. Check the mirror heater system.

      OK
      Mirror heater system is normal.

    NG

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    OK

    END (NO. 1 INTEGRATION RELAY WAS DEFECTIVE)

  8. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY - OUTER REAR VIEW MIRROR - BODY GROUND)


    1. Disconnect the 1I connector from the No. 1 integration relay.

    2. Disconnect the J6 connector from the outer rear view mirror assembly RH.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1I-2 (MHTR) - J6-4 (+) Always Below 1 Ω
      J6-12 (-) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY - OUTER REAR VIEW MIRROR - BODY GROUND)

    OK

  9. CHECK OUTER MIRROR RH


    1. A003V81E01
      Text in Illustration
      *a

      Component without harness connected

      (Outer Mirror RH)

      Remove the outer mirror RH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J6-4 (+) - J6-12 (-) 25°C (77°F) 7.6 to 11.4 Ω

    NG

    REPLACE OUTER MIRROR RH (FRONT PASSENGER SIDE) Click here

    OK

    REPLACE OUTER MIRROR ACTUATOR ASSEMBLY RH Click here

  10. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY - OUTER REAR VIEW MIRROR - BODY GROUND)


    1. Disconnect the 1I connector from the No. 1 integration relay.

    2. Disconnect the K6 connector from the outer rear view mirror assembly LH.


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        1I-2 (MHTR)- K6-4 (+) Always Below 1 Ω
        K6-12 (-) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY - OUTER REAR VIEW MIRROR - BODY GROUND)

    OK

  11. CHECK OUTER MIRROR LH


    1. A003Z0XE01
      Text in Illustration
      *a

      Component without harness connected

      (Outer Mirror LH)

      Remove the outer mirror LH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K6-4 (+) - K6-12 (-) 25°C (77°F) 7.6 to 11.4 Ω

    NG

    REPLACE OUTER MIRROR LH Click here

    OK

    REPLACE OUTER MIRROR ACTUATOR ASSEMBLY LH Click here