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

for Preparation Click here


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


B273265E03


INSPECTION PROCEDURE

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

1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Body / Air Conditioner / Active Test.

  1. 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
Go to step 8

C
Go to step 10
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.

  1. 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.

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

  1. 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.

  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
    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.

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

  1. 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


    B273334E01

  1. Remove the outer mirror RH (Click here).

  1. 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

    Text in Illustration 
    *a
    		Component without harness connected
    (Outer Mirror RH)



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.

  1. 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


    B273167E01

  1. Remove the outer mirror LH (Click here).

  1. 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

    Text in Illustration 
    *a
    		Component without harness connected
    (Outer Mirror LH)



NG
REPLACE OUTER MIRROR LH (Click here)
OK

REPLACE OUTER MIRROR ACTUATOR ASSEMBLY LH (Click here)