Mirror Heater Does Not Operate With Rear Defogger Switch

MIRROR (EXT): POWER MIRROR CONTROL SYSTEM: Mirror Heater does not Operate with Rear Defogger Switch
- Mirror Heater does not Operate with Rear Defogger Switch

DESCRIPTION

When the rear window defogger switch on the air conditioning control panel assembly is pressed, the operation signal is transmitted to the air conditioning amplifier assembly through a LIN communication line. When the air conditioning amplifier assembly receives the signal, it turns on the integration relay to operate the mirror heater.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
* Inspect the fuses for circuits related to this system before performing the following inspection procedure.
* If the auxiliary battery voltage becomes low, mirror heater operation is canceled to prioritize supplying power to the power steering system.

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

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical /Air Conditioner / Active Test.

(e) Perform an Active Test according to the display on the Techstream.

Air Conditioner





Result:





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

C -- CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - OUTER REAR VIEW MIRROR ASSEMBLY LH)
A -- Continue to next step.

2. CHECK DEFOGGER SYSTEM

(a) Check rear window defogger operation.

OK:

The rear window defogger operates normally.

NG -- GO TO WINDOW DEFOGGER SYSTEM Problem Symptoms Table
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY - BODY GROUND)

(a) Disconnect the integration relay connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY - INTEGRATION RELAY)

(a) Disconnect the integration relay connector.

(b) Disconnect the outer rear view mirror assembly LH connector.

(c) Disconnect the outer rear view mirror assembly RH connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE NO. 1 INTEGRATION RELAY Removal

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

(a) Disconnect the integration relay connector.

(b) Disconnect the outer rear view mirror assembly LH connector.

(c) Disconnect the outer rear view mirror assembly RH connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Removal

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

(a) Disconnect the integration relay connector.

(b) Disconnect the outer rear view mirror assembly LH connector.

(c) Disconnect the outer rear view mirror assembly RH connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH Removal