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INSPECTION PROCEDURE 7: None of the Heated Door Mirrors Operate
 
 


 
 
CIRCUIT OPERATION
If both of the door mirror heaters do not operate normally it may be due to a malfunction in the rear window defogger system.
 
 
TROUBLESHOOTING HINTS
  • Malfunction of the rear window defogger system
  • The wiring harness or connectors may have loose, corroded or damaged terminals, or terminals pushed back in the connector.
 
 
DIAGNOSIS
Required Special Tools:
  • MB991223: Harness Set
  • MB992006: Extra Fine Probe
STEP 1. Check the rear window defogger.
Check that the rear window defogger works normally as follows.
(1) Turn the ignition switch to the "ON" position.
(2) Push the rear window defogger switch to operate the defogger.
Does the defogger work normally?
Go to Step 2.
Because of malfunction of the rear window defogger, carry out the troubleshooting (Refer to GROUP 54A, Defogger Diagnosis ).
 
STEP 2. Check the door mirror (RH) connector F-04 door mirror assembly and rear window defogger relay connector C-405 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Is the door mirror (RH) connector F-04 door mirror assembly and rear window defogger relay connector C-405 in good condition?
Go to Step 3.
Repair or replace the damaged component(s). Refer to GROUP 00E, Harness Connector Inspection . Check if the door mirrors works normally.
 
STEP 3. Check the wiring harness between the door mirror (RH) connector F-04 door mirror assembly (terminal 9) and rear window defogger relay connector C-405 (terminal 3).
noteAlso check intermediate connector C-212 for loose, corroded or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-212 is damaged, repair or replace the damaged component(s) as described in GROUP 00E, Harness Connector Inspection .
Is the wiring harness between door mirror (RH) connector F-04 door mirror assembly (terminal 9) and rear window defogger relay connector C-405 (terminal 3) in good condition?
Go to step 4.
Repair the wiring harness as necessary. Check if all heated door mirrors work normally.
 
STEP 4. Check door mirror (LH) connector F-01 door mirror assembly.
Is the door mirror (LH) connector F-01 door mirror assembly in good condition?
Go to Step 5.
Repair or replace the damaged component(s). Check if all heated door mirrors work normally.
 
STEP 5. Check the wiring harness between door mirror (LH) connector F-01 (terminal 9) and rear window defogger relay connector C-405 (terminal 3).
noteAlso check intermediate connector C-225 for loose, corroded or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-225 is damaged, repair or replace the damaged component(s) as described in GROUP 00E, Harness Connector Inspection .
Is the wiring harness between door mirror (RH) connector F-01 door mirror assembly (terminal 9) and rear window defogger relay connector C-405 (terminal 3) in good condition?
The procedure is complete.
Repair the wiring harness as necessary. Check if the all heated door mirrors work normally.