Inspection Procedure 7: None of the heated door mirrors operate
TECHNICAL DESCRIPTION (COMMENT)
The heated door mirrors should work when the rear defogger switch is turned on. If the mirror heater does not work for the specified period, the defogger relay circuit (heated door mirror power supply circuit) may be defective.
TROUBLESHOOTING HINTS
Damaged harness wires and connectors
DIAGNOSIS
Required Special Tools:
MB991223: Test Harness Set
STEP 1. Check the rear window defogger.
Check that the rear window defogger system should work normally (Refer to GROUP 54A, Printed heater check ).
Is the check result normal?
Intermittent malfunction. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points, - How to Cope with Intermittent Malfunctions .
Carry out the troubleshooting for the rear window defogger (Refer to GROUP 54A, Troubleshooting ).
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).
Intermittent malfunction. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points, - How to Cope with Intermittent Malfunctions 
Carry out the troubleshooting for the rear window defogger (Refer to GROUP 54A, Troubleshooting