Express 1500 RWD V6-4.3L VIN X (2005)
Heated Glass Element: Symptom Related Diagnostic Procedures
A Symptoms
SYMPTOMS
IMPORTANT: For the inside rearview mirror or the rear window defogger, review the system operation in order to familiarize yourself with the system
functions. Refer to the following:
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Rear Window Defogger Description and Operation
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Automatic Day-Night Mirror Description and Operation
Visual/Physical Inspection
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Inspect for aftermarket devices which could affect the operation of the rear window defogger or the inside rearview mirror.
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Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
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Defogger Inoperative - Rear Window
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Defogger Indicator Always On
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Defogger Grid Lines Diagnosis
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Mirrors - Automatic Day-Night Inoperative
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Mirrors - Temperature Displays SC or OC
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Mirrors - Compass Display Inoperative or Inaccurate
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Mirrors - Temperature Display Inaccurate
Automatic Day/Night Mirror Inoperative - Mirrors
MIRRORS - AUTOMATIC DAY-NIGHT INOPERATIVE
DIAGNOSTIC AIDS
The automatic day-night feature of the inside rearview mirror may not operate properly or become inoperative due to an intermittent short to battery
voltage in the backup lighting system.
TEST