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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1393 (Door System, Mirror System & Window System) >> Diagnostic Information and Procedures >> Heated Mirrors Inoperative

Heated Mirrors Inoperative

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Heated Mirrors Inoperative

Step Action Yes No
Schematic Reference:  Outside Mirror Schematics  
1 Did you perform the Door Systems Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Door Systems 
2 Verify the heated mirrors inoperative fault is present.
Do the heated mirrors operate normally?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Does the rear window defogger operate properly? Go to Step 4  Go to Symptoms - Stationary Windows
4
  1. Disconnect the appropriate mirror.
  2. Start the engine.
  3. Connect a test lamp between the mirror heater control and the mirror heater ground circuit pins of the appropriate door module.
  4. Activate the rear window defogger switch.
Does the test lamp illuminate?
Go to Step 5  Go to Step 6 
5 Inspect for poor connections at the harness connector of the outside rearview mirror. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9  Go to Step 7 
6 Inspect for poor connections at the harness connector of the appropriate door module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9  Go to Step 8 
7 Replace the appropriate outside rearview mirror face. Refer to Mirror Face Replacement .
Did you complete the replacement?
Go to Step 9  -
8
IMPORTANT: Perform the set up procedure for the appropriate door module. Refer to DCM Programming/RPO Configuration .
Replace the appropriate door module. Refer to Switch Replacement - Door Lock and Side Window - Driver  or Switch Replacement - Door Lock and Side Window - Passenger .Did you complete the replacement?
Go to Step 9  -
9 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2