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Power Mirrors - Folding 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.
Power Mirrors - Folding 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
  1. Turn ON the ignition, with the engine OFF.
  2. Activate the mirror fold switch in the extend and retract positions.
Do the outside rearview mirrors extend and retract with the corresponding switch activation?		 Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Are both folding mirrors inoperative? Go to Step 3  Go to Step 7 
4
  1. Install a scan tool.
  2. Monitor the mirror select switch and the mirror switch horizontal data parameters.
  3. Activate fold from the mirror select switch.
  4. Activate the extend and retract functions from the mirror horizontal switch.
Do all of the data parameters change with the corresponding switch activations?		 Go to Step 8  Go to Step 5 
5 Do any of the data parameters change with the corresponding switch activations? Go to Step 10  Go to Step 6 
6
  1. Connect a test lamp to a good ground.
  2. Backprobe the switch power circuit at the power mirror switch harness connector.
Does the test lamp illuminate?		 Go to Step 10  Go to Step 8 
7
  1. Install a scan tool.
  2. With the scan tool, command the inoperative mirror to retract and extend.
Does the mirror move with the corresponding scan tool command?		 Go to Step 11  Go to Step 9 
8 Inspect for poor connections at the driver 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 16  Go to Step 12 
9 Inspect for poor connections at the power 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 16  Go to Step 13 
10 Inspect for poor connections at the power mirror switch. 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 16  Go to Step 14 
11 Inspect for poor connections at 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 16  Go to Step 15 
12
IMPORTANT: Perform the set up procedure for the driver door module. Refer to DCM Programming/RPO Configuration .
Replace the driver door module. Refer to Switch Replacement - Door Lock and Side Window - Driver .Did you complete the repair?		 Go to Step 16  -
13 Replace the power mirror. Refer to Mirror Replacement 
Did you complete the repair?		 Go to Step 16  -
14 Replace the power mirror switch. Refer to Power Mirror Switch Replacement .
Did you complete the repair?		 Go to Step 16  -
15
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 repair?		 Go to Step 16  -
16 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 3 
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