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Power Mirrors - Folding Inoperative

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. 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  
Connector End View Reference: Power Door Systems Connector End Views  
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. Place the mirror select switch in the neutral fold position.
  3. Activate the mirror direction switch in the left/extend and right/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 4  Go to Step 5 
4
  1. Install a scan tool.
  2. Monitor the mirror select switch and the mirror switch data parameters.
  3. Activate the mirror select switch left, right and neutral/fold positions.
  4. Activate the left/extend and right/retract functions from the mirror switch.
Do all of the data parameters change with the corresponding switch activations?		 Go to Step 5  Go to Step 6 
5
  1. Install a scan tool.
  2. With the scan tool, observe the Mirror Folding Operation data parameter in the appropriate door module data list.
  3. Command the inoperative mirror to retract and extend using the mirror switch.
Does the Mirror Folding Operation data parameter change states with the corresponding command?		 Go to Step 7  Go to Step 8 
6 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 12  Go to Step 9 
7 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 12  Go to Step 10 
8 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 12  Go to Step 11 
9
IMPORTANT: Perform the set up procedure for the driver door module. Refer to Service Programming System (SPS) in Programming.
Replace the driver door module. Refer to Switch Replacement - Door Lock and Side Window - Driver .Did you complete the repair?		 Go to Step 12  -
10 Replace the power mirror. Refer to Mirror Replacement (Manual) Mirror Replacement (Power Mirror) .
Did you complete the repair?		 Go to Step 12  -
11
IMPORTANT: Perform the set up procedure for the appropriate door module. Refer to Service Programming System (SPS) in Programming.
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 12  -
12 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 3 
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