Power Mirrors - Folding Inoperative

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: Outside Rearview Mirror Schematics
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Turn ON the ignition, with the engine OFF. Place the mirror select switch in the neutral/fold position. 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	Go to Step 3
3	Are both folding mirrors inoperative?	Go to Step 4	Go to Step 5
4	Install a scan tool. Monitor the Mirror Select Switch and the Mirror Switch Data parameters. Activate the mirror select switch left, right and neutral/fold positions. 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	Install a scan tool. 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 8	Go to Step 7
6	Inspect for poor connections at the driver door switch (DDS). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . 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 . Did you find and correct the condition?	Go to Step 12	Go to Step 10
8	Inspect for poor connections at the appropriate door switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 12	Go to Step 11
9	Replace the DDS. Refer to Control Module References for replacement, setup, and programming. Did you complete the repair?	Go to Step 12	-
10	Replace the power mirror. Refer to Mirror Replacement - Power . Did you complete the repair?	Go to Step 12	-
11	Replace the appropriate door switch. Refer to Control Module References for replacement, setup, and programming. 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