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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Mirrors) >> Diagnostic Information and Procedures >> Symptoms >> Power Mirrors Inoperative

Power Mirrors Inoperative

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Power Mirrors Inoperative

Step Action Yes No
Schematic Reference: Outside Rearview Mirror Schematics 
Connector End View Reference: Mirror Connector End Views 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Place the mirror select switch in the left mirror position.
  2. Activate the mirror position switch in the UP, DOWN, LEFT and RIGHT directions and note the operation.
  3. Place the mirror select switch in the right mirror position.
  4. Activate the mirror position switch in the UP, DOWN, LEFT and RIGHT directions and note the operation.
Do both power mirrors operate properly?		 Go to Testing for Intermittent Conditions and Poor Connections Go to Step 3 
3
  1. Install a scan tool.
  2. Monitor the mirror select switch and the mirror switch data parameters.
  3. Activate the mirror select switch to the left and right mirror positions.
  4. Activate the mirror direction switch to the UP, DOWN, LEFT and RIGHT positions.
Do all of the mirror data parameters change properly with the corresponding switch activations?		 Go to Step 4  Go to Step 6 
4 With the scan tool command the inoperative mirror UP, DOWN, LEFT and RIGHT.
Does the mirror move with the corresponding scan tool command?		 Go to Step 6  Go to Step 5 
5
  1. Disconnect the inoperative mirror.
  2. Connect a test lamp between the appropriate mirror motor control circuits for the inoperative direction(s).
  3. With a scan tool, command the mirror in the inoperative direction(s).
Does the test lamp illuminate with the corresponding scan tool command?		 Go to Step 7  Go to Step 8 
6 Inspect for poor connections at the driver door module (DDM). 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 module. 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 DDM. 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 .
Did you complete the repair?		 Go to Step 12  -
11 Replace the appropriate door module. 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 2 
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