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1 Did you perform the Door Systems Diagnostic - Go to Step 2 Go to Diagnostic System Check - Door Systems 2 1. Install a scan tool. 2. Turn ON the ignition, with the engine OFF. 3. With the scan tool, observe the mirror horizontal and vertical position 4. Operate both the left and right mirrors through the full range of movements. Does the scan tool indicate that the left and right 0.50- 4.75 V Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 3 Is there a horizontal and vertical DTC set on the - Go to Step 6 Go to Step 4 4 1. Turn OFF the ignition. 2. Disconnect the appropriate mirror. 3. Turn ON the ignition, with the engine OFF. 4. With a scan tool, observe the appropriate mirror position parameter. Does the scan tool indicate that the mirror 0.50 V Go to Step 5 Go to Step 8 5 1. Turn OFF the ignition. 2. Connect a 3 amp fused jumper wire between the 5 volt reference circuit and 3. Turn ON the ignition, with the engine OFF. 4. With a scan tool, observe the mirror position parameter. Does the scan tool indicate that the mirror 4.75 - 5.25 V Go to Step 12 Go to Step 9
2004 Hummer H2 2004 ACCESSORIES & EQUIPMENT Doors - Hummer H2
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