Power Roof Inoperative
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Power Roof Inoperative Diagnostic Test
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Retractable Roof Schematics , and Body Rear End Schematics
in Body Rear End Connector End View Reference: Power Roof Systems Connector End Views , and Body Rear End Connector End Views in Body Rear End |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Power Roof |
| 2 | Verify that the power roof is inoperative. Does the power roof operate normally? |
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Does the endgate window operate normally? | Go to Step 4 | Go to Endgate Power Window Inoperative in Body Rear End |
| 4 | Is the power roof inoperative from both the overhead console switch and the endgate key cylinder switch? | Go to Step 6 | Go to Step 5 |
| 5 | Is the power roof inoperative from the overhead console switch only? | Go to Step 7 | Go to Step 8 |
| 6 |
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Go to Step 9 | Go to Step 11 |
| 7 |
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Go to Step 19 | Go to Step 9 |
| 8 |
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Go to Step 14 | Go to Step 10 |
| 9 |
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Go to Step 19 | Go to Step 13 |
| 10 |
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Go to Step 20 | Go to Step 15 |
| 11 |
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Go to Step 16 | Go to Step 12 |
| 12 | Test the power roof motor control circuits for an open or short to ground. Refer to Circuit Testing
and to Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 26 | Go to Step 19 |
| 13 | Test the overhead console power roof switch signal circuits for an open or high resistance. Refer to Circuit Testing
and to Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 26 | Go to Step 17 |
| 14 | Test the endgate key cylinder switch signal circuits for a short to ground or short to voltage. Refer to Circuit Testing
and to Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 26 | Go to Step 20 |
| 15 | Test the endgate key cylinder switch signal circuits for an open or high resistance. Refer to Circuit Testing
and to Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 26 | Go to Step 18 |
| 16 | Inspect for poor connections at the harness connector of the power roof motor. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 26 | Go to Step 21 |
| 17 | Inspect for poor connections at the harness connector of the overhead console power roof switch. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 26 | Go to Step 22 |
| 18 | Inspect for poor connections at the harness connector of the endgate key cylinder switch. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 26 | Go to Step 23 |
| 19 | Inspect for poor connections at the harness connector of the power roof module. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 26 | Go to Step 24 |
| 20 | Inspect for poor connections at the harness connector of the endgate module. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 26 | Go to Step 25 |
| 21 |
|
Go to Step 26 | - |
| 22 | Replace the power roof switch. Refer to Switch Assembly Replacement - Endgate Window, Midgate Window and Rear Moveable Roof - Overhead Console
in Body Rear End. Did you complete the replacement? |
Go to Step 26 | - |
| 23 | Replace the endgate key cylinder switch. Refer to Lock Cylinder Replacement - Endgate
in Body Rear End. Did you complete the replacement? |
Go to Step 26 | - |
| 24 | Replace the power roof module. Refer to Moveable Roof Panel Control Module Replacement . Did you complete the replacement? |
Go to Step 26 | - |
| 25 | Replace the endgate module. Refer to Liftgate Control Module Replacement
and to Liftgate Control Module Programming
in Body Rear End. Did you complete the replacement? |
Go to Step 26 | - |
| 26 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |