Test Description
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic table.
- 2: If the system does close properly, then suspect either the sunroof limit switch soft stop signal circuit or the sunroof limit switch low reference circuit for a poor connection or intermittent.
Power Sunroof Does Not Close
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Power Sunroof Schematics Connector End View Reference: Power Roof Systems Connector End Views DEFINITION: Sunroof does not automatically stop in the flush closed position. |
||||
| 1 | Did you perform the Power Sunroof Diagnostic System Check? | - | Go to Step 2 | Go to Diagnostic System Check - Power Sunroof |
| 2 | Operate the power sunroof to the close position. Does the system close properly? |
- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 |
|
B+ | Go to Step 5 | Go to Step 4 |
| 4 |
|
B+ | Go to Step 12 | Go to Step 9 |
| 5 | Measure the reference voltage between the sunroof limit switch soft stop signal circuit and the sunroof limit switch low reference circuit of the limit switch harness connector. Does the voltage measure near the specified value? |
B+ | Go to Step 6 | Go to Step 7 |
| 6 | While measuring the reference voltage between the sunroof limit switch soft stop signal circuit and the sunroof limit switch low reference circuit, toggle the sunroof switch to slide the sunroof glass in small increments, back and forth through the flush closed position. Did the voltage measure near the specified value as the sunroof past through the flush closed position? |
0V | Go to Step 13 | Go to Step 10 |
| 7 | Test the sunroof limit switch low reference for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 8 |
| 8 | Inspect the sunroof limit switch low reference circuit for a poor connection. 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 14 | Go to Step 13 |
| 9 | Test the sunroof limit switch soft stop signal circuit for an open, high resistance or short to ground. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 14 | Go to Step 11 |
| 10 | Inspect the limit switch connector for a poor connection. 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 14 | Go to Step 12 |
| 11 | Inspect the limit switch soft stop signal circuit for a poor connection. 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 14 | Go to Step 13 |
| 12 | Replace the sunroof motor. Refer Sunroof Motor/Actuator Replacement . Did you complete the replacement? |
- | Go to Step 14 | - |
| 13 | Replace the sunroof module. Refer to Sunroof Control Module Replacement . Did you complete the replacement? |
- | Go to Step 14 | - |
| 14 |
|
- | System OK | Go to Step 3 |