Diagnostic Aids
WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The sunroof limit switch soft stop signal circuit can cause the sunroof glass to hard stop past the soft stop open position, if it were a short to ground or a faulty limit switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. If the circuits test OK, an intermittent or poor connection can also cause the sunroof not to operate normally. Refer toTesting for Intermittent Conditions and Poor Connections in Wiring Systems.
Power Sunroof Does Not Open to Express Position
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Power Sunroof Schematics Connector End Views Reference: Power Roof Systems Connector End Views DEFINITION: The sunroof will hard stop past the full open soft stop position. |
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| 1 | Did you review the Power Sunroof Description and Operation and perform the necessary inspections? | - | Go to Step 2 | Go to Symptoms - Roof |
| 2 |
NOTE:
Do not open the sunroof glass past the full open soft stop position. Doing so may damage the sunroof assembly and or the roof top. Operate the power sunroof.Does the system operate normally? |
- | Go to Diagnostic Aids | Go to Step 3 |
| 3 |
|
1 3 Ω | Go to Step 5 | Go to Step 4 |
| 4 | Test the sunroof limit switch soft stop signal circuit for a short to ground. Did you find and correct the condition? |
- | Go to Step 7 | Go to Step 6 |
| 5 | Replace the sunroof limit switch. Refer to Sunroof Motor/Actuator Replacement . Did you complete the replacement? |
- | Go to Step 7 | - |
| 6 | Replace the sunroof control module. Refer to Sunroof Control Module Replacement . Did you complete the replacement? |
- | Go to Step 7 | - |
| 7 |
|
- | System OK | Go to Step 3 |