Diagnostic Aids
The sunroof opening position switch soft stop signal circuit can cause the sunroof not to respond correctly, if it were an open. 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 to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Sunroof Schematics Connector End View Reference: Power Roof Systems Connector End Views DEFINITION: The sunroof glass will only move slightly in between the vent and closed position. | ||||
1 | Did you review the Power Sunroof Description and Operation? | -- | Go to Step 2 | Go to Symptoms - Roof |
2 | Operate the power sunroof system. Does the system operate normally? | -- | Go to Diagnostic Aids | Go to Step 3 |
3 | Measure the reference voltage of the sunroof opening position switch soft stop signal circuit at the sunroof harness connector to a good ground. Does the reference voltage measure near the specified value? | 4.5-5.5 V | Go to Step 5 | Go to Step 4 |
4 | Test the sunroof opening position switch soft stop signal circuit 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 9 | Go to Step 6 |
5 | Inspect for a poor connection at the harness connector of the sunroof opening position switch. 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 9 | Go to Step 7 |
6 | Inspect for poor connection at the harness connector of the sunroof control module. 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 9 | Go to Step 8 |
7 | Replace the sunroof opening position switch. Refer to Sunroof Opening Position Switch Replacement . Did you complete the replacement? | -- | Go to Step 9 | -- |
8 | Replace the sunroof control module. Refer to Sunroof Control Module Replacement . Did you complete the replacement? | -- | Go to Step 9 | -- |
9 |
Did you correct the condition? | -- | System OK | Go to Step 2 |
