Diagnostic Aids
If the sunshade switch express signal circuit is found to be short to voltage, the sunroof switch will most likely be open.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Sunroof Schematics Connector End View Reference: Sunroof Connector End Views | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | |
2 | Attempt to operate the front sunshade through its full range of functions in order to verify that the power sunshade express open/close features are inoperative. Does the front sunshade system operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Does the voltage measure near the specified value? | -- | Go to Step 4 | Go to Step 5 |
4 |
Does the voltage measure near the specified value? | B+ | Go to Step 8 | Go to Step 6 |
5 | Test the sunshade switch express signal circuit for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 7 |
6 | Inspect for poor connections at the harness connector of the sunroof switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 9 |
7 | Inspect for poor connections at the harness connectors of the front glass control module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 10 |
8 | Repair the short to voltage in the sunshade switch express signal circuit. Refer to Wiring Repairs and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 11 | -- |
9 | Replace the sunroof switch. Refer to Sunroof Switch Replacement . Did you complete the replacement? | -- | Go to Step 11 | -- |
10 | Replace the front glass control module. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you find and correct the condition? | -- | System OK | Go to Step 2 |
