Diagnostic Aids
An intermittent or poor connection can cause the express open feature of the sunroof not to operate. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Test Description
The steps below refer to the test steps in the diagnostic table.
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Connect a 3 amp fused jumper to the open circuit and express open circuit of the Power Sunroof Slide Switch, then connect to ground for less than 1 second. If this procedure is not performed correctly, the express open command will not function.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
SCHEMATIC REFERENCE: Sunroof Schematics | ||||
1 | Did you perform the Power Sunroof Diagnostic System Check? | -- | Go to Step 2 | |
2 |
Does the sunroof open to the EXPRESS OPEN position? | -- | Go to Diagnostic Aids | Go to Step 3 |
3 |
Is the voltage within the specified range? | 10-15 V | Go to Step 5 | Go to Step 4 |
4 | Measure the voltage between the express open circuit of the Power Sunroof Slide Switch to a good ground. Is the voltage within the specified range? | 10-15 V | Go to Step 7 | Go to Step 8 |
Connect a 3 amp fused jumper between the express open and slide open circuits of the Power Sunroof Slide Switch to the ground circuit of the Power Sunroof Slide Switch for less than 1 second. Does the sunroof open to the EXPRESS OPEN position? | -- | Go to Step 9 | Go to Step 6 | |
Connect a 3 amp fused jumper wire between the express open and slide open circuits of the Power Sunroof Slide Switch to a good ground for less than 1 second. Does the sunroof open to the EXPRESS OPEN position? | -- | Go to Step 7 | Go to Step 8 | |
7 | Test the ground circuit of the Power Sunroof Slide Switch 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 13 | Go to Step 10 |
8 | Test the express open circuit of the Power Sunroof Slide Switch harness 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 13 | Go to Step 10 |
9 | Inspect for poor connections at the harness connector of the power sunroof switches. 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 13 | Go to Step 11 |
10 | Inspect for poor connections 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 13 | Go to Step 12 |
11 | Replace the Power Sunroof Slide Switch. Refer to Sunroof Switch Replacement . Did you complete the replacement? | -- | Go to Step 13 | -- |
12 | Replace the Sunroof Control Module. Refer to Power Sunroof Express Module Replacement . Did you complete the replacement? | -- | Go to Step 13 | -- |
13 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
