Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Sunroof Schematics Connector End View Reference: Power Roof Systems Connector End Views | ||||
1 | Did you review the Power Sunroof Description and Operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms - Roof |
2 | Operate the power sunroof. Does the system operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the voltage measure near the specified value? | B+ | Go to Step 4 | Go to Step 6 |
4 | Measure the voltage from the sunroof limit switch 2 signal circuit at the sunroof motor harness connector to a good ground. Does the voltage measure near the specified voltage. | B+ | Go to Step 5 | Go to Step 7 |
5 | Measure the voltage from the sunroof limit switch 2 signal circuit and the sunroof limit switch low reference circuit at the sunroof motor harness connector. Does the voltage measure near the specified voltage? | B+ | Go to Step 10 | Go to Step 8 |
6 | Test the sunroof limit switch 1 signal circuit for an open, high resistance or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 13 | Go to Step 9 |
7 | Test the sunroof limit switch 2 signal circuit for an open, high resistance or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 13 | Go to Step 9 |
8 | Repair the sunroof limit switch low reference circuit for an open or high resistance between the sunroof motor and splice. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 13 | -- |
9 | Inspect for poor connections at the sunroof switch assembly. 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 sunroof motor. 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 courtesy/reading lamp assembly that contains the sunroof switch assembly. Refer to Sunroof Switch Replacement . Did you complete the replacement? | -- | Go to Step 13 | -- |
12 | Replace the sunroof motor. Refer to Sunroof Motor/Actuator Replacement . Did you complete the replacement? | -- | Go to Step 13 | -- |
13 |
Did you correct the condition? | -- | System OK | Go to Step 3 |
