Diagnostic Aids
Refer to Testing for Electrical Intermittents and Testing for Intermittent Conditions and Poor Connections in Wiring Repairs.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Sunroof Schematics | ||||
1 | Did you perform A Diagnostic System Check - Power Sunroof? | -- | Go to Step 2 | |
2 |
Does the sunroof open to the vent position? | -- | Go to Diagnostic Aids | Go to Step 3 |
3 | Test the 20 amp RAP fuse in the rear fuse block. Was the fuse blown? | -- | Go to Step 7 | Go to Step 4 |
4 |
Does the sunroof open? | -- | Go to Step 5 | Go to Step 9 |
5 | Test for a poor connection / terminal tension at the power sunroof switch harness connector. Did you find and correct the condition? | -- | Go to Step 21 | Go to Step 6 |
6 | Replace the power sunroof switch. Refer to Sunroof Switch Replacement . Did you complete the replacement? | -- | Go to Step 21 | -- |
7 |
Is the resistance equal to the specified range? | OL | Go to Symptoms - Retained Accessory Power in Retained Accessory Power | Go to Step 8 |
8 | Repair short to ground in the power sunroof control module RAP relay switch supply voltage circuit. Did you find and correct the condition? | -- | Go to Step 21 | -- |
9 |
Is the resistance within the specified value? | 1-3 ohms | Go to Step 11 | Go to Step 10 |
10 | Repair the open circuit in the sunroof switch open vent signal circuit between the power sunroof switch and the power sunroof control module. Did you find and correct the condition? | -- | Go to Step 21 | -- |
11 | Measure the resistance between the sunroof switch low reference terminal of the power sunroof switch harness connector and the sunroof switch low reference terminal of the power sunroof control module harness connector. Is the resistance within the specified value? | 1-3 ohms | Go to Step 13 | Go to Step 12 |
12 | Repair the open sunroof switch low reference circuit between the power sunroof switch and the power sunroof control module. Did you find and correct the condition? | -- | Go to Step 21 | -- |
13 |
Is the voltage within the specified value? | 10-15 V | Go to Step 15 | Go to Step 14 |
14 | Repair the open circuit in the power sunroof control module RAP relay switch supply voltage circuit. Did you find and correct the condition? | -- | Go to Step 21 | -- |
15 | Measure the voltage between the power sunroof control module 4-wire harness connector RAP relay switch supply voltage and ground terminals. Is the voltage within the specified value? | 10-15 V | Go to Step 17 | Go to Step 16 |
16 | Repair an open circuit in the power sunroof control module ground circuit. Did you find and correct the condition? | -- | Go to Step 21 | -- |
17 |
Ignoring polarity, is the voltage within the specified range? | 10-15 V | Go to Step 19 | Go to Step 18 |
18 | Test for an open in the 2-wire Power Sunroof Motor circuit. Did you find and correct the condition? | -- | Go to Step 21 | Go to Step 20 |
19 |
Important: Check the power sunroof assembly for binding or mechanical failure. Replace the power sunroof motor assembly. Refer to Power Sunroof Motor Replacement . Did you complete the replacement? | Go to Step 21 | -- | |
20 | Replace the power sunroof control module. Refer to Power Sunroof Express Module Replacement . Did you complete the replacement? | -- | Go to Step 21 | -- |
21 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
