Diagnostic Aids
Refer to Testing for Electrical Intermittents and Testing for Intermittent Conditions and Poor Connections in Wiring Repairs.
Test Description
The steps below refer to test steps in the diagnostic table.
-
This step tests the battery positive voltage feed circuit for a short.
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 |
Does the sunroof open? | -- | Go to Step 5 | Go to Step 9 | |
5 | Test for a poor connection/terminal tension at the overhead console switch harness connector. Did you find and correct the condition? | -- | Go to Step 21 | Go to Step 6 |
6 | Replace the overhead console switch. Refer to Sunroof Switch Replacement . Did you complete the replacement? | -- | Go to Step 21 | -- |
Is the resistance equal to the specified value? | OL | Go to Symptoms | Go to Step 8 | |
8 | Repair short to ground in the power sunroof control module battery positive circuit. Did you find and correct the condition? | -- | Go to Step 21 | -- |
9 |
Is the resistance within the specified range? | 1-3 ohms | Go to Step 11 | Go to Step 10 |
10 | Repair the open circuit between the overhead console switch and the power sunroof control module. Did you find and correct the condition? | -- | Go to Step 21 | -- |
11 | Measure the resistance between the ground terminal of the power sunroof switch harness connector and the ground terminal of the power sunroof control module harness connector. Is the resistance within the specified range? | 1-3 ohms | Go to Step 13 | Go to Step 12 |
12 | Repair the open ground circuit between the overhead console 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 range? | 10-15 V | Go to Step 15 | Go to Step 14 |
14 | Repair the open circuit in the power sunroof control module battery positive 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 battery positive voltage and ground terminals. Is the voltage within the specified range? | 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 | -- |
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: Inspect 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 |
