Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you review the power sunroof system operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms |
2 | Verify that the sunroof is inoperative. Does the sunroof operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Is the voltage within the specified range? | B+ | Go to Step 4 | Go to Step 5 |
4 | Using a J 39200 DMM measure the voltage between CKT 1001 (YEL) or 1001 (DK GRN) and CKT 1850 (BLK). Refer to Circuit Testing in Wiring Systems. Is the voltage within the specified range? | B+ | Go to Step 7 | Go to Step 6 |
5 | Repair the open, high resistance or short to ground in CKT 1001 (YEL) or 1001 (DK GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 18 | -- |
6 | Repair the open, high resistance or short to ground in CKT 1850 (BLK). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 18 | -- |
7 |
Is continuity present? | -- | Go to Step 8 | Go to Step 9 |
8 | Using a J 39200 DMM, measure the continuity from cavity 3 (DK BLU) and cavity 5 (ORN) while depressing the switch in the CLOSE position. Refer to Circuit Testing in Wiring Systems. Is continuity present? | -- | Go to Step 12 | Go to Step 10 |
9 | Inspect for an open, high resistance or short to ground in the BRN and DK BLU wires from the sunroof control switch to the sunroof module connector C2. Refer to Circuit Testing in Wiring Systems. Did you locate and repair an open circuit? | -- | Go to Step 18 | Go to Step 11 |
10 | Inspect for an open, high resistance or short to ground in the DK/BLU and ORN wires from the sunroof control switch to sunroof module connector C2 . Refer to Circuit Testing in Wiring Systems Did you locate and repair an open circuit? | -- | Go to Step 18 | Go to Step 11 |
11 | Replace the sunroof control switch. Refer to Driver Information Center Module Replacement in Instrument Panel, Gauges and Console. Is the repair complete? | -- | Go to Step 18 | -- |
12 | Inspect BLK/WHT, WHT, RED and BLK for an open, high resistance or short to ground. Refer to Circuit Testing in Wiring Systems. | -- | Go to Step 13 | Go to Step 14 |
13 | Repair the open, high resistance or short to ground in BLK/WHT, WHT, RED and BLK. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 21 | -- |
14 |
Is continuity present? | -- | Go to Step 16 | Go to Step 15 |
15 | Replace the sunroof module. Refer to Power Sunroof Module Replacement Is the repair complete? | -- | Go to Step 21 | -- |
16 |
Does the test lamp illuminate? | -- | Go to Step 18 | Go to Step 17 |
17 | Replace the sunroof module. Refer to Power Sunroof Module Replacement Is the repair complete? | -- | Go to Step 21 | -- |
18 | Inspect for an open, high resistance or short to ground in DK GRN and LT GRN wires. Refer to Circuit Testing in Wiring Systems. Was a problem found? | -- | Go to Step 19 | Go to Step 20 |
19 | Repair the open, high resistance or short to ground in the DK GRN or LT GRN wire. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 21 | -- |
20 | Replace the sunroof motor. Refer to Power Sunroof Motor Replacement . Is the repair complete? | -- | Go to Step 21 | -- |
21 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
