Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
|
Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open. | ||||
1 |
Are all of the code setting conditions corrected? | -- | Go to Step 2 | Go to Step 3 |
2 |
Do the fog lamps light? | -- | Go to Step 4 | Go to Step 5 |
3 | Correct all code setting conditions that exist. Is the repair complete? | -- | Go to Step 1 | -- |
4 | Backprobe the BCM connector C3 using a fused jumper between terminal A4 and ground. Is the fog lamp ON input received by the scan tool? | -- | Go to Step 6 | Go to Step 7 |
5 |
Do the fog lamps light? | -- | Go to Step 8 | Go to Step 9 |
6 |
Is the fog lamp ON input received by the scan tool? | -- | Go to Step 10 | Go to Step 11 |
7 | Replace the BCM. Refer to Body Control Module Replacement in Body Control Systems. Is the repair complete? | -- | -- | |
8 | Replace the faulty relay. Is the repair complete? | -- | -- | |
9 |
Does the test lamp light? | -- | Go to Step 15 | Go to Step 14 |
10 | Connect a fused jumper between terminal A and terminal B of the fog lamp switch connector. Is the fog lamp ON input received by the scan tool? | -- | Go to Step 12 | Go to Step 13 |
11 | Repair the open in CKT 192 between the BFC and the fog lamp switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
12 | Replace the fog lamp switch. Is the repair complete? | -- | -- | |
13 | Repair the open in CKT 251 between the fog lamp switch and the ground splice pack G204. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
14 | Replace the right IP junction block. Is the repair complete? | -- | -- | |
15 | Test CKT 34 for an open or short to ground between the right IP junction block and the underhood junction block. Was a condition found and corrected? | -- | Go to Step 16 | |
16 | Use a DMM in order to measure the resistance between connector C3 terminal A5 and connector C2 terminal F4 of the underhood junction block. Is the measured resistance within the specified range? | 0-2 ohms | Go to Step 17 | Go to Step 18 |
17 |
Does the test lamp light? | -- | Go to Step 19 | Go to Step 20 |
18 | Replace the underhood junction block. Is the repair complete? | -- | -- | |
19 | Replace the inoperative fog lamps or fog lamp connectors. Is the repair complete? | -- | -- | |
20 | Repair the open in CKT 1350 between the fog lamps and ground splice pack G101. Is the repair complete? | -- | -- | |
