Step | Action | Value(s) | Yes | No | ||||
|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Lighting System Diagnostic System Check? | -- | Go to Step 2 | |||||
2 |
Are both rear fog lamps operating properly? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||
3 | Did only one rear fog lamp illuminate? | -- | Go to Step 10 | Go to Step 4 | ||||
4 | Does the rear fog lamp indicator illuminate inside the rear window wiper/washer and multifunction switch? | -- | Go to Step 5 | Go to Step 12 | ||||
5 | Use a test lamp in order to backprobe between the RH rear fog lamp connector, terminal C and ground. Does the test lamp light? | -- | Go to Step 6 | Go to Step 9 | ||||
6 | Use a test lamp in order to backprobe between the RH rear fog lamp connector, terminal C and terminal E. Does the test lamp light? | -- | Go to Step 7 | Go to Step 8 | ||||
7 | Replace the rear fog lamps. Refer to Tail Lamp Replacement Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
8 | Repair the following conditions in CKT 350.
Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
9 | Repair the following conditions in CKT 122 between S243 and S419:.
Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
10 | Test for an open or high resistance in the operative rear fog lamp power supply or ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 27 | Go to Step 11 | ||||
11 | Replace the inoperative rear fog lamp. Refer to Tail Lamp Replacement Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
12 |
Does the test lamp light for both tests? | -- | Go to Step 13 | Go to Step 14 | ||||
13 | Install a fused jumper across terminal B3 and terminal C3 of the rear fog lamp relay connector. Do the fog lamps illuminate? | -- | Go to Step 16 | Go to Step 15 | ||||
14 | Repair the following conditions in CKT 1640 between the rear fog lamp relay and the S270:
Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
15 | Repair the following conditions in CKT 122 between the rear fog lamp relay and the S243:
Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
16 | Use a test lamp in order to backprobe the rear fog lamp relay terminal B1 and terminal C1. Does the test lamp light? | -- | Go to Step 17 | Go to Step 18 | ||||
17 | Replace the rear fog lamp relay. Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
18 |
Is the voltage within the specified range? | B+ | Go to Step 20 | Go to Step 19 | ||||
19 | Repair the following conditions in CKT 10 between the rear fog lamp module terminal L and the headlamp and I/P dimmer switch terminal L:
Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
20 | Use a DMM in order to measure the voltage between the rear fog lamp module terminal L and terminal B. Is the voltage within the specified range? | B+ | Go to Step 22 | Go to Step 21 | ||||
21 | Repair the following conditions in CKT 1450 between the rear fog lamp module terminal B and ground G200:
Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
22 |
Is the voltage within the specified range? | B+ | Go to Step 25 | Go to Step 23 | ||||
23 |
Is the voltage within the specified range? | B+ | Go to Step 24 | Go to Step 26 | ||||
24 | Inspect for a poor connection or an open circuit in CKT 1977. If the circuit is good, replace the rear window wiper/washer and multifunction switch. Refer to Multifunction Switch Assembly Replacement - Instrument Panel . Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
25 | Inspect for a poor connection or an open circuit in CKT 1870. If the circuit is good, replace the rear fog lamp module. Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
26 | Repair the following conditions in CKT 1450 between the rear window wiper/washer and multifunction switch terminal B and ground G200:
Has the repair been made and the system rechecked? | -- | Go to Step 27 | -- | ||||
27 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
