Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 |
Do the high beam headlamps illuminate? | -- | Go to Step 3 | Go to Step 2 |
2 | Repair the high beam headlamps. Refer to Headlamps Inoperative - High Beams . Is the repair complete? | -- | System OK | -- |
3 |
Does the test lamp illuminate? | -- | Go to Step 5 | Go to Step 4 |
4 | Repair the open in CKT 150 (BLK) between the headlamp(s) and ground. Is the repair complete? | -- | System OK | -- |
5 | Connect a test lamp from cavity A (base and dual rectangular headlamps) or cavity B (single rectangular headlamps) to ground. Does the test lamp illuminate? | -- | Go to Step 6 | Go to Step 7 |
6 | Replace the headlamp(s). Is the repair complete? | -- | System OK | -- |
7 |
Do the low beam headlamps illuminate? | -- | Go to Step 10 | Go to Step 8 |
8 | Check the resistance of CKT 12 (TAN) with a J 39200 digital multimeter. Is the resistance greater than the specified value? | 1 ohms | Go to Step 9 | Go to Step 11 |
9 | Repair the open in CKT 12 (TAN) between the DRL relay and the headlamp(s). IS the repair complete? | -- | System OK | -- |
10 | Replace the DRL relay. Refer to Daytime Running Lamps (DRL) Relay Replacement . Is the repair complete? | -- | System OK | -- |
11 | Connect a test lamp from cavity E 12 at the headlamps dimmer switch to ground. Does the test lamp illuminate? | -- | Go to Step 12 | Go to Step 13 |
12 | Locate and repair the open in CKT 359 (PPL) between the headlamps dimmer switch connector and the DRL relay connector. Is the repair complete? | -- | System OK | -- |
13 |
Does the test lamp illuminate? | -- | Go to Step 14 | Go to Step 15 |
14 | Replace the headlamps dimmer switch. Refer to Turn Signal and Multifunction Switch Assembly - Disassemble - Off Vehicle in Steering Wheel and Column - Tilt. Is the repair complete? | -- | System OK | -- |
15 | Connect a test lamp from cavity D at the headlamps switch connector to ground. Does the test lamp illuminate? | -- | Go to Step 16 | Go to Step 17 |
16 | Repair the open in CKT 10 (YEL) between the headlamps switch connector and the headlamps dimmer switch connector. Is the repair complete? | -- | System OK | -- |
17 |
Does the test lamp illuminate? | -- | Go to Step 18 | Go to Step 19 |
18 | Replace the headlamps switch. Is the repair complete? | -- | System OK | -- |
19 | Repair the open in CKT 42 (RED) between the engine wiring harness junction block and the headlamps switch. Is the repair complete? | -- | System OK | -- |
