Step  | Action  | Value(s)  | Yes  | No  | 
|---|---|---|---|---|
1  | Did you perform the Lighting System Diagnostic System Check?  | --  | Go to Step 2  | |
2  | 
 Did the test lamp light?  | --  | Go to Step 3  | Go to Step 4  | 
3  | Use a test lamp to backprobe between the underhood accessory junction block connector C2 terminal F4 and ground. Did the test lamp light?  | --  | Go to Step 6  | Go to Step 5  | 
4  | Inspect for a faulty connection or an open in CKT 11 between the headlamp dimmer switch and C201 terminal E13. Is there a faulty connection or an open in CKT 11?  | --  | Go to Step 9  | Go to Step 10  | 
5  | Repair the faulty connection or open in CKT 11 between C201 terminal E11 and the underhood accessory junction block harness connector C2 terminal F4. Is the repair complete?  | --  | Go to Step 12  | --  | 
6  | Use a test lamp to backprobe between the underhood accessory junction block connector C3 terminal B4 and ground and between terminal A4 and ground. Does the test lamp light at both terminals?  | --  | Go to Step 7  | Go to Step 8  | 
7  | 
 Does the test lamp light at both connectors?  | --  | Go to Step 12  | Go to Step 11  | 
8  | Replace the underhood accessory junction block. Refer to Relay/Fuse Center Replacement In Wiring Systems. Has the repair been made?  | --  | Go to Step 12  | --  | 
9  | Repair a faulty connection or an open in CKT 11. Has the repair been made?  | --  | Go to Step 12  | --  | 
10  | Replace the headlamp dimmer switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel Column - Tilt. Has the repair been made?  | --  | Go to Step 12  | --  | 
11  | 
 Has the repair been made?  | --  | Go to Step 12  | --  | 
12  | Operate the system order to verify the repair. Did you correct the condition?  | --  | System OK  | Go to Step 2  | 
Step  | Action  | Value(s)  | Yes  | No  | ||||
|---|---|---|---|---|---|---|---|---|
1  | Did you perform the Lighting System Diagnostic System Check?  | --  | Go to Step 2  | |||||
2  | 
 Is the high beam indicator ON?  | --  | Go to Step 4  | Go to Step 3  | ||||
3  | Inspect CKT 11 for the following conditions between the headlamp dimmer switch and S219: 
 
 Is there a poor connection or an open in CKT 11?  | --  | Go to Step 6  | Go to Step 5  | ||||
4  | Repair the following conditions in CKT 11 between S219 and the fuse block terminal B1: 
 
 Has the repair been made and the system rechecked?  | --  | Go to Step 7  | --  | ||||
5  | Replace the headlamp dimmer switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column -Tilt. Has the repair been made and the system rechecked?  | --  | Go to Step 7  | --  | ||||
6  | Repair the following conditions in CKT 11 between the headlamp dimmer switch and S219: 
 
 Has the repair been made and the system rechecked?  | --  | Go to Step 7  | --  | ||||
7  | Operate the system in order to verify the repair. Did you correct the condition?  | --  | System OK  | Go to Step 2  |