For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems
2 |

1. Place the headlamp switch in the HEADLAMP position.
2. Place the headlamp dimmer switch in the LOW position.
3. Observe the headlamps.
4. Place the headlamp dimmer switch in the HIGH position.
5. Observe the headlamps.

Do both the low and high beam headlamps illuminate?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3 | Test for an open or high resistance in the ground circuit of the turn/headlamp wiper switch assembly. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 6 | Go to Step 4
4 | Inspect for poor connections at the headlamp switch assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 6 | Go to Step 5
5 | Replace the headlamp switch assembly. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 6 | --
6 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3