For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems
2 | Test for an open in CKT 306 between the headlamp switch and the ALC headlamp relay connctor. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | System OK | Go to Step 3
3 | Connect a fused jumper wire between terminal 36 of the headlamp switch connector and ground. Do the headlamps light? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 4
4 | Replace the headlamp switch assembly. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column. Did you complete the repair? | System OK | --