GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open.

1

Did you perform the Headlamp DRL System Check?

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Go to Step 2

Go to Daytime Running Lights (DRL) System Check

2

  1. Disconnect the turn/hazard headlamp switch assembly connector C1.
  2. Use a fused jumper in order to ground terminal C to E of the turn/headlamp hazard switch Connector C1.

Do the headlamps operate properly?

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Go to Step 4

Go to Step 3

3

Locate and repair an open or bad connection in CKT 350 between the turn/hazard headlamp switch assembly and ground. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Daytime Running Lights (DRL) System Check

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4

Replace the turn/hazard headlamp switch assembly.

Is the repair complete?

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Go to Daytime Running Lights (DRL) System Check

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