GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Set the headlamp switch to the HEAD position.
  2. Set the headlamps dimmer switch to the HI position.
  3. Connect a fused jumper wire from terminal A to chassis ground in order to backprobe the right headlamp.
  4. Did the headlamp light?

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Go to Step 2

Go to Step 3

2

Repair the open in CKT 150 (BLK) between the right headlamp and S105.

Is the repair complete?

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System OK

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3

Replace the right headlamp. Refer to Headlamp Replacement .

Is the repair complete?

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System OK

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