GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: Both Low Beams Inoperative

1

Were you sent here from the Headlamp System Check?

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Go to Step 2

Go to Headlight System Check

2

  1. Remove the DIMMER relay.
  2. Connect a fused jumper wire from cavity 1 to cavity 4 of the socket where the DIMMER relay came from.
  3. Turn the light switch to the head position.

Do the low beams illuminate?

--

Go to Step 3

Go to Step 4

3

Replace the DIMMER relay.

Is the replacement complete?

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Go to Headlight System Check

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4

Locate and repair the open in the BLK wires between the DIMMER relay and the fuses. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Headlight System Check

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