GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Turn the headlamps on to high beams.
  2. Using a test lamp probe between the instrument cluster harness connector terminal A12 and ground.

Is the test lamp on?

--

Go to Step 3

Go to Step 2

2

Repair poor connection or open in circuit 640 between S202 and the instrument cluster harness connector terminal A12.

Is the repair complete?

--

Go to Headlight System Check

--

3

  1. Headlamps remain on in high beams.
  2. Using a test light, backprobe between the instrument cluster harness connector terminal B2 and ground.

Is the test lamp on?

--

Go to Step 4

Go to Step 5

4

Repair poor connection or open in circuit 1200 between the instrument cluster connector harness terminal B2 and C201 terminal K.

Is the repair complete?

--

Go to Headlight System Check

--

5

Service the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console for service procedure.

Is the repair complete?

--

Go to Headlight System Check

--