GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Exterior Lights System Check performed?

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Go to Step 2

Go to Exterior Lights System Check .

2

  1. Turn the light switch to the PARK position.
  2. Backprobe the junction block connector C8 using J 35616-200 from cavity 2 to ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Repair the open in the RED/YEL wire between S405 and the junction block. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Exterior Lights System Check .

--

4

Test for an open in the RED/YEL wire between the junction block and S204.

Was an open found?

--

Go to Step 6

Go to Step 5

5

Replace the junction block.

Is the repair complete?

--

Go to Exterior Lights System Check .

--

6

Repair the open. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Exterior Lights System Check .

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