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. Remove connector at the DRL rear park lamp relay.
  2. Connect an unpowered test lamp between the connector cavity C5 and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

  1. Remove the left rear park lamp.
  2. Connect a J 39200 DMM between the DRL rear park lamp and relay connector cavity D6 and Cavity B of the left rear park lamp.

Is continuity present?

--

Go to Step 5

Go to Step 6

4

Repair the open in CKT 9 (BRN) between the daytime running lamp rear park lamp relay cavity C2 and S225.

Is the repair complete?

--

Go to Exterior Lights System Check

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5

Replace the DRL rear park lamp relay or refer to Daytime Running Lights (DRL) System Check

Is the repair complete?

--

Go to Exterior Lights System Check

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6

Repair the open in CKT 1256 (PPL) between S324 and the DRL rear park lamp relay connector cavity D6.

Is the repair complete?

--

Go to Exterior Lights System Check

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