GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the cigar lighter/auxliary outlets circuit description and perform the necessary inspections?

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Go to Step 2

Go to Symptoms

2

Verify that the rear cigar lighter is inoperative.

Does the rear cigar lighter operate normally?

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Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Connect a test lamp from the Auxiliary Power Outlet, Rear harness side connector cavity A to ground.

Did the test lamp light?

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Go to Step 5

Go to Step 4

4

Repair the open or short to ground in CKT 1040 (ORN) between the IP fuse block and the rear outlet. Refer to Circuit Testing and Wiring Repairs then check and or replace the fuse.

Is the repair complete?

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Go to Step 8

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5

Connect a test lamp from the Auxiliary Power Outlet, Rear harness side connector cavity A to cavity B.

Did the test lamp light?

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Go to Step 6

Go to Step 7

6

Replace the rear outlet.

Is the repair complete?

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Go to Step 8

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7

Repair the open or high resistance in CKT 1850 (BLK) between the rear outlet and G470. Refer to Circuit Testing and Wiring Repairs .

Is the repair complete?

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Go to Step 8

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8

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3