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 auxiliary outlet is inoperative.

Does the auxiliary outlet 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 CKT 1040 (ORN) at one of the auxiliary power outlets to ground.

Does the test lamp light?

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Go to Step 5

Go to Step 4

4

Locate the short to ground and or repair the open in the CKT 1040 (ORN) between the IP fuse block and the auxiliary power tray. Refer to Circuit Testing and Wiring Repairs .

Is the repair complete?

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Go to Step 8

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5

Connect the test lamp from CKT 1040 (ORN) to CKT 1050 (BLK) at one of the auxiliary power outlets.

Does the test lamp light?

--

Go to Step 6

Go to Step 7

6

Replace the auxiliary power tray.

Is the repair complete?

--

Go to Step 8

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7

Check for high resistance and Locate and repair the open in CKT 1050 (BLK) between the auxiliary power outlets and ground. 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