GM Service Manual Online
For 1990-2009 cars only

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Action

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SCHEMATIC REFERENCE: Cigar Lighter/Power Outlet Schematics

1

Did you perform the Cigar Lighter/Auxiliary Outlets Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Cigar Lighter/Auxiliary Outlets

2

Operate the auxiliary outlet.

Does the auxiliary outlet operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Does the front cigar lighter operate properly?

Go to Step 4

Go to Cigar Lighter Inoperative

4

Inspect the AUX PWR fuse for an open.

Is the fuse open?

Go to Step 8

Go to Step 5

5

  1. Turn OFF the ignition.
  2. Disconnect the auxiliary outlet harness connector.
  3. Turn ON the ignition, with the engine OFF.
  4. Connect a test lamp between the supply voltage circuit of the auxiliary outlet and ground circuit of the auxiliary outlet.

Does the test lamp illuminate?

Go to Step 7

Go to Step 6

6

Connect a test lamp between the supply voltage circuit of the auxiliary outlet and a good ground.

Does the test lamp illuminate?

Go to Step 9

Go to Step 10

7

Inspect for a poor connection/terminal tension at the auxiliary. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 12

Go to Step 11

8

Repair a short to ground in the supply voltage circuit of the auxiliary outlet. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

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9

Repair the open or high resistance in the ground circuit of the auxiliary outlet. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

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10

Repair the open or high resistance in the supply voltage circuit of the auxiliary outlet. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

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11

Replace the auxiliary outlet. Refer to 12-Volt Accessory Power Receptacle Replacement in Instrument Panel, Gauges, and Console.

Did you complete the replacement?

Go to Step 12

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12

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2