GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms

2

Connect a scan tool and turn it on.

Does the scan tool power up?

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Go to Step 3

Go to Scan Tool Does Not Power Up in Data Link Communications

3

Test the battery positive voltage circuit of the cigar lighter for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 7

Go to Step 4

4

Test the ground circuit of the cigar lighter for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 7

Go to Step 5

5

Inspect for poor connections at the harness connector of the cigar lighter. 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 7

Go to Step 6

6

Replace the cigar lighter. Refer to Cigar Lighter Housing Replacement - Instrument Panel in Instrument Panel, Gauges and Console.

Did you complete the repair?

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Go to Step 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2