GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the necessary inspections?

--

Go to Step 2

Go to Symptoms

2

Inspect the cigar lighter fuse 13 at I/P fuse block.

Is the fuse functional?

--

Go to Step 4

Go to Step 3

3

Locate and repair the overload and replace the cigar lighter fuse.

Is the repair complete?

--

Go to Step 9

--

4

  1. Disconnect the cigar lighter.
  2. Connect a DMM from CKT 640 (ORN) cavity A to the cigar lighter connector to ground.

Is battery voltage present?

B+

Go to Step 6

Go to Step 5

5

Repair the open in CKT 640 between the instrument panel fuse block and the cigar lighter.

Is the repair complete?

--

Go to Step 9

--

6

Inspect for an open in CKT 1050 (BLK) between the cigar lighter and ground G200.

Did you find an open?

--

Go to Step 7

Go to Step 8

7

Repair the open in CKT 1050 (BLK) between the cigar lighter and ground G200.

Is the repair complete?

--

Go to Step 9

--

8

Replace the cigar lighter.

Is the replacement complete?

--

Go to Step 9

--

9

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2