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 auxiliary power fuse 7 at the 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 auxiliary power fuse.

Is the repair complete?

--

Go to Step 7

--

4

Connect a DMM from CKT 840 (ORN) cavity A to the inoperative power outlet to ground.

Is battery voltage present?

B+

Go to Step 5

Go to Step 6

5

Repair the respective opens in the following circuits:

    • CKT 1050 (BLK)
    • CKT 1350 (BLK)

from the power outlet to the following respective grounds:

    • G200
    • G400

Are the repairs complete?

--

Go to Step 7

--

6

Repair the open in CKT 840 (ORN) between the power outlet and the instrument panel fuse block.

Is the repair complete?

--

Go to Step 7

--

7

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2