GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: This table applies to the rear seat audio module only.

1

Did you perform Radio/Audio System Check?

--

Go to Step 2

Go to Radio/Audio System Check

2

Inspect the PARK LPS fuse 5 for an open.

Is the fuse open?

--

Go to Step 3

Go to Step 6

3

Test CKT 2409 (BRN) for a short to ground.

Is there a short to ground in CKT 2409 (BRN)?

--

Go to Step 4

Go to Step 5

4

Repair the short to ground in CKT 2409 (BRN).

Is the repair complete?

--

Go to Radio/Audio System Check

--

5

Replace the PARK LPS fuse 5.

Is the replacement complete?

--

Go to Radio/Audio System Check

--

6

  1. Turn the headlamp switch to the PARK position.
  2. Test CKT 2409 (BRN) for voltage.

Is voltage present in CKT 2409 (BRN)?

B+

Go to Step 10

Go to Step 7

7

Test CKT 2409 (BRN) for an open.

Is there an open in CKT 2409 (BRN)?

--

Go to Step 8

Go to Step 9

8

Repair the open in CKT 2409 (BRN).

Is the repair complete?

--

Go to Radio/Audio System Check

--

9

Replace the headlamp switch. Refer to Headlamp Switch Replacement

Is the replacement complete?

--

Go to Radio/Audio System Check

--

10

Replace the rear seat audio module. Refer to Rear Seat Audio Control Replacement .

Is the replacement complete?

--

Go to Radio/Audio System Check

--