GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Radio/Audio System Diagnostic System Check performed?

--

Go to Step 2

Diagnostic System Check - Radio/Audio System

2

  1. Disconnect the compact disc (CD) player.
  2. Measure the voltage from the compact disc player connector terminal 5 to ground.

Is the voltage within the specified range?

10-15 V

Go to Step 4

Go to Step 3

3

Repair the open or short to ground in CKT 2640 (ORN).

Did you complete the repair?

--

Diagnostic System Check - Radio/Audio System

--

4

Measure the voltage from the compact disc (CD) player connector terminal 5 to terminal 7.

Is the voltage within the specified range?

10-15 V

Go to Step 6

Go to Step 5

5

Repair the open in CKT 1051 (BLK).

Did you complete the repair?

--

Diagnostic System Check - Radio/Audio System

--

6

Inspect CKT 835 (DK GRN) for an open, short to ground, or short to power.

Is CKT 835 (DK GRN) open or shorted?

--

Go to Step 7

Go to Step 8

7

Repair the open or short in CKT 835 (DK GRN).

Did you complete the repair?

--

Diagnostic System Check - Radio/Audio System

--

8

Replace the compact disc (CD) player. Refer to Remote CD Changer Replacement .

Did you complete the repair?

--

Diagnostic System Check - Radio/Audio System

--