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?

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Go to Step 2

Diagnostic System Check - Radio/Audio System

2

  1. Disconnect the compact disc (CD) changer.
  2. Measure the voltage between the compact disc (CD) changer connector terminal 5 and ground.

Is the voltage within the specified range?

10-15 V

Go to Step 4

Go to Step 3

3

Repair the open or the short to ground in CKT 2640 (ORN). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Diagnostic System Check - Radio/Audio System

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4

Measure the voltage between the CD changer connector terminal 5 and 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). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Diagnostic System Check - Radio/Audio System

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6

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

Is CKT 835 (DK GRN) open or shorted?

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Go to Step 7

Go to Step 8

7

Repair the open or short in CKT 835 (DK GRN). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Diagnostic System Check - Radio/Audio System

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8

Replace the CD changer. Refer to Remote CD Changer Replacement .

Did you complete the repair?

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Diagnostic System Check - Radio/Audio System

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