GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you Review the system operation and description?

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Go to Step 2

Go to Symptoms

2

Using a scan tool, establish communication with the remote CD changer.

Does the remote CD changer work remotely through the scan tool?

--

Go to Step 3

Go to Step 4

3

Inspect for a open in the E&C serial bus circuit, between the radio and the remote CD changer. Refer to Circuit Testing and Wiring Repairs in Wiring Systems for service procedure.

Did you find and correct the condition?

--

Go to Step 8

Go to Step 6

4

Inspect the remote CD changer B+ feed circuit for a open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems for service procedure.

Did you find and correct the condition?

--

Go to Step 8

Go to Step 5

5

Inspect the remote CD changer ground circuit for a open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems for service procedure.

Did you find and correct the condition?

--

Go to Step 8

Go to Step 7

6

Replace the Radio. Refer to Radio Replacement for service procedure.

Did you complete the replacement?

--

Go to Step 8

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7

Replace the remote CD changer. Refer to Remote Compact Disc Player Replacement for service procedure.

Did you complete the replacement?

--

Go to Step 8

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8

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2