GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Radio/Audio System Check performed?

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Go to Step 2

Refer to Radio/Audio System Check

2

  1. Disconnect the radio connector.
  2. Connect a test lamp from CKT 340 (ORN) at the radio connector cavity F1 to ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

  1. Remove the radio.
  2. Send the radio in for repair.

Is the repair complete?

--

Refer to Radio/Audio System Check

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4

  1. Locate open in CKT 340 (ORN) between the radio and the IP fuse block.
  2. Repair the open in CKT 340 (ORN) between the radio and the IP fuse block.

Is the repair complete?

--

Refer to Radio/Audio System Check

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