GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the radio/audio system check?

--

Go to Step 2

Go to Radio/Audio System Check

2

  1. Disconnect the radio.
  2. Place the ignition switch in the RUN position.
  3. Connect a text lampJ 35616-200 from CKT 1140 (ORN) cavity 10 at the radio connector C1 to ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 5

3

Connect a test lampJ 35616-200 from CKT 1140 (ORN) cavity 10 to CKT 1050 (BLK) cavity 5 at the radio connector C1 to ground.

Does the test lamp light?

--

Go to Step 4

Go to Step 6

4

Connect a test lampJ 35616-200 from CKT 43 (YEL) cavity 9 at the radio connector C1 to ground.

Does the test lamp light?

--

Go to Step 7

Go to Step 8

5

Repair the open in CKT 1140 (ORN) between the radio and the IP fuse block.

Is the repair complete?

--

Go to Radio/Audio System Check

--

6

Repair the open in CKT 1050 (BLK) between the radio and GND G200.

Is the repair complete?

--

Go to Radio/Audio System Check

--

7

  1. Remove the radio. Refer to Radio Replacement .
  2. Send the radio in for repair

Is the repair complete?

--

Go to Radio/Audio System Check

--

8

Repair the open in CKT 43 (YEL) between the radio and the IP fuse block.

Is the repair complete?

--

Go to Radio/Audio System Check

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