Step
| Action
| Value(s)
| Yes
| No
|
1
| Was the system check performed?
| --
| Go to
Step 2
| Go to
Radio/Audio System Check
|
2
|
- For Bravada only, disconnect the radio connector.
- For Chevrolet/GMC only, disconnect connector C2.
- Turn the ignition switch to the ACCY position.
- Provide enough ambient light in order to simulate daytime.
- For Bravada only, connect a test lamp from CKT 1382 (PPL/WHT)
at the radio connector cavity F5.
- For Chevrolet/GMC only, connect a test lamp from connector C2
cavity 6 to ground.
Does the test lamp light?
| --
| Go to
Step 4
| Go to
Step 3
|
3
|
- Turn the ignition switch to the OFF position.
- Disconnect the body control module (BCM) connector C2.
- For Bravada only, connect a test lamp between the BCM connector C2
cavity A12 and the radio connector cavity F5.
- For Chevrolet/GMC only, connect a test lamp between the BCM connector C2
cavity 6 for CKT (1382) (PPL/WHT).
Does the test lamp light?
| --
| Go to
Step 5
| Go to
Step 6
|
4
|
- Remove the radio.
- Repair or replace the radio.
Is the repair complete?
| --
| Go to
Radio/Audio System Check
| --
|
5
| Diagnose the body control module. Refer to
Diagnostic System Check - Body Control System
.
Is the repair complete?
| --
| Go to
Radio/Audio System Check
| --
|
6
|
- Locate an open in CKT 1382 (PPL/WHT) between the radio
and the BCM.
- Repair the open.
Is the repair complete?
| --
| Go to
Radio/Audio System Check
| --
|
