Radio Displays LOC, LOCKED, or CODE
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Radio Displays LOC, LOCKED, or CODE
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Radio/Audio System Schematics | |||
| 1 | Did you perform the Entertainment System Diagnostic System Check? | Go to Step 2 | Go toDiagnostic System Check - Entertainment System |
| 2 |
|
Go toTesting for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 |
|
Go to Step 4 | Go to Step 5 |
| 4 |
IMPORTANT:
Reprogram the radio. Refer to Service Programming System (SPS)
in Programming. Replace the radio. Refer toRadio Replacement .Did you complete the replacement? |
Go to Step 5 | - |
| 5 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |