Possible Causes
| Possible Causes |
|---|
| (B15) BRAKE SWITCH 1 SIGNAL CIRCUIT OPEN |
| (Z908) GROUND CIRCUIT OPEN |
| STOP LAMP SWITCH |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .