Possible Causes
| Possible Causes |
|---|
| (B15) BRAKE SIGNAL 1 CIRCUIT OPEN |
| (B16) BRAKE SIGNAL 2 CIRCUIT SHORTED TO GROUND |
| (Z914) 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 .