Possible Causes
WARNING: This page is about a different variant/trim than selected.
| Possible Causes |
|---|
| FUSED B+ CIRCUIT OPEN |
| (T109) ELECTRIC VACUUM PUMP OUTPUT CIRCUIT OPEN |
| (T109) ELECTRIC VACUUM PUMP OUTPUT CIRCUIT SHORTED TO GROUND |
| GROUND CIRCUIT OPEN |
| PINCHED, CUT OR OPEN VACUUM SUPPLY LINE |
| VACUUM PRESSURE SENSOR |
| BRAKE VACUUM BOOSTER |
| ELECTRIC VACUUM PUMP |
| ANTI-LOCK BRAKE SYSTEM (ABS) MODULE |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .