Possible Causes
| Possible Causes |
|---|
| FUSED RUN/START CIRCUIT OPEN |
| VACUUM PUMP RELAY CONTROL CIRCUIT OPEN/HIGH RESISTANCE |
| VACUUM PUMP RELAY CONTROL CIRCUIT SHORTED TO GROUND |
| VACUUM PUMP RELAY |
| POWER DISTRIBUTION CENTER (PDC) |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .