P1C12 SUBARU - Vacuum Pump Relay Stuck Closed
- Faulty Vacuum Pump Relay
- Vacuum Pump Relay harness is open or shorted
- Vacuum Pump Relay circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1c12 Subaru DescriptionThe Engine Control Module (ECM) monitors the Vacuum Pump Relay. The ECM sets the OBDII code when the Vacuum Pump Relay is not to factory specifications.
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