Possible causes – Faulty Vacuum Pump Module– Vacuum Pump Module harness is open or shorted– Vacuum Pump Module circuit poor electrical connection.– Faulty Engine Control Module (ECM) Tech notes There is a factory service bulletin for the following Toyota models:
Possible causes – Faulty Vacuum Pump Module– Vacuum Pump Module harness is open or shorted– Vacuum Pump Module circuit poor electrical connection.– Faulty Engine Control Module (ECM) When is the code detected? To determine leak criterion (Reference pressure), vacuum pump
Possible causes – Faulty Vacuum Pump Module– Vacuum Pump Module harness is open or shorted– Vacuum Pump Module circuit poor electrical connection.– Faulty Engine Control Module (ECM) When is the code detected? To determine leak criterion (Reference pressure), vacuum pump
P2402 Information for specific makes P2402 DODGEP2402 TOYOTAP2402 LEXUSP2402 SCION
P2402 DODGE – Cylinder #10 Above Knock Threshold