Possible Causes
| Possible Causes |
|---|
| INTERMITTENT DTC |
| (K157) MASS AIR FLOW SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| (K957) MASS AIR FLOW SENSOR GROUND CIRCUIT SHORTED TO VOLTAGE |
| (F944) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR HIGH RESISTANCE |
| (K157) MASS AIR FLOW SENSOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| (K957) MASS AIR FLOW SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE |
| (K157) MASS AIR FLOW SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| (K157) MASS AIR FLOW SENSOR SIGNAL CIRCUIT SHORTED TO THE (K957) MASS AIR FLOW SENSOR GROUND CIRCUIT |
| MASS AIR FLOW SENSOR |
| ENGINE CONTROL MODULE (ECM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.