Fejlkodeindeks · medium
P1242
Sensor power supply circuit high voltage (TP Sensor, MAP Sensor, AC Pressure Sensor)
Sensor power supply circuit high voltage (TP Sensor, MAP Sensor, AC Pressure Sensor)
Documented for: 2.0L gasoline; 2.5L/3.0L gasoline · System(s): EMS EOBD, EMS OBD II · Factory MIL flag: 2 · Default action: ECM Default: –Idle speed control valve disabled –Idle speed controlled by fuel injection intervention –Idle speed adaption inhibited
Common causes
- ECM to sensors supply voltage circuit(s): open circuit
- high resistance
- short circuit to high voltage TP Sensor
- MAP Sensor
- AC Pressure Sensor failure(s)
- short circuit to high voltage APP Sensor
- TP Sensor
- IP Sensor
- FTP Sensor failure(s)
- Sensor power supply - high input
Quick checks
- Confirm freeze-frame and conditions when the code set
- Inspect connectors, grounds, and harness for the circuit named in the code
- Compare live sensor values vs expected (unplugged/biased sensors are common)