Possible causes
– Faulty O2 Sensor 1/2
– O2 Sensor 1/2 harness is open or shorted
– O2 Sensor 1/2 circuit poor electrical connection
– Exhaust leak
– Faulty Powertrain Control Module (PCM)
– O2 Sensor 1/2 harness is open or shorted
– O2 Sensor 1/2 circuit poor electrical connection
– Exhaust leak
– Faulty Powertrain Control Module (PCM)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P2270 JEEP Description
The Powertrain Control Module (PCM) detects that the sensor does not output a voltage greater than a calibrated high voltage and less than a calibrated low voltage within a specific time period
JEEP Technical Service Bulletins for P2270 code
2007 JEEP PATRIOT FWD POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
2008 JEEP PATRIOT FWD POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
2007 JEEP COMPASS POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
2008 JEEP COMPASS FWD POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)