Possible causes – Faulty Short Runner Valve– Short Runner Valve harness is open or shorted– Short Runner Valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1288 JEEP OBD Code Description Wide open throttle condition-short runner valve not in commanded state
Tag: JEEP
P0846 JEEP 2-4 or 2C Pressure Switch Rationality
Possible causes – Faulty Pressure Switch Rationality – Pressure Switch Rationality harness is open or shorted – Pressure Switch Rationality circuit poor electrical connection – Internal transmission damage – Faulty Engine Control Module (ECM) – Faulty Transmission Control Module (TCM) Tech description There is a factory service bulletin for the following Jeep models: 2003-2005 Jeep…
P0707 JEEP Transmission Range Sensor A Circuit Low Input
Possible causes – Faulty Range Sensor– Range Sensor harness is open or shorted– Range Sensor circuit poor electrical connection– Misadjusted Range Sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0707 JEEP OBD Code Description The park/neutral position (PNP) switch includes a transmission range switch. The transmission range switch detects the selector…
P0140 JEEP O2 Sensor 1/2 Circuit Low
Possible causes – Faulty Rear Heated Oxygen Sensor Bank 1– Rear Heated Oxygen Sensor Bank 1 harness is open or shorted– Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank…
P0139 JEEP O2 sensor 1/2 Slow response
Possible causes – Faulty Rear Heated Oxygen Sensor Bank 1– Rear Heated Oxygen Sensor Bank 1 harness is open or shorted– Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank…
P2270 JEEP O2 Sensor 1/2 Signal Biased Lean
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) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2270 JEEP OBD Code Description The Powertrain Control Module (PCM) detects that the sensor…
P2059 JEEP O2 Sensor Signal Circuit Signal Voltage Too High
Possible causes – Faulty O2 Sensor– O2 Sensor harness open or shorted– O2 Sensor circuit poor electrical connection When is the obd code mean? The ECM has detected a plausibility fault with the O2 sensor signal
P0751 JEEP Over Drive Switch Pressed Low
Possible causes – Faulty overdrive off switch– Overdrive off switch harness or connectors– Overdrive off switch circuit is open or shorted When is the obd code mean? The P0751 code is detected when the Over Drive (O/D) switch value has not changed for over 5 minutes Symptoms – Engine Light ON (or Service Engine Soon…
P0705 JEEP Transmission Range Sensor Circuit Malfunction
Possible causes – Faulty Park/Neutral Position Switch– Misadjusted Park/Neutral Position Switch– Park/Neutral Position Switch harness is open or shorted– Park/Neutral Position Switch circuit poor electrical connection When is the obd code mean? The transmission range switch detects the selector lever position and sends a signal to the TCM. Symptoms – Engine Light ON (or Service…
P0805 JEEP Park/Neutral Switch Performance
Possible causes – Faulty Park/Neutral Switch– Park/Neutral Switch harness is open or shorted– Park/Neutral Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)