Possible causes – Faulty stop lamp switch– Blown stop lamp bulb– Brake switch harness open or shorted– Brake switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0504 JEEP OBD Code Description The Engine Control Module (ECM) has detected a fault in correlation between the two brake switch…
Tag: JEEP
P1004 JEEP Short Runner Valve Control Performance
Possible causes – Faulty short runner valve assembly– Short runner valve harness is open or shorted– Short runner valve circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? The P1004 code is detected when the value is determined to be out of the calibrated range in either the de-energized,…
P1288 JEEP Short Runner Valve Circuit Condition
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
P0138 JEEP O2 sensor 1/2 Circuit high
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– Intake air leaks– Exhaust gas leaks– Inappropriate fuel pressure– Faulty fuel injectors Tech description Replacing the Rear Heated Oxygen Sensor Bank 1 usually takes…
P2271 JEEP O2 Sensor 1/2 Signal Biased Rich
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– Intake air leaks– Exhaust gas leaks– Inappropriate fuel pressure– Faulty fuel injectors When is the obd code mean? The Powertrain Control Module (PCM) detects…
P0161 JEEP O2 Sensor 2/2 Heater Performance
Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure – Faulty fuel injectors– Intake air leaks– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank 2 usually…
P0158 JEEP O2 Sensor 2/2 Circuit High
Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure – Faulty fuel injectors– Intake air leaks– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank 2 usually…
P0159 JEEP O2 Sensor 2/2 Slow Response
Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the O2 Sensor 2 usually takes…
P0157 JEEP O2 Sensor 2/2 Circuit Low
Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 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…
P0812 JEEP Reverse Input Circuit
Possible causes – Faulty Reverse Input Switch– Reverse Input Switch harness is open or shorted– Reverse Input Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)