Possible causes – Incorrect fuel pressure– Faulty fuel pressure solenoid– Air in fuel system When is the obd code mean? The ECM has determined that the fuel rail pressure is too high for a specific condition Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Tag: JEEP
P0500 JEEP No Vehicle Speed Sensor
Possible causes – Faulty Vehicle Speed Sensor– Vehicle speed sensor harness or connectors is open or shorted– Vehicle speed sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the obd code mean? The almost 0 km/h (0 MPH) signal from vehicle speed sensor is sent to Engine Control Module (ECM) even when…
P1102 JEEP Viscous/Cabin Heater Relay Circuit Condition
Possible causes – Faulty Viscous/Cabin Heater Relay– Viscous/Cabin Heater Relay harness is open or shorted– Viscous/Cabin Heater Relay circuit poor electrical connection When is the obd code mean? The ECM has detected an excessive current condition on the Viscous/Cabin Heater Relay control circuit Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P0134 JEEP O2 Sensor 1/1 Circuit Open
Possible causes – Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Faulty Front Heated Oxygen Sensor Bank 1– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the Front Heated Oxygen Sensor Bank…
P1129 JEEP Closed Loop Fueling Not Achieved Bank 2
Possible causes – Fuel delivery system– Engine Coolant Temperature (ECT) sensor or wiring connectors– MAP sensor or wiring connectors– O2 sensor wiring or connectors– Engine mechanical system Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1129 JEEP OBD Code Description The Powertrain Control Module (PCM) detects a condition where the vehicle has…
P1128 JEEP Closed Loop Fueling Not Achieved Bank 1
Possible causes – Fuel delivery system– Manifold Absolute Pressure (MAP) sensor or wiring connectors– O2 sensor wiring or connectors– Engine mechanical system– Faulty Powertrain Control Module (PCM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1128 JEEP OBD Code Description The Powertrain Control Module (PCM) detects a condition where the vehicle has…
P0200 JEEP Fuel Injector Circuit
Possible causes – Fuel Injector harness is open or shorted– Fuel injector circuit poor electrical connection– Faulty fuel injector– Faulty Engine Control Module (ECM) When is the obd code mean? The P0200 is set if the Engine Control Module (ECM) is detects a low or high voltage drop or resistance at the injectors. Symptoms –…
P0093 JEEP Fuel Rail Pressure Malfunction Positive Pressure Deviation
Possible causes – Fuel Quantity Solenoid harness is open or shorted– Fuel Quantity Solenoid electrical circuit poor connection– Faulty Fuel Quantity Solenoid When is the obd code mean? The Engine Control Module (ECM) has determined that the actual fuel pressure is above the indicated fuel pressure specifications. Symptoms – Engine Light ON (or Service Engine…
P0451 JEEP Fuel Tank Pressure Sensor Range/Performance
Possible causes – Fuel Tank Pressure Sensor– Fuel Tank Pressure sensor harness is open or shorted– Fuel Tank Pressure sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the obd code mean? An improper voltage signal from the fuel tank pressure sensor is sent to Engine Control Module (ECM). Symptoms – Engine…
P0706 JEEP Transmission Range Sensor Rationality
Possible causes – Faulty Transmission range sensor– Transmission range sensor harness is open or shorted– Transmission range sensor circuit poor eletrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0706 JEEP OBD Code Description The Engine Control Module has detected a faulty signal from the transmission range sensor