Tag: JEEP

Possible causes – Weak battery- Low voltage while cranking– Faulty Engine Control Module (ECM) relay– Blown ECM fuse– Faulty ECM– ECM harness is open or shorted– ECM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0687 JEEP OBD Code Description The Engine Control Module (ECM) has detected a…

Possible causes – Three way catalyst converter Bank 2– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Engine Control Module (ECM) Tech description As the code description implies the P0430 code means that the vehicle’s control module has detected that the three-way…

Possible causes – Throttle Body Plate Binding– Faulty Throttle Actuator– Throttle Actuator harness is open or shorted– Throttle Actuator circuit poor electrical connection When is the obd code mean? Throttle valve locked during Engine Control Module (ECM) order to close Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2111 JEEP OBD Code…

Possible causes – Throttle Body Plate Binding– Faulty Throttle Actuator– Throttle Actuator harness is open or shorted– Throttle Actuator circuit poor electrical connection When is the obd code mean? Throttle valve locked during Engine Control Module (ECM) order to open Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2112 JEEP OBD Code…

Possible causes – Timing belt or chain stretched or jumped– Faulty Camshaft Position (CMP) Sensor – Camshaft Position (CMP) Sensor harness is open or shorted– Camshaft Position (CMP) Sensor circuit poor electrical connection. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1391 JEEP OBD Code Description The ECM detected the actual Camshaft…

Possible causes – Transmission Control Relay harness is open or shorted – Transmission Control Relay circuit poor electrical connection – Faulty Transmission Control Relay – Faulty Transmission Solenoid/Pressure Switch Assembly Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0888 JEEP OBD Code Description The Transmission Control Module (TCM) has detected less than…

Possible causes – Transmission oil burnt or oil pan has excessive debris – internal transmission damage– Faulty Governor Pressure Sensor– Faulty Governor Pressure Solenoid – Faulty Valve Body– Engine Control Module (ECM) 5 volt supply– 5 volt supply circuit open– 5 volt supply circuit open inside the transmission – Faulty Engine Control Module (ECM) When…

Possible causes – Transmission Solenoid/Pressure Switch harness is open or shorted – Transmission Solenoid/Pressure Switch circuit poor electrical connection – Faulty Transmission Solenoid/Pressure Switch – 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…

Possible causes – Vacuum leak– Throttle cable not free– Idle speed screw misadjusted When is the obd code mean? The Engine Control Moduel (ECM) has detected idle speed not within specified range Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Three way catalyst converter Bank 1– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Engine Control Module (ECM) Tech description As the code description implies the P0420 code means that the vehicle’s control module has detected that the three-way…