Possible causes – Faulty Ignition Coil 4– Ignition Coil 4 harness is open or shorted– Ignition Coil 4 circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the obd code mean? Each ignition circuit is continuously monitored by the Engine Control Module (ECM). The test fails when the ECM does not receive a…
Tag: JEEP
P0355 JEEP Ignition Coil 5 Circuit
Possible causes – Faulty Ignition Coil 5– Ignition Coil 5 harness is open or shorted– Ignition Coil 5 circuit poor electrical connection– Faulty Crankshaft Positioning Sensor (See Comments Below)– Faulty Engine Control Module (ECM) When is the obd code mean? Each ignition circuit is continuously monitored by the Engine Control Module (ECM). The test fails…
P0356 JEEP Ignition Coil 6 Circuit
Possible causes – Faulty Ignition Coil 6– Ignition Coil 6 harness is open or shorted– Ignition Coil 6 circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the obd code mean? Each ignition circuit is continuously monitored by the Engine Control Module (ECM). The test fails when the ECM does not receive a…
P1001 JEEP Ignition Key Off Timer Performance Too Fast
Possible causes – Faulty Ignition Switch– Ignition Switch harness is open or shorted– Ignition Switch circuit poor electrical connection– Faulty Body Control Module (BCM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1001 JEEP OBD Code Description The Engine Control Module (ECM) has detected a power-on time issue when the ignition key…
P2096 JEEP Downstream Fuel Trim System 1 Lean
Possible causes – Faulty Heated Oxygen Sensor– Heated Oxygen Sensor harness is open or shorted– Heated Oxygen Sensor circuit poor electrical connection– Exhaust leaks– Contaminated Heated Oxygen Sensor Tech description Before replacing the Heated Oxygen Sensor, inspect the sensor connector for signs of damage, water ingress, or corrosion Symptoms – Engine Light ON (or Service…
P2097 JEEP Downstream Fuel Trim System 1 Rich
Possible causes – Faulty Heated Oxygen Sensor– Heated Oxygen Sensor harness is open or shorted– Heated Oxygen Sensor circuit poor electrical connection– Exhaust leaks– Contaminated Heated Oxygen Sensor Tech description Before replacing the Heated Oxygen Sensor, inspect the sensor connector for signs of damage, water ingress, or corrosion Symptoms – Engine Light ON (or Service…
P2098 JEEP Downstream Fuel Trim System 2 Lean
Possible causes – Faulty Heated Oxygen Sensor– Heated Oxygen Sensor harness is open or shorted– Heated Oxygen Sensor circuit poor electrical connection– Exhaust leaks– Contaminated Heated Oxygen Sensor Tech description Before replacing the Heated Oxygen Sensor, inspect the sensor connector for signs of damage, water ingress, or corrosion Symptoms – Engine Light ON (or Service…
P0141 JEEP O2 Sensor 1/2 Heater Performance
Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection– Faulty Engine Control Module (ECM) Tech description The…
P0037 JEEP O2 Sensor 1/2 Heater Circuit Low
Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection– Faulty Engine Control Module (ECM) Tech description The code…
P0038 JEEP O2 Sensor 1/2 Heater Circuit High
Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the obd…