Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– Shorted sensor on 5 volt circuit When is the obd code mean? The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher than expected Symptoms – Engine Light ON (or…
Tag: JEEP
P0642 JEEP Sensor Reference Voltage 1 Circuit Low
Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– Shorted sensor on 5 volt circuit When is the obd code mean? The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is lower than expected Symptoms – Engine Light ON (or…
P0652 JEEP 5 Volt Sensor Reference 2 Circuit Low
Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– Shorted sensor on 5 volt circuit When is the obd code mean? The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is lower than expected
P0600 JEEP ECM Fault
Possible causes – Faulty Engine control Module (ECM)– Engine control Module(ECM) harness is open or shorted– Engine control Module (ECM) cicuit poor electricl connection– Low battery voltage Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0600 JEEP OBD Code Description Engine control Module (ECM) unable to communicate.
P1698 JEEP ECM Fault No CCD Message From TCM
Possible causes – Faulty Engine control Module (ECM)– Engine control Module(ECM) harness is open or shorted– Engine control Module (ECM) cicuit poor electricl connection– Low battery voltage Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1698 JEEP OBD Code Description Engine control Module (ECM) unable to communicate with Transmission Control Module (TCM)
C2101 JEEP Battery Voltage High
Possible causes – Faulty Engine Control Module (ECM)– Vehicle battery– Vehicle charging system– Faulty Anti-Lock Brake System Module Symptoms – ABS Warning Light ON C2101 JEEP OBD Code Description Anti-Lock Brake (ABS) Module detects system voltage is above 17 volts.
P0445 JEEP EVAP Purge Solenoid Circuit
Possible causes – Faulty Evaporative Emission (EVAP) Purge Solenoid Control– Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted– Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection When is the obd code mean? – An excessively high voltage signal is sent to Engine Control Module (ECM) through the valve Symptoms –…
P0478 JEEP High Voltage On The Engine Brake Driver
Possible causes – Faulty Engine Brake Driver Relay– Engine Brake Driver harness is open or shorted– Engine Brake Driver circuit poor electrical connection When is the obd code mean? The Engine Control Module (ECM) has detected that the signal from the engine brake driver output does not match the driver feedback signal. Symptoms – Engine…
P0685 JEEP Auto Shutdown Relay Control Circuit Failure
Possible causes – Faulty Engine Control Module (ECM) power relay– ECM power relay harness is open or shorted– ECM power relay circuit poor electrical connection– Faulty (ECM) Tech description Check all the ECM fuses, if the fuses are OK try replacing the ASD relay. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)…
P0657 JEEP Solenoid Supply Voltage Circuit
Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– ECM Programming Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0657 JEEP OBD Code Description The Transmission Control Moduel (TCM) has detected a voltage supply fault to the hydraulic control unit