Tag: CHEVROLET

Possible causes – Low engine coolant level– Faulty Engine Coolant Temperature (ECT) sensor– Faulty engine coolant thermostat– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection When is the obd code mean? When the Powertrain Control Module (PCM) senses a signal voltage higher than the…

Possible causes – Faulty Vehicle Speed Sensor– Vehicle speed sensor harness or connectors is open or shorted– Vehicle speed sensor circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? When the Powertrain Control Module (PCM) detects an unrealistically large drop in the vehicle speed, then DTC P0503 sets. Symptoms…

Possible causes – Faulty Wheel Speed Sensor– Wheel Speed Sensor harness is open or shorted– Wheel Speed Sensor circuit poor electrical connection When is the obd code mean? The Engine Control Module (ECM) detects an invalid rough road signal from the wheel speed sensor. P1396 CHEVROLET OBD Code Description The road situation is estimated with…

Possible causes – Fualty ECM– Wrong ECM for vehicle– Service program error When is the obd code mean? Engine Control Module (ECM) program does not recognize the vehicles id, or the id is missing in the ECM. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1681 CHEVROLET OBD Code Description This diagnostic…

Possible causes – Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 harness is open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit poor electrical connection– Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit fuse– Faulty Engine Control Module (ECM) When is…

Possible causes – Faulty Transmission Speed Sensor– Transmission Speed Sensor harness is open or shorted– Transmission Speed Sensor circuit poor electrical connection When is the obd code mean? Diagnostic Trouble Code (DTC) P0715 is detected when TCM or ECM does not receive the proper signal from the sensor. Symptoms – Engine Light ON (or Service…

Possible causes – Faulty Transmission Speed Sensor– Transmission Speed Sensor harness is open or shorted– Transmission Speed Sensor circuit poor electrical connection When is the obd code mean? Diagnostic Trouble Code (DTC) P0716 is detected when TCM or ECM does not receive the proper signal from the sensor. Symptoms – Engine Light ON (or Service…

Possible causes – Faulty Turbocharger Vane Position Control Solenoid– Turbocharger Vane Position Control Solenoid harness is open or shorted– Turbocharger Vane Position Control Solenoid circuit poor electrical connection– Faulty position sensor– Damaged turbocharger– Faulty PCM When is the obd code mean? The control module detects that the commanded state of the driver and the actual…

Possible causes – Faulty Vehicle Speed Sensor– Vehicle Speed Sensor harness is open or shorted– Vehicle Speed Sensor circuit poor electrical connection When is the obd code mean? If the fault detection circuit senses a voltage other than what is expected, the fault line status changes causing the P0608 to set. Symptoms – Engine Light…

Possible causes – Faulty Vehicle Speed Sensor– Vehicle speed sensor harness or connectors is open or shorted– Vehicle speed sensor circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? If the Powertrain Control Module (PCM) detects a low vehicle speed when there is a high engine speed in a…