Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Powertrain Control System (PCM) Tech description The P0325 code means that the Knock Sensor is not working properly. Problems with the knock sensor will not cause an engine performance problems. Replacing the knock sensor usually…
Tag: GMC
P0327 GMC Knock Sensor Circuit Low Input
Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Powertrain Control System (PCM) Tech description The P0327 code means that the Knock Sensor is not working properly. Problems with the knock sensor will not cause an engine performance problems. Replacing the knock sensor usually…
P0332 GMC Knock Sensor 2 Circuit
Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Powertrain Control System (PCM) Tech description The P0332 code means that the Knock Sensor is not working properly. Problems with the knock sensor will not cause an engine performance problems. Replacing the knock sensor usually…
C0225 GMC Left Front Speed Sensor or Circuit Open
Possible causes – Faulty Left Front Speed Sensor– Left Front Speed Sensor harness is open or shorted– Left Front Speed Sensor circuit poor electrical connection– Faulty EBCM Symptoms – ABS Warning Light ON C0225 GMC OBD Code Description As the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal. The Electronic Brake…
C0226 GMC Missing Left Front Speed Signal
Possible causes – Faulty Left Front Speed Sensor– Left Front Speed Sensor harness is open or shorted– Left Front Speed Sensor circuit poor electrical connection– Faulty EBCM Symptoms – ABS Warning Light ON C0226 GMC OBD Code Description As the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal. The Electronic Brake…
C0227 GMC Erratic Left Front Speed Sensor
Possible causes – Faulty Left Front Speed Sensor– Left Front Speed Sensor harness is open or shorted– Left Front Speed Sensor circuit poor electrical connection– Faulty EBCM Symptoms – ABS Warning Light ON C0227 GMC OBD Code Description As the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal. The Electronic Brake…
P0650 GMC Malfunction Indicator Lamp Control Circuit Malfunction
Possible causes – Faulty Malfunction Indicator Lamp Bulb– Malfunction Indicator Lamp Bulb harness is open or shorted– Malfunction Indicator Lamp Bulb circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the obd code mean? If the fault detection circuit senses a voltage other than what is expected, the fault line status will change…
P0543 GMC Intake Air Heater Element Open
Possible causes – Faulty Intake Air Heater relay– Faulty Intake Air Heater– Intake Air Heater harness is open or shorted– Intake Air Heater circuit poor electrical connection When is the obd code mean? The Engine Control Module (ECM) sends a bias voltage on diagnostic circuits one and two. If this voltage is not pulled low…
P0640 GMC Manifold Intake Air Heater
Possible causes – Faulty Intake Air Heater– Intake Air Heater harness is open or shorted– Intake Air Heater circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0640 GMC OBD Code Description The intake air (IA) heater is located in the air inlet tube and is used to warm…
P0113 GMC Intake Air Temperature Circuit High Input
Possible causes – Faulty Intake Air Temperature (IAT) sensor– Dirty air filter– Intake Air Temperature (IAT) sensor harness is open or shorted– Intake Air Temperature (IAT) sensor circuit poor electrical connection When is the obd code mean? – An excessively high voltage from the sensor is sent to ECM. Symptoms – Engine Light ON (or…