Possible causes – Low transmission fluid level– Transmission cooling system concerns When is the obd code mean? When the Powertrain Control Module (PCM) detects a high transmission fluid temperature (TFT) for a long period of time, then code P0218 will set. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0218 BUICK OBD…
Tag: BUICK
P0522 BUICK Engine Oil Pressure Sensor Circuit Low Voltage
Possible causes – Low oil level or motor mechanical fault– Faulty Oil Pressure sensor– Oil Pressure Sensor harness is open or shorted– Oil Pressure Sensor circuit poor electrical connection When is the obd code mean? The P0522 is set when the Powertrain Control Module (PCM) senses a signal voltage lower than the normal operating range…
P0751 BUICK 1-2 Shift Solenoid Valve Performance – No First or Fourth Gear
Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty 1-2 Shift Solenoid valve– 1-2 Shift Solenoid valve harness or connectors– 1-2 Shift Solenoid valve circuit is open or shorted Tech description When the a transmission solenoid is stuck off, in most cases the problem is not the electrical part of the solenoid; the…
P2188 BUICK Fuel Trim System Rich at Idle
Possible causes – Leaking fuel pressure regulator– Leaking fuel injector When is the obd code mean? The average long term fuel trim values at idle are less than -30 percent for 10 seconds Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2188 BUICK OBD Code Description The engine control module (ECM) controls…
P0128 BUICK Engine Coolant Temperature Below Thermostat Regulating Temperature
Possible causes – Leaking or stuck open thermostat– Low engine coolant level– Insufficient warm up time– Faulty engine coolant temperature sensor– Engine coolant temperature sensor harness is open or shorted– Engine coolant temperature sensor circuit poor electrical connection Tech description If cooling system is not leaking and the fluid level is OK, replacing the thermostat…
P0562 BUICK System Voltage Low
Possible causes – Low battery charge– Battery defective– Loose or missing alternator drive belt– Faulty alternator– Open or short system voltage circuit Tech description Start by recharging or replacing the battery. When is the obd code mean? The Powertrain Control Module (PCM) has detected that the electrical system voltage level is too low. Symptoms –…
P0117 BUICK Engine Coolant Temperature Circuit Low Input
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 circuit poor electrical connection When is the obd code mean? An excessively low voltage from the sensor is sent to ECM. Symptoms –…
P0118 BUICK Engine Coolant Temperature Circuit High Input
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…
P0125 BUICK Insufficient Coolant Temperature for Closed Loop Fuel Control
Possible causes – Low engine coolant level– Leaking or stuck open thermostat– Faulty Engine Coolant Temperature (ECT) sensor– 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? The voltage sent to Powertrain Control Module (PCM) from the Engine Coolant…
P0521 BUICK Engine Oil Pressure Sensor/Switch Circuit Range/Performance
Possible causes – Low oil level or motor mechanical fault– Faulty oil pressure sensor– Oil Pressure Sensor harness is open or shorted– Oil Pressure Sensor circuit poor electrical connection When is the obd code mean? The P0521 is detected when the signal sent from oil pressure sensor to PCM goes out of range. Symptoms –…