Possible causes – Intake air leaks– Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure– Lack of fuel– Faulty Mass Air Flow (MAF) sensor– Incorrect Positive Crankcase Ventilation (PCV) hose connection Tech description If the P0171 is combined with the P0174 code, it’s very likely that the problem…
Tag: BUICK
P1860 BUICK TCC PWM Solenoid Circuit Electrical
Possible causes – Faulty Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid– Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid harness is open or shorted– Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid circuit poor electrical connection When is the obd code mean? When the PCM detects a continuous open, short to…
U0101 BUICK Lost Communication With Transmission Control Module
Possible causes – Faulty Transmission Control Module (TCM)– TCM harness is open or shorted– TCM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0101 BUICK OBD Code Description Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications…
P0713 BUICK Transmission Fluid Temperature Sensor Circuit High Input
Possible causes – Faulty Transmission Fluid Temperature Sensor– Transmission Fluid Temperature Sensor harness is open or shorted– Transmission Fluid Temperature Sensor circuit poor electrical connection When is the obd code mean? Transmission Control Module (TCM) detects excessively high voltage from the fluid temperature sensor. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)–…
P0711 BUICK Transmission Fluid Temperature Sensor Circuit Range/Performance
Possible causes – Faulty Transmission Fluid Temperature Sensor– Transmission Fluid Temperature Sensor harness is open or shorted– Transmission Fluid Temperature Sensor circuit poor electrical connection When is the obd code mean? Transmission Control Module (TCM) detects excessively low or high voltage from the fluid temperature sensor. Symptoms – Engine Light ON (or Service Engine Soon…
P0712 BUICK Transmission Fluid Temperature Sensor Circuit Low Input
Possible causes – Faulty Transmission Fluid Temperature Sensor– Transmission Fluid Temperature Sensor harness is open or shorted– Transmission Fluid Temperature Sensor circuit poor electrical connection When is the obd code mean? Transmission Control Module (TCM) detects excessively low voltage from the fluid temperature sensor. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)–…
P0410 BUICK Secondary Air Injection System Malfunction
Possible causes – Faulty Vacuum hoses damaged– Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection– Air bypass solenoid leaking/blocked or stuck open/closed– Air diverter valve leaking/blocked or stuck open/closed Tech description Visually inspect AIR pump and AIR bypass valve harness and connector, if connector…
P0608 BUICK Vehicle Speed Output Circuit
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…
P1120 BUICK Throttle Position Sensor 1 Circuit
Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection– Throttle Position Sensor not properly adjusted When is the obd code mean? When the Powertrain Control Module (PCM) senses a signal voltage higher than the normal operating range of the sensor, the P1120…
P1121 BUICK Throttle Position Sensor Circuit Intermittent High Voltage
Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection– Throttle Position Sensor not properly adjusted When is the obd code mean? When the Powertrain Control Module (PCM) senses a signal voltage higher than the normal operating range of the sensor, the P1121…