Possible causes – Faulty Front Speed Sensor– Front Speed Sensor harness is open or shorted– Front Speed Sensor circuit poor electrical connection– Faulty EBCM Symptoms – ABS Warning Light ON C0229 BUICK OBD Code Description As the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal. The Electronic Brake Control Module (EBCM)…
Tag: BUICK
P0496 BUICK Evaporative Emission System Flow During Non-Purge
Possible causes – Faulty EVAP canister vent valve– Faulty EVAP canister pruge valve– Plugged EVAP canister condition– Faulty EVAP pressure sensor When is the obd code mean? The ECM has detected pressure in the EVAP system during a non-purge condition. P0496 BUICK OBD Code Description The evaporative emission (EVAP) control system limits fuel vapors from…
P1655 BUICK EVAP Purge Solenoid Control Circuit
Possible causes – Faulty EVAP Purge Solenoid– EVAP Purge Solenoid harness is open or shorted– EVAP Purge Solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1655 BUICK OBD Code Description The Powertrain Control Module (PCM) has detected an improper voltage level on the output driver module for…
P1646 BUICK EVAP Vent Solenoid Output Circuit
Possible causes – Faulty EVAP Vent Solenoid– EVAP Vent Solenoid harness is open or shorted– EVAP Vent Solenoid circuit poor electrical connection When is the obd code mean? The Powertrain Control Module (PCM) has detected the EVAP Vent Solenoid circuit was low Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1646 BUICK…
P0459 BUICK Evaporative Emission Purge Solenoid Control Circuit High Voltage
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? The Powertrain Control Module (PCM) has detected a high voltage on the canister purge solenoid with the driver…
P1404 BUICK Exhaust Gas Recirculation Closed Position Performance
Possible causes – Faulty Exhaust Gas Recirculation (EGR) valve– Carbon blockage of the pintle Tech description On some models, there is a service bulletin for the P1404 code that suggest reprogramming the Powertrain Control Module (PCM) to repair the problem. When is the obd code mean? While monitoring the Exhaust Gas Recirculation (EGR) valve pintle…
P1406 BUICK EGR Valve Pintle Position Circuit
Possible causes – Faulty Exhaust Gas Recirculation (EGR) valve– Carbon blockage of the pintle Tech description The P1406 code means that the EGR valve is 10% of the expected position by the Powertrain Control Module (PCM), usually caused by carbon built up n the EGR valve. Start by cleaning the EGR valve. When is the…
P0480 BUICK Cooling Fan Relay Control Circuit
Possible causes – Faulty fan control relay– Fan control relay harness is open or shorted– Fan control relay circuit poor electrical connection– Faulty cooling fan 1– Fan cooling fan harness is open or shorted– Fan cooling fan circuit poor electrical connection When is the obd code mean? The P0480 code is detected when the Powertrain…
P0481 BUICK Cooling Fan Relay 2 Control Circuit Malfunction
Possible causes – Faulty fan control relay– Faulty cooling fan 2– Fan control relay harness is open or shorted– Fan control relay circuit poor electrical connection– Fan cooling fan harness is open or shorted– Fan cooling fan circuit poor electrical connection When is the obd code mean? The P0481 code is detected when the Powertrain…
P0131 BUICK HO2S Circuit Low Voltage Bank 1 Sensor 1
Possible causes – Faulty Front Heated Oxygen Sensor (HO2S) Bank 1– Front Heated Oxygen Sensor (HO2S) Bank 1 harness is open or shorted– Front Heated Oxygen Sensor (HO2S) Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the Front Heated…