P2641 Buick Torque Management Feedback (Signal B) OBD Code: System: Subsystem: P2641 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Torque Management Feedback (Signal B) Location: Analysis: Possible Causes: Signal B Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century –…
Category: Buick
P2634 Buick Fuel Pump B Control Circuit High
P2635 Buick Fuel Pump A Low Flow / Performance OBD Code: System: Subsystem: P2635 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Fuel Pump A Low Flow / Performance Location: Analysis: Possible Causes: Pump A Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick…
P2635 Buick Fuel Pump A Low Flow / Performance
P2636 Buick Fuel Pump B Low Flow / Performance OBD Code: System: Subsystem: P2636 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Fuel Pump B Low Flow / Performance Location: Analysis: Possible Causes: Pump B Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick…
P2636 Buick Fuel Pump B Low Flow / Performance
P2637 Buick Torque Management Feedback (Signal A) OBD Code: System: Subsystem: P2637 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Torque Management Feedback (Signal A) Location: Analysis: Possible Causes: Signal A Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century –…
P2633 Buick Fuel Pump B Control Circuit Low
P2634 Buick Fuel Pump B Control Circuit High OBD Code: System: Subsystem: P2634 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Fuel Pump B Control Circuit High Location: Analysis: Possible Causes: Pump B End of Range – Circuit Higher Than Expected Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick…
P2631 Buick Front Air/Fuel Ratio Sensor Bank 2 Sensor 1 Circuit High Voltage
P2632 Buick Fuel Pump B Control Circuit / Open OBD Code: System: Subsystem: P2632 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Fuel Pump B Control Circuit / Open Location: Analysis: Possible Causes: Open Circuit Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick…
P2632 Buick Fuel Pump B Control Circuit / Open
P2633 Buick Fuel Pump B Control Circuit Low OBD Code: System: Subsystem: P2633 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Fuel Pump B Control Circuit Low Location: Analysis: Possible Causes: Pump B End of Range – Circuit Lower Than Expected Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick…
P2629 Buick Oxygen (O2) Sensor Pumping Current Trim Circuit / Open (Bank 2 – Sensor 1)
P262A Buick Fuel Injector – Pilot Injection Not Learned Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick…
P262A Buick Fuel Injector – Pilot Injection Not Learned
P2630 Buick Oxygen (O2) Sensor Pumping Current Trim Circuit Low (Bank 2 – Sensor 1) OBD Code: System: Subsystem: P2630 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Oxygen (O2) Sensor Pumping Current Trim Circuit Low (Bank 2 – Sensor 1) Location: Analysis: Possible Causes: Oxygen Sensor – Bank 2 – Sensor…
P2630 Buick Oxygen (O2) Sensor Pumping Current Trim Circuit Low (Bank 2 – Sensor 1)
P2631 Buick Front Air/Fuel Ratio Sensor Bank 2 Sensor 1 Circuit High Voltage Possible causes – Front Air/Fuel Ratio Sensor Bank 2 Sensor 1 harness is open or shorted– Front Air/Fuel Ratio Sensor Bank 2 Sensor 1 circuit poor electrical connection– Faulty Front Air/Fuel Ratio Sensor Bank 2 Sensor 1 Symptoms – Engine Light ON…
P2625 Buick Injector Control Pressure Regulator Circuit High
P2626 Buick Oxygen (O2) Sensor Pumping Current Trim Circuit / Open (Bank 1 – Sensor 1) OBD Code: System: Subsystem: P2626 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Oxygen (O2) Sensor Pumping Current Trim Circuit / Open (Bank 1 – Sensor 1) Location: Analysis: Possible Causes: Oxygen Sensor – Bank 1…
P2626 Buick Oxygen (O2) Sensor Pumping Current Trim Circuit / Open (Bank 1 – Sensor 1)
P2627 Buick Oxygen (O2) Sensor Pumping Current Trim Circuit Low (Bank 1 – Sensor 1) OBD Code: System: Subsystem: P2627 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Oxygen (O2) Sensor Pumping Current Trim Circuit Low (Bank 1 – Sensor 1) Location: Analysis: Possible Causes: Oxygen Sensor – Bank 1 – Sensor…
P2627 Buick Oxygen (O2) Sensor Pumping Current Trim Circuit Low (Bank 1 – Sensor 1)
P2628 Buick Oxygen (O2) Sensor Pumping Current Trim Circuit High (Bank 1 – Sensor 1) OBD Code: System: Subsystem: P2628 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Oxygen (O2) Sensor Pumping Current Trim Circuit High (Bank 1 – Sensor 1) Location: Analysis: Possible Causes: Oxygen Sensor – Bank 1 – Sensor…
P2628 Buick Oxygen (O2) Sensor Pumping Current Trim Circuit High (Bank 1 – Sensor 1)
P2629 Buick Oxygen (O2) Sensor Pumping Current Trim Circuit / Open (Bank 2 – Sensor 1) OBD Code: System: Subsystem: P2629 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Oxygen (O2) Sensor Pumping Current Trim Circuit / Open (Bank 2 – Sensor 1) Location: Analysis: Possible Causes: Oxygen Sensor – Bank 2…
P2622 Buick Throttle Position Output Circuit High
P2623 Buick Injector Control Pressure Regulator Circuit / Open OBD Code: System: Subsystem: P2623 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Injector Control Pressure Regulator Circuit / Open Location: Analysis: Possible Causes: Open Circuit Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick…
P2623 Buick Injector Control Pressure Regulator Circuit / Open
P2624 Buick Injector Control Pressure Regulator Circuit Low OBD Code: System: Subsystem: P2624 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Injector Control Pressure Regulator Circuit Low Location: Analysis: Possible Causes: End of Range – Circuit Lower Than Expected Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse…
P2624 Buick Injector Control Pressure Regulator Circuit Low
P2625 Buick Injector Control Pressure Regulator Circuit High OBD Code: System: Subsystem: P2625 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Injector Control Pressure Regulator Circuit High Location: Analysis: Possible Causes: End of Range – Circuit Higher Than Expected Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse…
P261D Buick Coolant Pump B Control Circuit High
P2620 Buick Throttle Position Output Circuit / Open OBD Code: System: Subsystem: P2620 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Throttle Position Output Circuit / Open Location: Analysis: Possible Causes: Open Circuit Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick…
P2620 Buick Throttle Position Output Circuit / Open
P2621 Buick Throttle Position Output Circuit Low OBD Code: System: Subsystem: P2621 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Throttle Position Output Circuit Low Location: Analysis: Possible Causes: End of Range – Circuit Lower Than Expected Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David…
P2621 Buick Throttle Position Output Circuit Low
P2622 Buick Throttle Position Output Circuit High OBD Code: System: Subsystem: P2622 Buick – (ASE) Powertrain Computer and Auxiliary Output Circuits Trouble Code Description: Throttle Position Output Circuit High Location: Analysis: Possible Causes: End of Range – Circuit Higher Than Expected Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David…