OBD fault code library

Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.

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Fault codes

P2622 Throttle Position Output Circuit High
Fuel and Air Metering High severity
P2626 O2 Sensor Pumping Current Trim Circuit/Open Bank1 Sensor 1
Fuel and Air Metering Medium severity
P2628 O2 Sensor Pumping Current Trim Circuit High Bank1 Sensor 1
Fuel and Air Metering Medium severity
P2630 O2 Sensor Pumping Current Trim Circuit Low Bank2 Sensor 1
Fuel and Air Metering Medium severity
P2637 Torque Management Feedback Signal A
Transmission System High severity
P2641 Torque Management Feedback Signal B
Transmission System High severity
P2643 Torque Management Feedback Signal B Low
Transmission System High severity
P2645 A Rocker Arm Actuator Ctrl Circuit/Open Bank1
Ignition System High severity
P2651 B Rocker Arm Actuator Sys Performance or Stuck Off Bank1
Ignition System High severity
P2652 B Rocker Arm Actuator Sys Stuck On Bank1
Ignition System High severity
P2655 A Rocker Arm Actuator Ctrl Circuit/Open Bank2
Ignition System High severity
P2657 A Rocker Arm Actuator Sys Stuck On Bank2
Ignition System High severity
P2661 B Rocker Arm Actuator Sys Performance or Stuck Off Bank2
Ignition System High severity
P2665 Fuel Shutoff Valve B Ctrl Circuit/Open
Fuel and Air Metering High severity
P2666 Fuel Shutoff Valve B Ctrl Circuit Low
Fuel and Air Metering High severity

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