- P251CPTO Enable Switch Circuit HighFull content
- P251DPTO Engine Shutdown Circuit/OpenFull content
- P251EPTO Engine Shutdown Circuit LowFull content
- P251FPTO Engine Shutdown Circuit HighFull content
- P2520A/C Request "A" Circuit LowFull content
- P2521A/C Request "A" Circuit HighFull content
- P2522A/C Request "B" CircuitFull content
- P2523A/C Request "B" Circuit LowFull content
- P2524A/C Request "B" Circuit HighFull content
- P2525Vacuum Reservoir Pressure Sensor CircuitFull content
- P2526Vacuum Reservoir Pressure Sensor Circuit Range/PerformanceFull content
- P2527Vacuum Reservoir Pressure Sensor Circuit LowFull content
- P2528Vacuum Reservoir Pressure Sensor Circuit HighFull content
- P2529Vacuum Reservoir Pressure Sensor Circuit IntermittentFull content
- P252AEngine Oil Quality Sensor CircuitFull content
- P252BEngine Oil Quality Sensor Circuit Range/PerformanceFull content
- P252CEngine Oil Quality Sensor Circuit LowFull content
- P252DEngine Oil Quality Sensor Circuit HighFull content
- P252EEngine Oil Quality Sensor Circuit Intermittent/ErraticFull content
- P252FEngine Oil Level Too HighFull content
- P2530Ignition Switch Run Position CircuitFull content
- P2531Ignition Switch Run Position Circuit LowFull content
- P2532Ignition Switch Run Position Circuit HighFull content
- P2533Ignition Switch Run/Start Position CircuitFull content
- P2534Ignition Switch Run/Start Position Circuit LowFull content
- P2535Ignition Switch Run/Start Position Circuit HighFull content
- P2536Ignition Switch Accessory Position CircuitFull content
- P2537Ignition Switch Accessory Position Circuit LowFull content
- P2538Ignition Switch Accessory Position Circuit HighFull content
- P2539Low Pressure Fuel System Sensor CircuitFull content
- P253APTO Sense Circuit/OpenFull content
- P253BPTO Sense Circuit Range/PerformanceFull content
- P253CPTO Sense Circuit LowFull content
- P253DPTO Sense Circuit HighFull content
- P253EPTO Sense Circuit Intermittent/ErraticFull content
- P253FEngine Oil DeterioratedFull content
- P2540Low Pressure Fuel System Sensor Circuit Range/PerformanceFull content
- P2541Low Pressure Fuel System Sensor Circuit LowFull content
- P2542Low Pressure Fuel System Sensor Circuit HighFull content
- P2543Low Pressure Fuel System Sensor Circuit IntermittentFull content
- P2544Torque Management Request Input Signal "A"Full content
- P2545Torque Management Request Input Signal "A" Range/PerformanceFull content
- P2546Torque Management Request Input Signal "A" LowFull content
- P2547Torque Management Request Input Signal "A" HighFull content
- P2548Torque Management Request Input Signal "B"Full content
- P2549Torque Management Request Input Signal "B" Range/PerformanceFull content
- P254APTO Speed Selector Sensor/Switch 1 Circuit/OpenFull content
- P254BPTO Speed Selector Sensor/Switch 1 Range/PerformanceFull content
- P254CPTO Speed Selector Sensor/Switch 1 Circuit LowFull content
- P254DPTO Speed Selector Sensor/Switch 1 Circuit HighFull content
- P254EPTO Speed Selector Sensor/Switch 1 Circuit Intermittent/ErraticFull content
- P254FEngine Hood Switch CircuitFull content
- P2550Torque Management Request Input Signal "B" LowFull content
- P2551Torque Management Request Input Signal "B" HighFull content
- P2552Throttle/Fuel Inhibit A CircuitFull content
- P2553Throttle/Fuel Inhibit A Circuit Range/PerformanceFull content
- P2554Throttle/Fuel Inhibit A Circuit LowFull content
- P2555Throttle/Fuel Inhibit A Circuit HighFull content
- P2556Engine Coolant Level Sensor/Switch CircuitFull content
- P2557Engine Coolant Level Sensor/Switch Circuit Range/PerformanceFull content
Other systems
This information follows the generic OBD-II definition and does not replace a vehicle-specific diagnosis. The severity rating is rule-based; an authorised diagnostic reading is required for a definitive answer.