OBD-II code system
Powertrain codes (P)
Engine, transmission, fuel, ignition and emissions. By far the largest group, and where most check engine lights land.
1393 published codes in this system.
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Other codes in this system
These sit in blocks with too few published codes to justify their own page, so they are listed here in full.
- P0A00MediumMotor Electronics Coolant Temperature Sensor Circuit
- P0A7FHighHybrid Battery Pack Deterioration
- P0A80HighReplace Hybrid/EV Battery Pack
- P1693MediumCompanion Module DTC / Oil Control Valve (Manufacturer Specific)
- P1875Medium4WD Low Switch Circuit / Transmission (Manufacturer Specific)
- P2413MediumExhaust Gas Recirculation System Performance
- P2452MediumDiesel Particulate Filter Pressure Sensor "A" Circuit
- P2453MediumDiesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance
- P2454MediumDiesel Particulate Filter Pressure Sensor "A" Circuit Low
- P2455MediumDiesel Particulate Filter Pressure Sensor "A" Circuit High
- P2456MediumDiesel Particulate Filter Pressure Sensor "A" Circuit Intermittent/Erratic
- P2457MediumExhaust Gas Recirculation Cooling System Performance
- P2458MediumDiesel Particulate Filter Regeneration Duration
- P2459MediumDiesel Particulate Filter Regeneration Frequency
- P2460MediumDiesel Particulate Filter Pressure Sensor "B" Circuit Low
- P2461MediumDiesel Particulate Filter Pressure Sensor "B" Circuit High
- P2462MediumDiesel Particulate Filter Pressure Sensor "B" Circuit Intermittent/Erratic
- P2463MediumDiesel Particulate Filter Restriction - Soot Accumulation
- P253FLowEngine Oil Deteriorated
- P2626MediumO2 Sensor Pumping Current Trim Circuit/Open (Bank 1 Sensor 1)
- P2627MediumO2 Sensor Pumping Current Trim Circuit Low (Bank 1 Sensor 1)
- P2628MediumO2 Sensor Pumping Current Trim Circuit High (Bank 1 Sensor 1)
- P2629MediumO2 Sensor Pumping Current Trim Circuit/Open (Bank 2 Sensor 1)
- P2630MediumO2 Sensor Pumping Current Trim Circuit Low (Bank 2 Sensor 1)
- P2631MediumO2 Sensor Pumping Current Trim Circuit High (Bank 2 Sensor 1)
- P2A00MediumO2 Sensor Circuit Range/Performance (Bank 1, Sensor 1)
- P2A03MediumO2 Sensor Circuit Range/Performance (Bank 2, Sensor 1)
Grouped guides in this system
Some codes are best read together. These hubs cover a whole set at once and list every code in them.