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OBD-II codes
Meaning, symptoms, causes, diagnosis steps and repair cost for every OBD-II code.
Fuse boxes
Interactive, colour-coded fuse box diagrams generated from verified data.
Symptoms
Start from what the car does and narrow down the cause like a mechanic.
Vehicle specs
Oil capacity, tyre pressure, bulb types, torque values and known weak points.
Glossary
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Most viewed trouble codes
- P0420Catalyst System Efficiency Below Threshold (Bank 1)
- P0011"A" Camshaft Position – Timing Over-Advanced or System Performance (Bank 1)
- P0012"A" Camshaft Position – Timing Over-Retarded (Bank 1)
- P0016Crankshaft Position – Camshaft Position Correlation (Bank 1 Sensor A)
- P0021"A" Camshaft Position – Timing Over-Advanced or System Performance (Bank 2)
- P0087Fuel Rail/System Pressure – Too Low
- P0101Mass Air Flow Sensor Circuit Range/Performance
- P0102Mass or Volume Air Flow "A" Circuit Low Input
- P0106Manifold Absolute Pressure / Barometric Pressure Circuit Range/Performance
- P0113Intake Air Temperature Sensor 1 Circuit High (Bank 1)
- P0121Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance
- P0128Coolant Thermostat Below Regulating Temperature
Fuse box diagrams
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B1Body (manufacturer-specific)780 codesB2Body (manufacturer-specific)367 codesC1Chassis (manufacturer-specific)486 codesC2Chassis (manufacturer-specific)1 codesP00Fuel, air metering & auxiliary emission controls99 codesP01Fuel & air metering100 codesP02Fuel & air metering (injector circuit)100 codesP03Ignition system & misfires95 codesP04Auxiliary emission controls100 codesP05Vehicle speed, idle control & auxiliary inputs100 codesP06Computer & output circuits100 codesP07Transmission100 codesP08Transmission100 codesP09Transmission100 codesP0AHybrid propulsion30 codesP1Manufacturer-specific powertrain655 codesP2Fuel, air & emissions (P2)646 codesP3Ignition & auxiliary (P3)98 codesU0Network communication (generic)299 codesU1Network (manufacturer-specific)272 codesU2Network (manufacturer-specific)27 codes