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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OBD DashX shows which problems come with each code, how often they show up in other vehicles, and how to fix them — step by step.
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Fault codes
P2229
High voltage detected in barometric pressure (BARO) sensor
Honda
Fuel and Air Metering
High severity
P2240
High voltage detected in air fuel ratio (AFR) sensor
Honda
Fuel and Air Metering
High severity
P2243
High voltage detected in air fuel ratio (AFR) sensor
Honda
Fuel and Air Metering
High severity
P2247
High voltage detected in air fuel ratio (AFR) sensor
Honda
Fuel and Air Metering
High severity
P2251
High voltage detected in air fuel ratio (AFR) sensor
Honda
Fuel and Air Metering
High severity
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