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
P1029
Intake Manifold Air Control Valve Position Sensor Upper Limit Not Reached
Honda
Fuel and Air Metering
High severity
P1032
HO2S Heater Warm Up Control Circuit Banks 1 and 2 Sensor 1
Honda
Fuel and Air Metering
Medium severity
P1034
Nitrogen Oxides Sensor Signal Outside Tolerance
Honda
Auxiliary Emissions Control
Medium severity
P1035
Nitrogen Oxides Sensor Range Performance Problem
Honda
Auxiliary Emissions Control
Medium severity
P1051
Brake Switch Signal Missing or Improper
Honda
Vehicle Speed and Idle Control System
High severity
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