Honda OBD Codes: Meaning & Fixes
Honda: 80 error codes with meaning, severity, likely causes and repair cost estimates.
44Codes
2.7Average severity
9%High or critical
16%DIY-friendly
Severity distribution
Generic codes with Honda data
Field data · Honda
Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.
Most viewed
P0300
Powertrain
The engine computer sees misfires that jump between cylinders or hit several cylinders at once.
High
P0420
Powertrain
The bank 1 catalytic converter no longer stores enough oxygen to clean the exhaust properly.
Low
P0430
Powertrain
The bank 2 converter on a V6, V8 or split-exhaust engine isn't cleaning the exhaust well enough.
Low
P0172
Powertrain
The engine computer is pulling as much fuel as it's allowed on bank 1 and the mixture is still…
Moderate
P0302
Powertrain
Cylinder 2 keeps misfiring. On inline engines it's a middle cylinder, so rule out coolant…
Moderate
P0303
Powertrain
Cylinder 3 is misfiring. Check whether it misses at idle or under load before you blame…
Moderate
All codes (4)
P0087
Powertrain
Measured fuel pressure has dropped well below what the engine computer is asking for.
High
P0300
Powertrain
The engine computer sees misfires that jump between cylinders or hit several cylinders at once.
High
P0751
Powertrain
Solenoid A is wired fine but its valve isn't doing its job, so gears are missing – often stuck…
High
P1362
Honda · Powertrain
The PCM gets no signal at all from the top dead center (TDC) sensor; stalling or a no-start…
High