OBD-II Trouble Codes
2 diagnostic trouble codes. Search by code or keyword.
Most Common OBD-II Trouble Codes
P0128P0128 Coolant Temperature Below Thermostat RegulationMinorP0171P0171 Fuel Trim System Too Lean (Bank 1)MinorP0174P0174 OBD-II: System Too LeanModerateP0300P0300 Random/Multiple Cylinder Misfire DetectedSeriousP0401P0401 Exhaust Gas Recirculation "A" Flow Insufficient DetectedSeriousP0420P0420 Catalyst System Low EfficiencyModerateP0440P0440 Evaporative Emission System MalfunctionModerateP0442P0442 OBD-II: Small Leak Detected in Evaporative Emission SystemModerate
U01
U0100 - U01FF (2)
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| Code | Description | Severity | |
|---|---|---|---|
| U0100 | U0100 Lost Communication with ECM/PCM "A" | Medium | |
| U0121 | U0121 Lost Communication with Anti-Lock Brake System (ABS) Control Module A | High |
