Honda fault codes
Generic OBD2 codes work the same on this brand. Brand-specific codes depend on model and year.
How to read them
Use a basic OBD2 reader for generic codes. Brand-specific modules, such as airbag, comfort or transmission, usually need a multi-system scanner.
Brand-specific Honda codes
This list comes from an open data set and has not been checked model by model. Confirm any code with the manual or the brand’s diagnostic tool before replacing parts.
- P1106BARO Circuit Range Performance Malfunction
- P1107BARO Circuit Low Input
- P1108BARO Circuit High Input
- P1121Throttle Position Lower Than Expected
- P1122Throttle Position Higher Than Expected
- P1128MAP Lower Than Expected
- P1129MAP Higher Than Expected
- P1162HO2S11 Circuit Fault Bank 1 Sensor 1
- P1163HO2S11 Slow Response Bank 1 Sensor 1
- P1164HO2S11 Circuit Fault Bank 1 Sensor 1
- P1165HO2S11 Slow Response Bank 1 Sensor 1
- P1166HO2S11 Heater Circuit Fault Bank 1 Sensor 1
- P1167HO2S11 Heater Circuit VS+ Fault Bank 1 Sensor 1
- P1168HO2S11 Label Circuit Low Voltage Fault Bank 1 Sensor 1
- P1169HO2S11 Label Circuit High Voltage Fault Bank 1 Sensor 1
- P1201Cylinder 1 Misfire
- P1202Cylinder 2 Misfire
- P1203Cylinder 3 Misfire
- P1204Cylinder 4 Misfire
- P1205Cylinder 5 Misfire
- P1206Cylinder 6 Misfire
- P1241Throttle Vent Control Motor Circuit 1 Malfunction
- P1242Throttle Vent Control Motor Circuit 2 Malfunction
- P1243Throttle Position Insufficient
- P1244Closed Throttle Position Insufficient
- P1246Accelerator Position Sensor 1 Circuit Malfunction
- P1247Accelerator Position Sensor 2 Circuit Malfunction
- P1248Accelerator Position Sensors 1 & 2 Improper Correlation
- P1253VTEC System Circuit Fault
- P1259VTEC System Malfunction Rear Bank 1
- P1279VTEC System Malfunction Front Bank 2
- P1297ELD Circuit Low Input
- P1298Electrical Load Detector Circuit High Voltage
- P1300Random Misfire
- P1301Cylinder 1 Misfire
- P1302Cylinder 2 Misfire
- P1303Cylinder 3 Misfire
- P1304Cylinder 4 Misfire
- P1305Cylinder 5 Misfire
- P1306Cylinder 6 Misfire
- P1316Spark Plug Voltage Detection Circuit Malfunction Front Bank
- P1317Spark Plug Voltage Detection Circuit Malfunction Rear Bank
- P1318Spark Plug Voltage Detection Module Reset Circuit Malfunction Front Bank
- P1319Spark Plug Voltage Detection Module Reset Circuit Malfunction Rear Bank
- P1324Knock Sensor Power Source Circuit Low Voltage
- P1336CKP Sensor B Range Performance
- P1337CKP Sensor B Low Input
- P1359CKP TDC Sensor Circuit Connector Disconnection
- P1361TDC Sensor Intermittent Interruption
- P1362TDC1 Sensor No Signal
- P1366TDC2 Sensor Intermittent
- P1367TDC2 Sensor No Signal
- P1381CYP Sensor A Intermittent Interruption
- P1382CYP Sensor A No Signal
- P1386CYP Sensor B Intermittent Interruption
- P1387CYP Sensor B No Signal
- P1456Evaporative Emission Control System Leak Detected Fuel Tank System
- P1457Evaporative Emission Control System Leak Detected Control Canister System
- P1459EVAP Purge Flow Switch Malfunction
- P1491EGR Valve Lift Insufficient Detected
- P1498EGR Valve Lift Sensor High Voltage
- P1508IAC Valve Circuit Failure
- P1519IAC Valve Circuit Failure
- P1607ECM Internal Circuit Failure A
- P1608ECM Internal Circuit Failure B
- P1655TMA or TMB Signal Line Fault
- P1656Automatic Transmission System Malfunction
- P1660A/T FI Data Line Failure
- P1671A/T FI Data Line No Signal
- P1672A/T FI Data Line Failure
- P1676Traction Control System FI Data Line No Signal
- P1677Traction Control System FI Data Line Failure
- P1678FPTDR Signal Line Failure
- P1681A/T FI Signal A Low Input
- P1682A/T FI Signal A High Input
- P1686A/T FI Signal B Low Input
- P1687A/T FI Signal B High Input
- P1690Traction Control System STB Line Failure
- P1696Traction Control Fuel Cut Signal Low Input
- P1697Traction Control Fuel Cut Signal High Input
- P1705TCM A/T Gear Position Switch Circuit Shorted
- P1706TCM A/T Gear Position Switch Circuit Open
- P1709Automatic Transmission System Malfunction
- P1738Automatic Transmission System Malfunction
- P1739Automatic Transmission System Malfunction
- P1753TCM A/T Lockup Solenoid Valve "A" Fault
- P1758TCM A/T Lockup Solenoid Valve "B" Fault
- P1768Automatic Transmission System Malfunction
- P1773Automatic Transmission System Malfunction
- P1788Automatic Transmission System Malfunction
- P1790TCM A/T TP Sensor Circuit Fault
- P1791TCM A/T Vehicle Speed Sensor Circuit Fault
- P1793Automatic Transmission System Malfunction
- P1795Automatic Transmission System Malfunction
Generic codes with notes about Honda
- P0339Crankshaft Position Sensor A Circuit Intermittent
- P0385Crankshaft Position Sensor B Circuit
- P0386Crankshaft Position Sensor B Circuit Range/Performance
- P0387Crankshaft Position Sensor B Circuit Low
- P0388Crankshaft Position Sensor B Circuit High
- P0389Crankshaft Position Sensor B Circuit Intermittent
- P0441EVAP System Incorrect Purge Flow
- P0718Input/Turbine Shaft Speed Sensor A Circuit Intermittent
- P0761Shift Solenoid C Performance/Stuck Off
- P0762Shift Solenoid C Stuck On
- P0777Pressure Control Solenoid B Stuck On
- P0780Shift Error
- P07833-4 Shift
- P0812Reverse Input Circuit
- P0901Clutch A Actuator Control Circuit Range/Performance
- P0A11DC/DC Converter Enable Circuit/Open
- P0A14Engine Mount A Control Circuit/Open
- P0A15Engine Mount A Control Circuit Low
- P0A16Engine Mount A Control Circuit High
- P0A17Motor Torque Sensor Circuit
- P0A18Motor Torque Sensor Circuit Range/Performance
- P0A19Motor Torque Sensor Circuit Low
- P0A20Motor Torque Sensor Circuit High
- P0A21Motor Torque Sensor Circuit Intermittent
- P0A22Generator Torque Sensor Circuit
- P0A23Generator Torque Sensor Circuit Range/Performance
- P0A24Generator Torque Sensor Circuit Low
- P0A25Generator Torque Sensor Circuit High
- P0A26Generator Torque Sensor Circuit Intermittent
- P0A27Hybrid/EV Battery Power Off Circuit
- P0A3CDrive Motor A Inverter Over Temperature
- P0A3EGenerator Inverter Over Temperature
- P0A7FHybrid/EV Battery Pack Deterioration
- P0A80Replace Hybrid/EV Battery Pack
- P0A82Hybrid/EV Battery Pack Cooling Fan 1 Performance/Stuck Off
- P0A97Hybrid/EV Battery Pack Cooling Fan 2 Performance/Stuck Off
- P0AB6Engine Mount B Control Circuit/Open
- P0AB7Engine Mount B Control Circuit Low
- P0AB8Engine Mount B Control Circuit High
- P0AD0Hybrid/EV Battery Pack Cooling Fan 3 Performance/Stuck Off
Generic codes common to every make
- P0420Catalyst System Efficiency Below Threshold Bank 1
- P0300Random/Multiple Cylinder Misfire Detected
- P0171System Too Lean Bank 1
- P0299Turbocharger/Supercharger A Underboost Condition
- P0401EGR A Flow Insufficient Detected
- P0101Mass or Volume Air Flow Sensor A Circuit Range/Performance
- P0340Camshaft Position Sensor A Circuit Bank 1 or Single Sensor
- P0128Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
- P0700Transmission Control System (MIL Request)
- P0087Fuel Rail/System Pressure - Too Low