Understanding Honda OBD2 codes is crucial for diagnosing and resolving issues with your vehicle. When your check engine light illuminates, it signifies that your Honda’s onboard diagnostic system has detected a problem. These codes, read using an OBD2 scanner, provide valuable insights into potential malfunctions, helping you pinpoint the source of the issue and take appropriate action.
This comprehensive guide lists common OBD2 codes for Honda vehicles, providing descriptions to help you understand what each code signifies. Addressing these codes promptly can prevent further damage and ensure your Honda runs smoothly and efficiently.
Honda OBD2 Trouble Codes List
- P0010 – Variable Valve Timing Control (VTC) Oil Control Solenoid Valve Malfunction
- P0011 – Variable Valve Timing Control (VTC) System Malfunction
- P0101 – Mass Airflow (MAF) Sensor Range/Performance Problem
- P0102 – Mass Airflow (MAF) Sensor Circuit Low Voltage
- P0103 – Mass Airflow (MAF) Sensor Circuit High Voltage
- P0106 – Manifold Absolute Pressure (MAP) Sensor Range/Performance Problem
- P0107 – Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
- P0108 – Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
- P0111 – Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem
- P0112 – Intake Air Temperature (IAT) Sensor Circuit Low Voltage
- P0113 – Intake Air Temperature (IAT) Sensor Circuit High Voltage
- P0116 – Engine Coolant Temperature (ECT) Sensor Circuit Range/Performance Problem
- P0117 – Engine Coolant Temperature (ECT) Sensor Circuit Low Input
- P0118 – Engine Coolant Temperature (ECT) Sensor Circuit High Input
- P0122 – Throttle Position (TP) Sensor Circuit Low Input
- P0123 – Throttle Position (TP) Sensor Circuit High Input
- P0125 – Engine Coolant Temperature (ECT) Sensor Slow Response
- P0128 – Cooling System Malfunction
- P0131 – Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) Circuit Low Voltage
- P0132 – Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) Circuit High Voltage
- P0133 – Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) Circuit Slow Response
- P0134 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) No Activity Detected
- P0135 – Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) Heater Circuit Malfunction
- P0137 – Secondary Heated Oxygen Sensor (Secondary HO2S) Circuit Low Voltage
- P0138 – Secondary Heated Oxygen Sensor (Secondary HO2S) Circuit High Voltage
- P0139 – Secondary Heated Oxygen Sensor (Secondary HO2S) Slow Response
- P0141 – Secondary Heated Oxygen Sensor (Secondary HO2S) (Sensor 2) Heater Circuit Malfunction
- P0143 – Third Heated Oxygen Sensor (Third HO2S) (Sensor 3) Circuit Low Voltage
- P0144 – Third Heated Oxygen Sensor (Third HO2S) (Sensor 3) Circuit High Voltage
- P0145 – Third Heated Oxygen Sensor (Third HO2S) (Sensor 3) Circuit Slow Response
- P0147 – Third Heated Oxygen Sensor (Third HO2S) (Sensor 3) Heater Circuit Malfunction
- P0153 – Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) Circuit Slow Response
- P0154 – Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) Heater System Malfunction
- P0155 – Front Air/Fuel Ratio (A/F) Sensor (Bank 2, Sensor 1) Heater Circuit Malfunction
- P0157 – Front Secondary Heated Oxygen Sensor (Secondary HO2S) (Bank 2, Sensor 2) Circuit Low Voltage
- P0158 – Front Secondary Heated Oxygen Sensor (Secondary HO2S) (Bank 2, Sensor 2) Circuit High Voltage
- P0159 – Front Secondary Heated Oxygen Sensor (Secondary HO2S) (Bank 2, Sensor 2) Circuit Slow Response
- P0161 – Front Secondary Heated Oxygen Sensor (Secondary HO2S) (Bank 2, Sensor 2) Heater Circuit Malfunction
- P0171 – Fuel System Too Lean
- P0172 – Fuel System Too Rich
- P0174 – Front Bank (Bank 2) Fuel System Too Lean
- P0175 – Front Bank (Bank 2) Fuel System Too Rich
- P0191 – Fuel Pressure Sensor Range/Performance Problem
- P0192 – Fuel Pressure Sensor Circuit Low Voltage
- P0193 – Fuel Pressure Sensor Circuit High Voltage
- P0196 – EOT Sensor/Range Performance Problem
- P0197 – EOT Sensor Circuit Low Voltage
- P0198 – EOT Sensor Circuit High Voltage
- P0222 – Throttle Position (TP) Sensor 2 Circuit Low Voltage
- P0223 – Throttle Position (TP) Sensor 2 Circuit High Voltage
- P0300 – Random Misfire Detected
- P0301 – Cylinder 1 Misfire Detected
- P0302 – Cylinder 2 Misfire Detected
- P0303 – Cylinder 3 Misfire Detected
- P0304 – Cylinder 4 Misfire Detected
- P0305 – Cylinder 5 Misfire Detected
- P0306 – Cylinder 6 Misfire Detected
- P0325 – Knock Sensor Circuit Malfunction
- P0335 – Crankshaft Position (CKP) Sensor Circuit No Signal
- P0336 – Crankshaft Position (CKP) Sensor Circuit Intermittent Interruption
- P0339 – Crankshaft Position (CKP) Sensor Circuit Intermittent Interruption
- P0340 – Camshaft Position (CMP) Sensor No Signal
- P0341 – Camshaft Position (CMP) Sensor A Intermittent Interruption
- P0341 – Variable Valve Timing Control (VTC) Phase Gap
- P0344 – Camshaft Position (CMP) Sensor Intermittent Interruption
- P0365 – Camshaft Position (CMP) Sensor B No Signal
- P0366 – Camshaft Position (CMP) Sensor B Intermittent Interruption
- P0369 – Camshaft Position (CMP) Sensor B Intermittent Interruption
- P0385 – Crankshaft Position (CKP) Sensor B No Signal
- P0389 – Crankshaft Position (CKP) Sensor B Intermittent Interruption
- P0401 – Exhaust Gas Recirculation (EGR) Insufficient Flow
- P0404 – Exhaust Gas Recirculation (EGR) Control Circuit Range/Performance Problem
- P0406 – Exhaust Gas Recirculation (EGR) Valve Position Sensor Circuit High Voltage
- P0410 – Secondary Air Injection System Malfunction
- P0411 – Secondary Air Injection System Incorrect Flow
- P0420 – Catalyst System Efficiency Below Threshold
- P0430 – Front Bank Catalyst System Efficiency Below Threshold (Bank 2)
- P0441 – Evaporative Emission (EVAP) Control System Incorrect Purge Flow
- P0442 – Evaporative Emission (EVAP) System Small Leak Detected
- P0443 – Evaporative Emission (EVAP) Canister Purge Valve Circuit Malfunction
- P0451 – Fuel Tank Pressure (FTP) Sensor Range/Performance Problem
- P0452 – Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage
- P0453 – Fuel Tank Pressure (FTP) Sensor Circuit High Voltage
- P0456 – Evaporative Emission (EVAP) System Very Small Leak Detected
- P0457 – Evaporative Emission (EVAP) System Leak Detected Fuel Fill Cap Loose/Off
- P0461 – Fuel Gauge Sending Unit Range/Performance Problem
- P0462 – Fuel Gauge Sending Unit Circuit Low Voltage
- P0463 – Fuel Gauge Sending Unit Circuit High Voltage
- P0496 – Evaporative Emission (EVAP) System High Purge Flow
- P0497 – Evaporative Emission (EVAP) System Low Purge Flow
- P0498 – Evaporative Emission (EVAP) Canister Vent Shut Valve Control Circuit Low Voltage
- P0499 – Evaporative Emission (EVAP) Canister Vent Shut Valve Control Circuit High Voltage
- P0500 – Vehicle Speed Sensor (VSS) Circuit Malfunction
- P0501 – Vehicle Speed Sensor (VSS) Range/Peformance Problem
- P0505 – Idle Control System Malfunction
- P0506 – Idle Control System RPM Lower Than Expected
- P0507 – Idle Control System RPM Higher Than Expected
- P0511 – Idle Air Control (IAC) Valve Circuit Malfunction
- P0521 – Engine Oil Pressure (EOP) Sensor Range/Performance Problem
- P0522 – Engine Oil Pressure (EOP) Sensor Circuit Low Voltage
- P0523 – Engine Oil Pressure (EOP) Sensor Circuit High Voltage
- P0560 – ECM Back-up Circuit Low Voltage
- P0563 – Engine Control Module (ECM)/Powertrain Control Module (PCM) Power Source Circuit Unexpected Voltage
- P0600 – Multiplex Control System Troubleshooting
- P0603 – ECM/PCM Internal Control Module Keep Alive Memory (KAM) Error
- P0606 – ECM/PCM Processor Malfunction
- P0661 – Intake Manifold Runner Control (IMRC) Valve Position Sensor Circuit Low Voltage
- P0662 – Intake Manifold Runner Control (IMRC) Valve Position Sensor Circuit High Voltage
- P0685 – ECM/PCM Power Relay Control Circuit Malfunction
- P0700 – Transmission Control System Malfunction
- P0705 – Short in Transmission Range Switch Circuit (Multiple Shift-position Input)
- P0706 – Open in Transmission Range Switch Circuit
- P0710 – ATF Temperature Sensor Circuit Malfunction
- P0711 – ATF Temperature Sensor Circuit Range/Performance Problem
- P0712 – ATF Temperature Sensor Circuit Low Voltage
- P0713 – ATF Temperature Sensor Circuit High Voltage
- P0715 – Mainshaft Speed Sensor Circuit Malfunction
- P0716 – Mainshaft Speed Sensor Circuit Range/Performance Problem
- P0717 – Mainshaft Speed Sensor Circuit No Signal Input
- P0718 – Mainshaft Speed Sensor Intermittent Failure
- P0720 – Countershaft Speed Sensor Circuit Malfunction
- P0721 – Countershaft Speed Sensor Circuit Range/Performance Problem
- P0722 – Countershaft Speed Sensor Circuit No Signal Input
- P0723 – Countershaft Speed Sensor Intermittent Failure
- P0725 – Engine Speed Input Circuit Malfunction
- P0730 – Incorrect Gear Ratio
- P0731 – 1st Gear Incorrect Ratio
- P0732 – 2nd Gear Incorrect Ratio
- P0733 – 3rd Gear Incorrect Ratio
- P0734 – 4th Gear Incorrect Ratio
- P0735 – 5th Gear Incorrect Ratio
- P0740 – Torque Converter Clutch Circuit Malfunction
- P0741 – Torque Converter Clutch Stuck Off
- P0743 – Torque Converter Clutch Circuit Electrical
- P0745 – Pressure Control Solenoid ‘A’ Malfunction
- P0746 – Pressure Control Solenoid ‘A’ Stuck Off
- P0747 – Pressure Control Solenoid ‘A’ Stuck On
- P0748 – Pressure Control Solenoid ‘A’ Electrical
- P0750 – Shift Solenoid ‘A’ Malfunction
- P0751 – Shift Solenoid ‘A’ Stuck Off
- P0752 – Shift Solenoid ‘A’ Stuck On
- P0753 – Shift Solenoid ‘A’ Electrical
- P0756 – Shift Solenoid ‘B’ Stuck Off
- P0757 – Shift Solenoid ‘B’ Stuck On
- P0758 – Shift Solenoid ‘B’ Electrical
- P0761 – Shift Solenoid ‘C’ Stuck Off
- P0762 – Shift Solenoid ‘C’ Stuck On
- P0763 – Shift Solenoid ‘C’ Electrical
- P0771 – Shift Solenoid ‘E’ Stuck Off
- P0773 – Shift Solenoid ‘E’ Electrical
- P0775 – Pressure Control Solenoid ‘B’ Malfunction
- P0776 – Pressure Control Solenoid ‘B’ Stuck Off
- P0777 – Pressure Control Solenoid ‘B’ Stuck On
- P0778 – Pressure Control Solenoid ‘B’ Electrical
- P0780 – Shift Malfunction
- P0795 – Pressure Control Solenoid ‘C’ Malfunction
- P0796 – Pressure Control Solenoid ‘C’ Stuck Off
- P0797 – Pressure Control Solenoid ‘C’ Stuck On
- P0798 – Pressure Control Solenoid ‘C’ Electrical
- P0812 – Reverse Input Circuit Malfunction
- P0842 – Transmission Fluid Pressure Switch ‘A’ Circuit Low
- P0843 – Transmission Fluid Pressure Switch ‘A’ Circuit High
- P0845 – Transmission Fluid Pressure Switch ‘B’ Circuit Malfunction
- P0847 – Transmission Fluid Pressure Switch ‘B’ Circuit Low
- P0848 – Transmission Fluid Pressure Switch ‘B’ Circuit High
- P0872 – Transmission Fluid Pressure Switch ‘C’ Circuit Low
- P0873 – Transmission Fluid Pressure Switch ‘C’ Circuit High
- P0962 – Pressure Control Solenoid ‘A’ Control Circuit Range/Performance
- P0963 – Pressure Control Solenoid ‘A’ Control Circuit Low
- P0966 – Pressure Control Solenoid ‘B’ Control Circuit Range/Performance
- P0967 – Pressure Control Solenoid ‘B’ Control Circuit Low
- P0970 – Pressure Control Solenoid ‘C’ Control Circuit Range/Performance
- P0971 – Pressure Control Solenoid ‘C’ Control Circuit Low
- P0973 – Shift Solenoid ‘A’ Control Circuit Low
- P0974 – Shift Solenoid ‘A’ Control Circuit High
- P0976 – Shift Solenoid ‘B’ Control Circuit Low
- P0977 – Shift Solenoid ‘B’ Control Circuit High
- P0979 – Shift Solenoid ‘C’ Control Circuit Low
- P0980 – Shift Solenoid ‘C’ Control Circuit High
- P0982 – Shift Solenoid ‘D’ Control Circuit Low
- P0983 – Shift Solenoid ‘D’ Control Circuit High
- P0985 – Shift Solenoid ‘E’ Control Circuit Low
- P0986 – Shift Solenoid ‘E’ Control Circuit High
- P1020 – Valve Pause System Stuck Off
- P1021 – Valve Pause System Stuck On
- P1025 – Valve Pause System Sticking Off
- P1026 – Valve Pause System Sticking On
- P1077 – Intake Manifold Runner Control (IMRC) System Malfunction (Low rpm)
- P1078 – Intake Manifold Runner Control (IMRC) System Malfunction (High rpm)
- P1106 – Barometric Pressure (BARO) Sensor Circuit Range/Performance Problem
- P1107 – Barometric Pressure (BARO) Sensor Circuit Low Voltage
- P1108 – Barometric Pressure (BARO) Sensor Circuit High Voltage
- P1121 – Throttle Position (TP) Sensor Lower Than Expected
- P1122 – Throttle Position (TP) Sensor Higher Than Expected
- P1128 – Manifold Absolute Pressure (MAP) Sensor Circuit Lower Than Expected
- P1129 – Manifold Absolute Pressure (MAP) Sensor Circuit Higher Than Expected
- P1130 – Demand for Changing Both Secondary Heated Oxygen Sensor (Secondary HO2S) (Sensor 2) and Third Heated Oxygen Sensor (Third HO2S) (Sensor 3)
- P1149 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) Range/Performance Problem
- P1149 – Air/Fuel Ratio Sensor (Sensor 1) Circuit Lean Range
- P1157 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) AFS Line High Voltage
- P1157 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) Circuit High Voltage
- P1157 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) Range/Performance Problem
- P1158 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) AFS- Terminal Low Voltage
- P1159 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) AFS+ Terminal Low Voltage
- P1162 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) Slow Response
- P1163 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) Slow Response
- P1163 – Air/Fuel Ratio Sensor (Sensor 1) Slow Response
- P1164 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) Range/Performance Problem
- P1164 – Air/Fuel Ratio (AF) Sensor (Sensor 1) Circuit Range/Performance
- P1165 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) Range/Performance Problem
- P1165 – Air/Fuel Ratio Sensor (Sensor 1) Circuit Range/Performance
- P1166 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) Heater System Electrical Problem
- P1166 – Heated Oxgen Sensor Sensor1 (Primary HO2S) Heater Circuit Malfunction
- P1167 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) Heater System Malfunction
- P1167 – Heated Oxygen Sensor Sensor1 (Primary LAF HO2S) Heater System Malfunction
- P1168 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) LABEL Low Voltage
- P1169 – Air/Fuel Ratio (A/F) Sensor (Sensor 1) LABEL High Voltage
- P1182 – Fuel Temperature Sensor Circuit Low Voltage
- P1183 – Fuel Temperature Sensor Circuit High Voltage
- P1253 – VTEC System Malfunction
- P1259 – VTEC System Malfunction
- P1297 – Electric Load Detector (ELD) Circuit Low Voltage
- P1298 – Electric Load Detector (ELD) Circuit High Voltage
- P1300 – Random Misfire Detected
- P1324 – Knock Sensor Power Source Circuit Low Voltage
- P1336 – Engine Speed (RPM) Fluctuation Sensor Intermittent Interruption
- P1337 – Engine Speed (RPM) Fluctuation Sensor No Signal
- P1355 – Front Ignition Coil Power Circuit Malfunction
- P1359 – Crankshaft Position (CKP)/Top Dead Center (TDC) Sensor Circuit Malfunction
- P1361 – Camshaft Position (CMP) Sensor A (Top Dead Center (TDC) Sensor) Intermittent Interruption
- P1361 – Top Dead Center (TDC) Sensor Intermittent Interruption
- P1362 – Camshaft Position (CMP) Sensor A (Top Dead Center (TDC) Sensor) No Signal
- P1362 – Top Dead Center (TDC) Sensor No Signal
- P1366 – Camshaft Position (CMP) Sensor B (Top Dead Center (TDC) Sensor) Intermittent Interruption
- P1366 – Top Dead Center (TDC) Sensor 2 Intermittent Interruption
- P1367 – Camshaft Position (CMP) Sensor B (Top Dead Center (TDC) Sensor) No Signal
- P1367 – Top Dear Center (TDC) Sensor 2 No Signal
- P1381 – Cylinder Position (CYP) Sensor Intermittent Interruption
- P1382 – Cylinder Position (CYP) Sensor No Signal
- P1410 – Air Pump Malfunction
- P1415 – Air Pump Electric Current Sensor Circuit Low Voltage
- P1416 – Air Pump Electric Current Sensor Circuit High Voltage
- P1420 – Nox Adsorptive Catalyst System Efficiency Below Threshold
- P1438 – Motor Drive Module (MDM) Overheating Signal Circuit
- P1438 – Motor Drive Module (MDM) Overheating
- P1439 – Motor Drive Module (MDM) Short Circuit Sensor Problem
- P1439 – Motor Drive Module (MDM) Short Circuit
- P1440 – IMA System Problem
- P1445 – Bypass Control Problem
- P1448 – Battery Module Overheating
- P1449 – Battery Module Overheating
- P1449 – Battery Cell Overheating
- P1449 – Battery Module Individual Voltage Input Deviation
- P1449 – Battery Module Deterioration
- P1449 – Battery Module Deviation
- P1454 – Fuel Tank Pressure (FTP) Sensor Range/Performance Problem
- P1456 – Evaporative Emissions (EVAP) Control System Leakage (Fuel Tank System)
- P1457 – Evaporative Emissions (EVAP) Control System Leakage (EVAP Canister System)
- P1459 – Evaporative Emission (EVAP) Purge Flow Switch Malfunction
- P1491 – Exhaust Gas Recirculation (EGR) Valve Insufficient Lift
- P1486 – Cooling System Malfunction
- P1491 – Exhaust Gas Recirculation (EGR) Valve Insufficient Lift
- P1498 – Exhaust Gas Recirculation (EGR) Valve Position Sensor Circuit High Voltage
- P1505 – Positive Crankcase Ventilation (PCV) Air Leakage
- P1508 – Idle Air Control Valve (IACV) Circuit Malfunction
- P1509 – Idle Air Control Valve (IACV) Circuit Failure
- P1519 – Idle Air Control Valve (IACV) Circuit Malfunction
- P1522 – Brake Booster Pressure Sensor Circuit Low Voltage
- P1523 – Brake Booster Pressure Sensor Circuit High Voltage
- P1524 – Brake Booster Pressure Sensor Range/Performance Problem
- P1541 – Climate Control Unit Signal Circuit Low Voltage
- P1542 – Climate Control Unit Signal Circuit High Voltage
- P1565 – Motor Commutation Signal Problem
- P1568 – Battery Module Individual Voltage Input Problem
- P1568 – Battery Module Temperature Signal Circuit Problem
- P1568 – Battery Cell Temperature Signal Circuit Problem
- P1572 – Motor Drive Module (MDM) Temperature Signal Circuit Low Input
- P1572 – Motor Drive Module (MDM) Temperature Signal Circuit High Input
- P1576 – Motor Drive Module (MDM) Voltge Signal Circuit Low Input
- P1577 – High Voltage Detection Signal Circuit Problem
- P1580 – Battery Current Circuit Problem
- P1581 – Motor Power Inverter (MPI) Module Current Signal Circuit Low Input
- P1581 – Motor Power Inverter (MPI) Module Current Signal Circuit High Input
- P1581 – Motor Power Inverter (MPI) Module Current Signal Circuit Problem
- P1582 – Motor Current U Phase Signal Circuit Low Input
- P1582 – Motor Current U Phase Signal Circuit High Input
- P1583 – Motor Current V Phase Signal Circuit Low Input
- P1583 – Motor Current V Phase Signal Circuit High Input
- P1584 – Motor Current W Phase Signal Circuit Low Input
- P1584 – Motor Current W Phase Signal Circuit High Input
- P1585 – Motor Current Signal Circuit Problem
- P1586 – Motor Power Inverter (MPI) Module Current Signal/Battery Current Signal Circuit Problem
- P1607 – Engine Control Module (ECM)/Powertrain Control Module (PCM) Internal Circuit Malfunction
- P1630 – Transmission Control Module Malfunction
- P1635 – Battery Condition Monitor (BCM) Module Problem
- P1639 – MOTB Signal Circuit Malfunction
- P1640 – ACTTRQ Motor Torque Signal Circuit Low Input
- P1641 – ACTTRQ Motor Torque Signal Circuit High Input
- P1642 – QBATT Battery Signal Circuit Low Input
- P1643 – QBATT Battery Signal Circuit High Input
- P1644 – MOTFSA Signal Malfunction
- P1645 – MOTFSB Signal Malfunction
- P1646 – MOTSTB Signal Malfunction
- P1647 – Power Command Signal Circuit Low Input
- P1647 – Power Command Signal Circuit High Input
- P1647 – Engine Torque Signal Circuit Low Input
- P1647 – Engine Torque Signal Circuit High Input
- P1647 – Mode Signal Circuit 1 Low Input
- P1647 – Mode Signal Circuit 1 High Input
- P1647 – Mode Signal Circuit 2 Problem
- P1647 – Engine Speed Signal Circuit Problem
- P1648 – Battery Condition Monitor (BCM) Module Communication Signal Circuit Problem
- P1648 – Motor Control Module (MCM) Communication Signal Circuit Problem
- P1655 – CVT-FI TMA/TMB Signal Line Failure
- P1656 – Problem in PCM-toVTM-4 Control Unit Communications Circuit
- P1660 – A/T-FI Data Line Failure/TCM – ECM Halt
- P1676 – FPTDR Signal Line Failure
- P1678 – FPTDR Signal Line Failure
- P1679 – RSCD Signal Circuit Malfunction
- P1681 – A/T FI Signal A Cicuit Low Voltage
- P1682 – A/T FI Signal A Circuit High Voltage
- P1683 – Throttle Valve Default Position Spring Performance Problem
- P1684 – Throttle Valve Return Spring Performance Problem
- P1686 – A/T FI Signal B Circuit Low Voltage
- P1687 – A/T FI Signal B Circuit High Voltage
- P1705 – Short in Transmission Range Switch Circuit (More than one range position is on at the same time)
- P1706 – Open in Transmission Range Switch Circuit
- P1709 – Problem Transmission Gear Selection Switch Circuit
- P1730 – Shift Control System Malfunction: Shift Solenoid Valve A and D Stuck OFF, Shift Solenoid Valve B Stuck ON, Shift Valves A, B, and D Stuck
- P1731 – Shift Control System Malfunction: Shift Solenoid Valve E Stuck ON, Shift Valve E Stuck, A/T Clutch Pressure Control Solenoid Valve A Stuck OFF
- P1732 – Shift Control System Malfunction: Shift Solenoid Valve B and C Stuck ON, Shift Valves B and C Stuck
- P1733 – Shift Control System Malfunction: Shift Solenoid Valve D Stuck ON, Shift Valve D Stuck, A/T Clutch Pressure Control Solenoid Valve C Stuck OFF
- P1734 – Shift Control System Malfunction: Shift Solenoid Valves B and C Stuck ON, Shift Valves B and C Stuck
- P1738 – 2nd Clutch Pressure Switch Circuit Malfunction
- P1739 – 3rd Clutch Pressure Switch Circuit Malfunction
- P1740 – 4th Clutch Pressure Switch Circuit Malfunction
- P1750 – Mechanical Problem in Hydraulic Control System of A/T Clutch Pressure Control Solenoid Valve Assemblies A and B, or Problem in the Hydraulic Control System
- P1751 – Mechanical Problem in Hydraulic Control System of Shift Solenoid Valve B and A/T Clutch Pressure Control Solenoid Valves A and B, or Problem in the Hydraulic Control System
- P1753 – Torque Converter Clutch Solenoid Valve Circuit Malfunction
- P1751 – Torque Converter Clutch Solenoid Valve B Circuit Malfunction
- P1768 – Torque Converter Clutch Solenoid Valve B Circuit Malfunction
- P1773 – Pressure Control Solenoid ‘B’ Electrical
- P1790 – Throttle Position (TP) Sensor Circuit Malfunction
- P1791 – Vehicle Speed Sensor (VSS) Range/Performance Problem
- P1792 – Engine Coolant Temperature (ECT) Sensor Circuit Malfunction
- P1793 – Manifold Absolute Pressure Sensor Circuit Malfunction
- P1870 – CVT Speed Change Control Valve Assembly Circuit Malfunction
- P1873 – CVT Pulley Pressure Control Valve Assembly Circuit Malfunction
- P1879 – CVT Start Clutch Pressure Control Valve Assembly Circuit Malfunction
- P1882 – Inhibitor Solenoid Circuit Malfunction
- P1884 – Secondary Gear Speed Sensor 2 Circuit Malfunction
- P1885 – CVT Drive Pulley Speed Sensor Circuit Malfunction
- P1886 – CVT Driven Pulley Speed Sensor Circuit Malfunction
- P1888 – CVT Speed Sensor Malfunction
- P1889 – CVT Speed Sensor 2 Circuit Malfunction
- P1890 – Shift Control System Malfunction
- P1891 – Start Clutch System Malfunction
- P1894 – CVT Speed Change Control Valve Circuit Malfunction
- P1895 – CVT Pulley Pressure Control Valve Circuit Malfunction
- P2101 – Throttle Actuator System Malfunction
- P2108 – Throttle Actuator Control Module Problem
- P2118 – Throttle Actuator Current Range/Performance Problem
- P2122 – Accelerator Pedal Position (APP) Sensor 1 (Throttle Position Sensor D) Circuit Low Voltage
- P2123 – Accelerator Pedal Position (APP) Sensor 1 (Throttle Position Sensor D) Circuit High Voltage
- P2127 – Accelerator Pedal Position (APP) Sensor 2 (Throttle Position Sensor E) Circuit Low Voltage
- P2128 – Accelerator Pedal Position (APP) Sensor 2 (Throttle Position Sensor E) Circuit High Voltage
- P2135 – Throttle Position (TP) Sensor 1/2 Incorrect Voltage Correlation
- P2138 – Accelerator Pedal Position (APP) Sensor 1/2 (Throttle Position Sensor D/E) Incorrect Voltage Correlation
- P2176 – Throttle Actuator Control System Idle Position Not Learned
- P2195 – O2 Sensor Signal Stuck Lean (Sensor 1)
- P2197 – O2 Sensor Signal Stuck Lean (Sensor 2, Bank 1)
- P2227 – Barometric Pressure (BARO) Sensor Circuit Range/Performance Problem
- P2228 – Barometric Pressure (BARO) Sensor Circuit Low Voltage
- P2229 – Barometric Pressure (BARO) Sensor Circuit High Voltage
- P2237 – O2 Sensor Signal Circuit High (Sensor 1, Bank 1)
- P2238 – O2 Sensor Signal Circuit Low (Sensor 1, Bank 1)
- P2238 – O2 Sensor Signal Circuit Low (Sensor 1, Bank 1)
- P2240 – O2 Sensor Signal Circuit High (Sensor 1, Bank 2)
- P2241 – O2 Sensor Signal Circuit Low (Sensor 1, Bank 2)
- P2243 – O2 Sensor Signal Circuit High (Sensor 1, Bank 1)
- P2245 – O2 Sensor Signal Circuit Low (Sensor 1, Bank 1)
- P2247 – O2 Sensor Signal Circuit High (Sensor 1, Bank 2)
- P2249 – O2 Sensor Signal Circuit Low (Sensor 1, Bank 2)
- P2251 – O2 Sensor Signal Circuit High (Sensor 1, Bank 1)
- P2252 – O2 Sensor Signal Circuit Low (Sensor 1)
- P2254 – O2 Sensor Signal Circuit High (Sensor 1, Bank 2)
- P2255 – O2 Sensor Signal Circuit Low (Sensor 1, Bank 2)
- P2279 – Intake Air System Leak
- P2413 – Exhaust Gas Recirculation (EGR) System Performance Problem
- P2422 – Evaporative Emission (EVAP) System Vent Valve Stuck Closed
- P2552 – Throttle Actuator Control System Relay Circuit Open
- P2627 – O2 Sensor Signal Circuit Low (Sensor 1, Bank 1)
- P2628 – O2 Sensor Signal Circuit High (Sensor 1, Bank 1)
- P2630 – O2 Sensor Signal Circuit Low (Sensor 1, Bank 2)
- P2631 – O2 Sensor Signal Circuit High (Sensor 1, Bank 2)
- P2646 – VTEC System Oil Pressure Switch Low Voltage
- P2647 – VTEC System Oil Pressure Switch High Voltage
- P2648 – VTEC Solenoid Valve Control Circuit Low
- P2649 – VTEC Solenoid Valve Control Circuit High
- P2769 – Torque Converter Clutch Circuit Low
- P2770 – Torque Converter Clutch Circuit High
- P2A00 – O2 Sensor Circuit Range/Performance (Sensor 1)
- P2A03 – O2 Sensor Circuit Range/Performance (Sensor 1, Bank 2)
- U0073 – Control Module Communication Bus Off
- U0107 – Lost Communication With Throttle Actuator Control Module
- U0121 – Lost Communication With Anti-Lock Brake System (ABS) Control Module
- U0155 – Lost Communication With Instrument Panel Control Module
It’s important to note that this list is not exhaustive and may not cover every possible OBD2 code for all Honda models. Always refer to your Honda’s service manual or a professional mechanic for specific diagnostic and repair procedures.
While this list provides descriptions, proper diagnosis often requires further investigation, including:
- Using an OBD2 Scanner: To confirm the code and check for any pending codes.
- Visual Inspection: Checking for any obvious signs of damage or wear to sensors and related components.
- Component Testing: Using a multimeter or other diagnostic tools to test sensor circuits and component functionality.
Disclaimer: This information is for informational purposes only and should not be considered professional automotive advice. Always consult with a qualified mechanic for diagnosis and repair of your Honda vehicle.
Understanding Code Obd2 Honda is the first step towards resolving car trouble. By using this guide and appropriate diagnostic tools, you can effectively troubleshoot and maintain your Honda vehicle.
