OBD II DTCs ( HONDA)
Table Diacnostic trouble code (DTC)>> DTC.pdfCODE VEHICLE DEFINITION 1 86-98 Civic
97-98 CRV
85-98 Prelude
94+ IntegraOxygen Sensor "A" (Primary) defective circuit or unplugged / defective sensor 2 86-87 Civic Oxygen Sensor "B" defective circuit or unplugged / defective sensor 3 86-98 Civic
97-98 CRV
85-98 Prelude
94+ IntegraMAP Sensor (Manifold Absolute Pressure) defective circuit or unplugged / defective sensor 4 88-98 Civic
97-98 CRV
85-98 Prelude
94+ IntegraCKP Sensor (Crankshaft Position Sensor) defective circuit or unplugged / defective sensor 5 86-98 Civic*
97-98 CRV
85-98 Prelude
94+ IntegraMAP Sensor (Manifold Absolute Pressure) mechanical problem / disconnected piping
* not 94-95 6 86-98 Civic
97-98 CRV
85-98 Prelude
94+ IntegraECT Sensor (Engine Coolant Temperature) defective circuit or unplugged / defective sensor 7 86-98 Civic
97-98 CRV
85-98 Prelude
94+ IntegraTP Sensor (Throttle Position) defective circuit or unplugged / defective sensor 8 86-98 Civic
97-98 CRV
85-98 Prelude
94+ IntegraTDC Sensor (Top Dead Center) defective circuit or unplugged / defective sensor 9 86-98 Civic
97-98 CRV
85-98 Prelude
94+ IntegraCYP Sensor (Cylinder) defective circuit or unplugged / defective sensor
* invalid code for throttle body injection Hondas
** invalid code for V6 engines 10 86-98 Civic
97-98 CRV
85-98 Prelude
94+ IntegraIAT Sensor (Intake Air Temperature) defective circuit or unplugged / defective sensor 12 86-98 Civic
85-98 Prelude
94+ IntegraEGR Lift Sensor (Exhaust Gas Recirculation) defective circuit or unplugged / defective sensor
* invalid code for non-equipped EGR valve vehicles 13 86-98 Civic
97-98 CRV
85-98 Prelude
94+ IntegraBARO Sensor (Atmospheric Pressure) defective circuit or unplugged / defective sensor 14 88-98 Civic
97-98 CRV
88-98 Prelude
94+ IntegraIAC Valve (Idle Air Control) defective circuit or unplugged / defective sensor 15 88-95 Civic
88-95 Prelude
94+ IntegraIgnition Output Signal missing or defective ignition output signal 16 88-95 Civic
88-85 Prelude
94+ IntegraFuel Injector System defective circuit or unplugged / defective fuel injector 17 88-98 Civic
97-98 CRV
88-98 Prelude
94+ IntegraVSS (Vehicle Speed Sensor) defective circuit or unplugged / defective sensor 19 88-95 Civic
94+ IntegraAutomatic Transmission Lock Up Control Solenoid Valve defective circuit or unplugged / defective solenoid valve 20 88-98 Civic
97-98 CRV
92-98 Prelude
94+ IntegraElectrical Load Detector defective circuit or unplugged / defective sensor 21 92-95 Civic
93-95 Prelude
94+ IntegraVTEC Solenoid Valve defective circuit or unplugged / defective solenoid valve
* invalid code for non-VTEC engine
** invalid for V6 engine 22 92-98 Civic
93-98 Prelude
94+ IntegraVTEC Oil Pressure Switch defective circuit or unplugged / defective oil pressure switch
* invalid code for non-VTEC engine 23 96-98 Civic
92-98 Prelude
94+ IntegraKS (Knock Sensor) defective circuit or unplugged / defective sensor
* invalid code for V6 engine 30 92-98 Prelude
94+ IntegraAutomatic Transmission Signal: "A" / SEAF / SEFA / TMA or TMB defective circuit or unplugged / defective sensor
* invalid code for 1996 31 92-95 Prelude Automatic Transmission Signal "B" defective circuit or unplugged / defective sensor 41 92-98 Civic
97-98 CRV
90-98 Prelude
94+ IntegraPrimary Oxygen Sensor - Heater circuit malfunction 43 92-95 Civic
90-95 Prelude
94+ IntegraFuel Supply System defective or malfunctioning fuel supply system 45 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraSystem Too Lean or Too Rich malfunction in the fuel monitoring systems 48 92-98 Civic
94+ IntegraLAF Sensor (Lean Air Fuel) defective circuit or unplugged / defective sensor 54 96-98 Civic
97-98 CRV
94+ IntegraCKF Sensor (Crankshaft Speed Fluctuation) defective circuit or unplugged / defective sensor 61 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraOxygen Sensor, Heated - Sensor 1 (Primary) high voltage, low voltage, or slow response 63 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraOxygen Sensor, Heated - Sensor 2 (Secondary) high voltage, low voltage, or slow response 65 96-98 Civic
97-98 CRV96-98 Prelude
94+ IntegraOxygen Sensor Heater (Secondary) malfunctioning or defective oxygen sensor heater 67 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraCatalyst system Efficiency Below Threshold malfunctioning or defective catalyst system 70 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraAutomatic Transmission malfunction with the automatic transmission controls 71 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraCylinder 1 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 72 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraCylinder 2 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 73 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraCylinder 3 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 74 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraCylinder 4 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire 80 96-98 Civic
96-98 Prelude
94+ IntegraExhaust Gas Recirculation insufficient flow detected 86 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraECT Sensor (Engine Coolant Temperature) circuit range / performance problem 90 96-98 Civic
97-98 Prelude
94+ IntegraEvaporative Emission Control System leak detected in the fuel tank area 91 96-98 Civic
97-98 Prelude
94+ IntegraFuel Tank Pressure Sensor low input 92 96-98 Civic
97-98 CRV
96-98 Prelude
94+ IntegraEvaporative Emission Control System insufficient purge flow
