| CODE |
VEHICLE |
DEFINITION |
| 1 |
86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra |
Oxygen 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+ Integra |
MAP Sensor (Manifold Absolute Pressure) defective circuit or unplugged / defective sensor |
| 4 |
88-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra |
CKP Sensor (Crankshaft Position Sensor) defective circuit or unplugged / defective sensor |
| 5 |
86-98 Civic*
97-98 CRV
85-98 Prelude
94+ Integra |
MAP Sensor (Manifold Absolute Pressure) mechanical problem / disconnected piping
* not 94-95 |
| 6 |
86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra |
ECT Sensor (Engine Coolant Temperature) defective circuit or unplugged / defective sensor |
| 7 |
86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra |
TP Sensor (Throttle Position) defective circuit or unplugged / defective sensor |
| 8 |
86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra |
TDC Sensor (Top Dead Center) defective circuit or unplugged / defective sensor |
| 9 |
86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra |
CYP 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+ Integra |
IAT Sensor (Intake Air Temperature) defective circuit or unplugged / defective sensor |
| 12 |
86-98 Civic
85-98 Prelude
94+ Integra |
EGR 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+ Integra |
BARO Sensor (Atmospheric Pressure) defective circuit or unplugged / defective sensor |
| 14 |
88-98 Civic
97-98 CRV
88-98 Prelude
94+ Integra |
IAC Valve (Idle Air Control) defective circuit or unplugged / defective sensor |
| 15 |
88-95 Civic
88-95 Prelude
94+ Integra |
Ignition Output Signal missing or defective ignition output signal |
| 16 |
88-95 Civic
88-85 Prelude
94+ Integra |
Fuel Injector System defective circuit or unplugged / defective fuel injector |
| 17 |
88-98 Civic
97-98 CRV
88-98 Prelude
94+ Integra |
VSS (Vehicle Speed Sensor) defective circuit or unplugged / defective sensor |
| 19 |
88-95 Civic
94+ Integra |
Automatic Transmission Lock Up Control Solenoid Valve defective circuit or unplugged / defective solenoid valve |
| 20 |
88-98 Civic
97-98 CRV
92-98 Prelude
94+ Integra |
Electrical Load Detector defective circuit or unplugged / defective sensor |
| 21 |
92-95 Civic
93-95 Prelude
94+ Integra |
VTEC 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+ Integra |
VTEC 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+ Integra |
KS (Knock Sensor) defective circuit or unplugged / defective sensor
* invalid code for V6 engine |
| 30 |
92-98 Prelude
94+ Integra |
Automatic 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+ Integra |
Primary Oxygen Sensor - Heater circuit malfunction |
| 43 |
92-95 Civic
90-95 Prelude
94+ Integra |
Fuel Supply System defective or malfunctioning fuel supply system |
| 45 |
96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra |
System Too Lean or Too Rich malfunction in the fuel monitoring systems |
| 48 |
92-98 Civic
94+ Integra |
LAF Sensor (Lean Air Fuel) defective circuit or unplugged / defective sensor |
| 54 |
96-98 Civic
97-98 CRV
94+ Integra |
CKF Sensor (Crankshaft Speed Fluctuation) defective circuit or unplugged / defective sensor |
| 61 |
96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra |
Oxygen Sensor, Heated - Sensor 1 (Primary) high voltage, low voltage, or slow response |
| 63 |
96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra |
Oxygen Sensor, Heated - Sensor 2 (Secondary) high voltage, low voltage, or slow response |
| 65 |
96-98 Civic
97-98 CRV96-98 Prelude
94+ Integra |
Oxygen Sensor Heater (Secondary) malfunctioning or defective oxygen sensor heater |
| 67 |
96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra |
Catalyst system Efficiency Below Threshold malfunctioning or defective catalyst system |
| 70 |
96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra |
Automatic Transmission malfunction with the automatic transmission controls |
| 71 |
96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra |
Cylinder 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+ Integra |
Cylinder 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+ Integra |
Cylinder 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+ Integra |
Cylinder 4 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire |
| 80 |
96-98 Civic
96-98 Prelude
94+ Integra |
Exhaust Gas Recirculation insufficient flow detected |
| 86 |
96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra |
ECT Sensor (Engine Coolant Temperature) circuit range / performance problem |
| 90 |
96-98 Civic
97-98 Prelude
94+ Integra |
Evaporative Emission Control System leak detected in the fuel tank area |
| 91 |
96-98 Civic
97-98 Prelude
94+ Integra |
Fuel Tank Pressure Sensor low input |
| 92 |
96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra |
Evaporative Emission Control System insufficient purge flow |
