Code | Accord | Civic | CRX | Prelude | Error |
1 | 85-98 | 86-98 | 85-91 | 85-98 | OxygenSensor " A" (Primary) defectivecircuit or unplugged / defective sensor |
2 | 85-89 | 86-87 | 85-87 | NA | OxygenSensor " B" defectivecircuit or unplugged / defective sensor |
3 | 85-98 | 86-98 | 85-91 | 85-98 | MAP Sensor(Manifold Absolute Pressure) defectivecircuit or unplugged / defective sensor |
4 | 90-98 | 88-98 | 88-91 | 85-98 | CKP Sensor(Crankshaft Position Sensor) defectivecircuit or unplugged / defective sensor |
5 | 85-98* | 86-98 | 85-91 | 85-98 | MAP Sensor(Manifold Absolute Pressure) mechanicalproblem / disconnected piping * exc 94-95 |
6 | 85-98 | 86-98 | 85-91 | 85-98 | ECT Sensor(Engine Coolant Temperature) defectivecircuit or unplugged / defective sensor |
7 | 85-98 | 86-98 | 85-91 | 85-98 | TP Sensor(Throttle Position) defectivecircuit or unplugged / defective sensor |
8 | 85-98 | 86-98 | 85-91 | 85-98 | TDC Sensor(Top Dead Center) defectivecircuit or unplugged / defective sensor |
9* | 85-98** | 86-98 | 85-91 | 85-98 | CYP Sensor(Cylinder) defectivecircuit or unplugged / defective sensor * not a valid code for any throttle body injection Hondas ** not a validcode for V-6 engines |
10 | 85-98 | 86-98 | 85-91 | 85-98 | IAT Sensor(Intake Air Temperature) defectivecircuit or unplugged / defective sensor |
12 | 85-98 | 86-98* | 85-91* | 85-98 | EGR LiftSensor (Exhaust Gas Recirculation) defectivecircuit or unplugged / defective sensor * not a validcode if car is not equipped with an EGR valve (some Civic models are not) |
13 | 85-98 | 86-98 | 85-91 | 85-98 | BARO Sensor(Atmospheric Pressure) defectivecircuit or unplugged / defective sensor |
14 | 88-98 | 88-98 | 88-91 | 88-98 | IAC Valve(Idle Air Control) defectivecircuit or unplugged / defective sensor |
15 | 90-95 | 88-95 | 88-91 | 88-95 | IgnitionOutput Signal missing ordefective ignition output signal |
16 | 90-95 | 88-95 | 88-91 | 88-95 | Fuel InjectorSystem defectivecircuit or unplugged / defective fuel injector |
17 | 88-98 | 88-98 | 88-91 | 88-98 | VSS (VehicleSpeed Sensor) defectivecircuit or unplugged / defective sensor |
19 | NA | 88-95 | 88-91 | NA | AutomaticTransmission Lock Up Control Solenoid Valve defectivecircuit or unplugged / defective solenoid valve |
20 | 90-98 | 88-98 | 88-91 | 92-98 | ElectricalLoad Detector defectivecircuit or unplugged / defective sensor |
21* | 94-98** | 92-95 | NA | 93-95 | VTEC SolenoidValve defectivecircuit or unplugged / defective solenoid valve * not a valid code if car does not have a VTEC engine ** not withV-6 engine |
22* | 94-98 | 92-98 | NA | 92-98 | VTEC OilPressure Switch defectivecircuit or unplugged / defective oil pressure switch * not a validcode if car does not have a VTEC engine |
23 | 98* | 96-98 | NA | 92-98 | KS (KnockSensor) defectivecircuit or unplugged / defective sensor * not a validcode if V-6 engine |
30 | 90-98* | NA | NA | 92-98* | AutomaticTransmission Signal: " A" / SEAF / SEFA / TMA or TMB defectivecircuit or unplugged / defective sensor * not a validcode for 1996 |
31 | 90-95 | NA | NA | 92-95 | AutomaticTransmission Signal " B" defectivecircuit or unplugged / defective sensor |
41 | 90-98 | 92-98 | NA | 90-98 | PrimaryOxygen Sensor - Heater circuit malfunction |
43 | 90-95 | 92-95 | NA | 90-95 | Fuel SupplySystem defectiveor malfunctioning fuel supply system |
45 | 96-98 | 96-98 | NA | 96-98 | SystemToo Lean or Too Rich malfunctionin the fuel monitoring systems |
48 | 98 | 92-98 | NA | NA | LAF Sensor(Lean Air Fuel) defectivecircuit or unplugged / defective sensor |
54 | 96 | 96-98 | NA | NA | CKF Sensor(Crankshaft Speed Fluctuation) defectivecircuit or unplugged / defective sensor |
58 | 98* | NA | NA | NA | TDC Sensor2 (Top Dead Center) defectivecircuit or unplugged / defective sensor * with V-6engine only |
61 | 96-98 | 96-98 | NA | 96-98 | OxygenSensor, Heated - Sensor 1 (Primary) high voltage,low voltage, or slow response |
63 | 96-98 | 96-98 | NA | 96-98 | OxygenSensor, Heated - Sensor 2 (Secondary) high voltage,low voltage, or slow response |
65 | 96-98 | 96-98 | NA | 96-98 | OxygenSensor Heater (Secondary) malfunctioningor defective oxygen sensor heater |
67 | 96-98 | 96-98 | NA | 96-98 | Catalystsystem Efficiency Below Threshold malfunctioningor defective catalyst system |
70 | 96-98 | 96-98 | NA | 96-98 | AutomaticTransmission malfunctionwith the automatic transmission controls |
71 | 96-98 | 96-98 | NA | 96-98 | Cylinder1 Misfire or a Random Misfire a conditionis present that is creating a cylinder misfire |
72 | 96-98 | 96-98 | NA | 96-98 | Cylinder2 Misfire or a Random Misfire a conditionis present that is creating a cylinder misfire |
73 | 96-98 | 96-98 | NA | 96-98 | Cylinder3 Misfire or a Random Misfire a conditionis present that is creating a cylinder misfire |
74 | 96-98 | 96-98 | NA | 96-98 | Cylinder4 Misfire or a Random Misfire a conditionis present that is creating a cylinder misfire |
75 | 98* | NA | NA | NA | Cylinder5 Misfire or a Random Misfire a conditionis present that is creating a cylinder misfire * valid codefor V-6 engine only |
76 | 98* | NA | NA | NA | Cylinder6 Misfire or a Random Misfire a conditionis present that is creating a cylinder misfire * valid codefor V-6 engine only |
80 | 96-98 | 96-98 | NA | 96-98 | ExhaustGas Recirculation insufficientflow detected |
86 | 96-98 | 96-98 | NA | 96-98 | ECT Sensor(Engine Coolant Temperature) circuit range/ performance problem |
90 | 97-98 | 96-98 | NA | 97-98 | EvaporativeEmission Control System leak detectedin the fuel tank area |
91 | 96-98 | 96-98 | NA | 97-98 | Fuel TankPressure Sensor low input |
92 | 96-98 | 96-98 | NA | 96-98 | EvaporativeEmission Control System insufficientpurge flow |