6.
Honda OBD-II Diagnostic Trouble Codes (1996 and Later)
Plug scan tool into Data Link Connector (DLC), turn ignition to ON, and read code.
P0106--MAP Circuit Range Or Performance
P0107--MAP Circuit Low Input
P0108--MAP Circuit High Input
P0111--IAT Sensor Circuit Range/Performance
P0112--IAT Sensor Circuit Low Input
P0113--IAT Sensor Circuit High Input
P0116--ECT Circuit Range Or Performance
P0117--ECT Circuit Low Input
P0118--ECT Circuit High Input
P0122--TP Sensor Circuit Low Input
P0123--TP Sensor Circuit High Input
P0131--Primary HO2S Circuit Low Voltage (Sensor 1)
P0132--Primary HO2S Circuit High Voltage (Sensor 1)
P0133--Primary HO2S Circuit Slow Response (Sensor 1)
P0135--Front HO2S Heater Circuit Fault (Sensor 1)
P0137--Secondary HO2S Circuit Low Voltage (Sensor 2)
P0138--Secondary HO2S Circuit High Voltage (Sensor 2)
P0139--Secondary HO2S Circuit Slow Response (Sensor 2)
P0141--Secondary HO2S Heater Circuit Fault (Sensor 2)
P0171--System Too Lean
P0172--System Too Rich
P0300--Random Misfire
P0301--Misfire Cyl. 1 Or Random Misfire
P0302--Misfire Cyl. 2 Or Random Misfire
P0303--Misfire Cyl. 3 Or Random Misfire
P0304--Misfire Cyl. 4 Or Random Misfire
P0305--Misfire Cyl. 5 Or Random Misfire
P0306--Misfire Cyl. 6 Or Random Misfire
P0325--KS Circuit Malfunction
P0335--CKP Sensor Circuit Low Input
P0336--CKP Sensor Range/Performance
P0401--EGR Insufficient Flow Detected
P0420--Catalyst System Efficiency Below Threshold
P0441--EVAP Emission Control System Improper Purge Flow
P0451--Fuel Tank Pressure Sensor Range/Performance
P0452--Fuel Tank Pressure Sensor Circuit Low Input
P0453--Fuel Tank Pressure Sensor Circuit High Input
P0500--VSS Circuit Malfunction (M/T)
P0501--VSS Circuit Range/Performance (A/T)
P0505--ICS Malfunction
P0560--Powertrain Control Module (PCM) Backup Voltage Circuit Low Voltage
P0700--A/T Concerns
P0720--A/T Concerns
P0725--A/T Concerns
P0730--A/T Concerns
P0740--A/T Concerns
P0753--A/T Concerns
P0758--A/T Concerns
P0763--A/T Concerns
P0780--A/T Concerns
P1106--BARO Circuit Range/Performance
P1107--BARO Circuit Low Input
P1108--BARO Circuit High Input
P1121--Throttle Position Lower Than Expected
P1122--Throttle Position Higher Than Expected
P1128--MAP Lower Than Expected
P1129--MAP Higher Than Expected
P1149--Primary HO2S (Sensor 1) Circuit Range/Performance Problem
P1162--Primary HO2S (No. 1) Circuit Malfunction
P1163--Primary HO2S (No. 1) Circuit Slow Response
P1164--Primary HO2S (No. 1) Circuit Range/Performance
P1165--Primary HO2S (No. 1) Circuit Range/Performance
P1166--Primary HO2S (No. 1) Heater System Electrical
P1167--Primary HO2S (No. 1) Heater System
P1168--Primary HO2S (No. 1) LABEL Low Input
P1169--Primary HO2S (No. 1) LABEL High Input
P1253--VTEC System Malfunction
P1257--VTEC System Malfunction
P1258--VTEC System Malfunction
P1259--VTEC System Malfunction
P1297--Electrical Load Detector Circuit Low Input
P1298--Electrical Load Detector Circuit High Input
P1300--Multiple Cylinder Misfire Detected
P1336--CSF Sensor Intermittent Interruption
P1337--CSF Sensor No Signal
P1359--CKP/TDC Sensor Connector Disconnection
P1361--TDC Sensor Intermittent Interruption
P1362--TDC Sensor No Signal
P1366--TDC Sensor No. 2 Intermittent Interruption
P1367--TDC Sensor No 2 Signal
P1381--Cylinder Position Sensor Intermittent Interruption
P1382--Cylinder Position Sensor No Signal
P1456--EVAP Emission Control System Leak Detected (Fuel Tank System)
P1457--EVAP Emission Control System Leak Detected (Control Canister System)
P1459--EVAP Emission Purge Flow Switch Malfunction
P1486--Thermostat Range/Performance Problem
P1491--EGR Valve Lift Insufficient Detected
P1498--EGR Valve Lift Sensor High Voltage
P1508--IAC Valve Circuit Failure
P1509--IAC Valve Circuit Failure
P1519--Idle Air Control Valve Circuit Failure
P1607--ECM/PCM Internal Circuit Failure A
P1655--SEAF/SEFA/TMA/TMB Signal Line Failure
P1660--A/T FI Signal A Circuit Failure
P1676--FPTDR Signal Line Failure
P1678--FPTDR Signal Line Failure
P1681--A/T FI Signal A Low Input
P1682--A/T FI Signal A High Input
P1686--A/T FI Signal B Low Input
P1687--A/T FI Signal B High Input
P1705--A/T Concerns
P1706--A/T Concerns
P1738--A/T Concerns
P1739--A/T Concerns
P1753--A/T Concerns
P1758--A/T Concerns
P1768--A/T Concerns
P1773--A/T Concerns
P1785--A/T Concerns
P1786--A/T Concerns
P1790--A/T Concerns
P1791--A/T Concerns
P1792--A/T Concerns
P1793--A/T Concerns
P1794--A/T Concerns
P1870--A/T Concerns
P1873--A/T Concerns
P1879--A/T Concerns
P1885--A/T Concerns
P1886--A/T Concerns
P1888--A/T Concerns
P1890--A/T Concerns
P1891--A/T Concerns
OBD-II Code Definitions
Example:
P 0 1 0 1
1 2 3 4 5
1st digit
P = powertrain
B = Body
C = Chassis
2nd digit
0 = Standard
1 = Manufacturer specific
3rd digit
1 = Emission management
2 = Injector circuit
3 = Ignition
4 = Auxiliary emission
5 = Vehicle speed & idle control
6 = Computer & output circuit
7 = Transmission