This is a list of Honda OBD2 scanner “P” codes.
This applies to both OBD2a and OBD2b Honda vehicles.
|
“P” Code |
CEL Code |
Diagnosis |
|
P0106 |
5 |
MAP Circuit Range Or Performance |
|
P0107 |
3 |
MAP Circuit Low Input |
|
P0108 |
3 |
MAP Circuit High Input |
|
P0111 |
10 |
IAT Sensor Circuit Range/Performance |
|
P0112 |
10 |
IAT Sensor Circuit Low Input |
|
P0113 |
10 |
IAT Sensor Circuit High Input |
|
P0116 |
86 |
ECT Circuit Range Or Performance |
|
P0117 |
6 |
ECT Circuit Low Input |
|
P0118 |
6 |
ECT Circuit High Input |
|
P0122 |
7 |
TP Sensor Circuit Low Input |
|
P0123 |
7 |
TP Sensor Circuit High Input |
|
P0131 |
1 |
Primary HO2S Circuit Low Voltage (Sensor 1) |
|
P0132 |
1 |
Primary HO2S Circuit High Voltage (Sensor 1) |
|
P0133 |
61 |
Primary HO2S Circuit Slow Response (Sensor 1) |
|
P0135 |
41 |
Front HO2S Heater Circuit Fault (Sensor 1) |
|
P0137 |
63 |
Secondary HO2S Circuit Low Voltage (Sensor 2) |
|
P0138 |
63 |
Secondary HO2S Circuit High Voltage (Sensor 2) |
|
P0139 |
63 |
Secondary HO2S Circuit Slow Response (Sensor 2) |
|
P0141 |
65 |
Secondary HO2S Heater Circuit Fault (Sensor 2) |
|
P0171 |
45 |
System Too Lean |
|
P0172 |
45 |
System Too Rich |
|
P0300 |
— |
Random Misfire |
|
P0301 |
71 |
Misfire Cyl. 1 Or Random Misfire |
|
P0302 |
72 |
Misfire Cyl. 2 Or Random Misfire |
|
P0303 |
73 |
Misfire Cyl. 3 Or Random Misfire |
|
P0304 |
74 |
Misfire Cyl. 4 Or Random Misfire |
|
P0305 |
75 |
Misfire Cyl. 5 Or Random Misfire |
|
P0306 |
76 |
Misfire Cyl. 6 Or Random Misfire |
|
P0325 |
23 |
KS Circuit Malfunction |
|
P0335 |
4 |
CKP Sensor Circuit Low Input |
|
P0336 |
4 |
CKP Sensor Range/Performance |
|
P0401 |
80 |
EGR Insufficient Flow Detected |
|
P0420 |
67 |
Catalyst System Efficiency Below Threshold |
|
P0441 |
92 |
EVAP Emission Control System Improper Purge Flow |
|
P0451 |
91 |
Fuel Tank Pressure Sensor Range/Performance |
|
P0452 |
91 |
Fuel Tank Pressure Sensor Circuit Low Input |
|
P0453 |
91 |
Fuel Tank Pressure Sensor Circuit High Input |
|
P0500 |
17 |
VSS Circuit Malfunction (M/T) |
|
P0501 |
17 |
VSS Circuit Range/Performance (A/T) |
|
P0505 |
14 |
ICS Malfunction |
|
P0560 |
34 |
Powertrain Control Module (PCM) Backup Voltage Circuit Low Voltage |
|
P0700, P0715, P0720, P0725, P0730, P0740, |
70 |
Auto Transmission Related |
|
P1106 |
13 |
BARO Circuit Range/Performance |
|
P1107 |
13 |
BARO Circuit Low Input |
|
P1108 |
13 |
BARO Circuit High Input |
|
P1121 |
7 |
Throttle Position Lower Than Expected |
|
P1122 |
7 |
Throttle Position Higher Than Expected |
|
P1128 |
5 |
MAP Lower Than Expected |
|
P1129 |
5 |
MAP Higher Than Expected |
|
P1149 |
61 |
Primary HO2S (Sensor 1) Circuit Range/Performance Problem |
|
P1162 |
48 |
Primary HO2S (No. 1) Circuit Malfunction |
|
P1163 |
61 |
Primary HO2S (No. 1) Circuit Slow Response |
|
P1164 |
61 |
Primary HO2S (No. 1) Circuit Range/Performance |
|
P1165 |
61 |
Primary HO2S (No. 1) Circuit Range/Performance |
|
P1166 |
41 |
Primary HO2S (No. 1) Heater System Electrical |
|
P1167 |
41 |
Primary HO2S (No. 1) Heater System |
|
P1168 |
48 |
Primary HO2S (No. 1) LABEL Low Input |
|
P1169 |
48 |
Primary HO2S (No. 1) LABEL High Input |
|
P1253 |
21 |
VTEC System Malfunction |
|
P1257, P1258, P1259 |
22 |
VTEC System Malfunction |
|
P1297 |
20 |
Electrical Load Detector Circuit Low Input |
|
P1298 |
20 |
Electrical Load Detector Circuit High Input |
|
P1300 |
71–74 |
Multiple Cylinder Misfire Detected |
|
P1336 |
54 |
CSF Sensor Intermittent Interruption |
|
P1337 |
54 |
CSF Sensor No Signal |
|
P1359 |
8 |
CKP/TDC Sensor Connector Disconnection |
|
P1361 |
8 |
TDC Sensor Intermittent Interruption |
|
P1362 |
8 |
TDC Sensor No Signal |
|
P1366 |
58 |
TDC Sensor No. 2 Intermittent Interruption |
|
P1367 |
58 |
TDC Sensor No 2 Signal |
|
P1381 |
9 |
Cylinder Position Sensor Intermittent Interruption |
|
P1382 |
9 |
Cylinder Position Sensor No Signal |
|
P1456 |
90 |
EVAP Emission Control System Leak Detected (Fuel Tank System) |
|
P1457 |
90 |
EVAP Emission Control System Leak Detected (Control Canister System) |
|
P1459 |
92 |
EVAP Emission Purge Flow Switch Malfunction |
|
P1486 |
— |
Thermostat Range/Performance Problem |
|
P1491 |
12 |
EGR Valve Lift Insufficient Detected |
|
P1498 |
12 |
EGR Valve Lift Sensor High Voltage |
|
P1508 |
14 |
IAC Valve Circuit Failure |
|
P1509 |
14 |
IAC Valve Circuit Failure |
|
P1519 |
14 |
Idle Air Control Valve Circuit Failure |
|
P1607 |
— |
ECM/PCM Internal Circuit Failure A |
|
P1655 |
30 |
SEAF/SEFA/TMA/TMB Signal Line Failure |
|
P1660 |
70 |
A/T FI Signal A Circuit Failure |
|
P1676 |
— |
FPTDR Signal Line Failure |
|
P1678 |
— |
FPTDR Signal Line Failure |
|
P1681 |
30 |
A/T FI Signal A Low Input |
|
P1682 |
30 |
A/T FI Signal A High Input |
|
P1686 |
31 |
A/T FI Signal B Low Input |
|
P1687 |
31 |
A/T FI Signal B High Input |
|
P1705, P1706, P1738, P1739, P1753, P1758, |
70 |
Auto Transmission Related |
|
P1870, P1873, P1879, P1885, P1886, P1888, |
70 |
Auto Transmission Related |