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OBD2a/b Diagnostic "P" Scanner Codes
Author _ Katman | Created_ June 2005
OBD-2a/b
MIL
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, P0753, P0758, P0763, P0780
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, P1768, P1773, P1785, P1786, P1790, P1791, P1792, P1793, P1794
70
Auto Transmission Related
P1870, P1873, P1879, P1885, P1886, P1888, P1890, P1891
70
Auto Transmission Related


ADDITIONAL INFORMATION

The information in this article applies to:

  • U.S. OBD2 Vehicles Only
    (JDM OBD2 ecu's are incompatible with U.S. OBD2 scanner tools)