[Article duplicated from OG FFS TechNet / Dated June 2005 / Author: Katman]
OBD0-OBD1 MIL CODES
MIL = Malfunction Indicator Light / CEL = Check Engine Light
|
CEL/MIL
|
Diagnosis |
|
0
|
Engine Control Module (ECM/ECU) |
|
1
|
Heated 02 sensor |
|
3
|
Manifold Absolutre Pressure (MAP Sensor) |
|
4
|
Crank Shaft Position Sensor (CKP Sensor) |
|
6
|
Engine Coolant Temperature (ECT Sensor) |
|
7
|
Throttle Position (TP sensor) |
|
8
|
Top Dead Center Position (TDC sensor) |
|
9
|
#1 Cylinder Position (CYP sensor) |
|
10
|
Intake Air Temperature (IAT sensor) |
|
13
|
Barometric Sensor (BARO sensor) |
|
14
|
Idle Air Control Valve (IACV sensor) |
|
15
|
Ignition Output Signal |
|
16
|
Fuel Injector |
|
17
|
Vehicle Speed Sensor (VSS sensor) |
|
19
|
Lock Solenoid Valve (A/T trans) |
|
20
|
Electrical Load Sensor (ELD sensor) |
|
21
|
VTEC Solenoid (VTS) |
|
22
|
VTEC Pressure Switch (VTPS sensor) |
|
23
|
Knock Sensor (KS) |
|
30
|
A/T FI Signal A |
|
31
|
A/T FI Signal B |
|
41
|
Heated 02 Sensor |
|
43
|
Fuel Supply |
OBD2 A/B MIL/CEL & “P” Codes
| OBD-2 A/B “P” CODE |
MIL/CEL
|
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 |