Skip to main content

OBD 0/1/2 CEL & 'P' Codes

Honda/Acura OBD0/1/2 CEL & OBD2 ‘P’ code list

 

OBD2 “P” Code

OBD0/1/2 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,
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