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Diagnostic Trouble Code (DTC) Identification

NOTE: Not all codes apply to all models.
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (ACCORD 2.3L)

DTC (MIL/"D4" Code) (1) Temporary DTC (2) Description
P0107 (3) - MAP Sensor Circuit Low Voltage Input
P0108 (3) - MAP Sensor Circuit High Voltage Input
P0112 (10) - IAT Sensor Circuit Low Voltage Input
P0113 (10) - IAT Sensor Circuit High Voltage Input
P0116 (86) P0116 (86) ECT Sensor Circuit Range/Performance Problem
P0117 (6) - ECT Sensor Circuit Low Voltage Input
P0118 (6) - ECT Sensor Circuit High Voltage Input
P0122 (7) - Throttle Position Sensor Circuit Low Voltage Input
P0123 (7) - Throttle Position Sensor Circuit High Voltage Input
P0131 (1) (7) P0130 Primary HO2S-1 Low Voltage
P0132 (1) (7) P0130 Primary HO2S-1 High Voltage
P0133 (61) (7) P0133 Primary HO2S-1 Slow Response
P0135 (41) (7) - Primary HO2S-1 Heater Circuit Malfunction
P0137 (63) P0136 Secondary HO2S-2 Low Voltage
P0138 (63) P0136 Secondary HO2S-2 High Voltage
P0139 (63) P0136 Secondary HO2S-2 Slow Response
P0141 (65) - Secondary HO2S-2 Heater Circuit Malfunction
P0171 (45) P0170 System Too Lean
P0172 (45) P0170 System Too Rich
P0300 (71-74) (3) P1399 Random Misfire Detected
P0301 (71) P1399 Cylinder No. 1 Misfire Detected
P0302 (72) P1399 Cylinder No. 2 Misfire Detected
P0303 (73) P1399 Cylinder No. 3 Misfire Detected
P0304 (74) P1399 Cylinder No. 4 Misfire Detected
P0325 (23) - Knock Sensor (KS) Circuit Malfunction
P0335 (4) - CKP Sensor Circuit Low Voltage Input
P0336 (4) - CKP Sensor Circuit Range/Performance Problem
P0401 (80) P0401 EGR Insufficient Flow Detected
P0420 (67) - Catalyst System Efficiency Below Threshold
P0452 (91) P0450 Fuel Tank Pressure Sensor Circuit Low Voltage Input
P0453 (91) P0450 Fuel Tank Pressure Sensor Circuit High Voltage Input
P0500 (17) (4) - Vehicle Speed Sensor (VSS) Circuit Malfunction
P0505 (14) P0505 Idle Control System Malfunction
P0715 (70) (1)(5) - Automatic Transmission
P0720 (70) (1)(5) - Automatic Transmission
P0725 (70) (1)(5) - Automatic Transmission
P0730 (70) (1)(5) - Automatic Transmission
P0740 (70) (1)(5) - Automatic Transmission
P0753 (70) (1)(5) - Automatic Transmission
P0758 (70) (1)(5) - Automatic Transmission
P0763 (70) (1)(5) - Automatic Transmission
P1106 (13) P1106 BARO Sensor Circuit Range/Performance Problem
P1107 (13) - BARO Sensor Circuit Low Voltage Input
P1108 (13) - BARO Sensor Circuit High Voltage Input
P1121 (7) P1121 Throttle Position Lower Than Expected
P1122 (7) P1122 Throttle Position Higher Than Expected
P1128 (5) P1128 Manifold Absolute Pressure Lower Than Expected
P1129 (5) P1129 Manifold Absolute Pressure Higher Than Expected
P1149 (61) (6) P1149 HO2S-1 Circuit Range/Performance Problem
P1162 (48) (6) - HO2S-1 Circuit Malfunction
P1163 (61) (6) P1163 HO2S-1 Circuit Slow Response
P1164 (61) (6) P1164 HO2S-1 Circuit Range/Performance Problem
P1165 (61) (6) P1165 HO2S-1 Circuit Range/Performance Problem
P1166 (41) (6) - HO2S-1 Heater Circuit Electrical Malfunction
P1167 (41) (6) - HO2S-1 Heater Circuit Malfunction
P1253 (21) (7) P1257 VTEC System Malfunction
P1257 (22) (7) P1257 VTEC System Malfunction
P1258 (22) (7) P1257 VTEC System Malfunction
P1259 (22) (7) P1257 VTEC System Malfunction
P1297 (20) - Electrical Load Detector Circuit Low Voltage Input
P1298 (20) - Electrical Load Detector Circuit High Voltage Input
P1359 (8) - CKP/TDC Sensor Connector Poor Connection
P1361 (8) - TDC Sensor Circuit Intermittent Interruption
P1362 (8) - TDC Sensor Circuit No Signal
P1381 (9) - CYP Sensor Circuit Intermittent Interruption
P1382 (9) - CYP Sensor Circuit No Signal
P1456 (90) P1456 EVAP System Leak Detected (Fuel Tank System)
P1457 (90) P1457 EVAP System Leak Detected (Canister System)
P1491 (12) P1491 EGR Valve Insufficient Lift Detected
P1498 (12) - EGR Valve Lift Sensor Circuit High Voltage
P1519 (14) - Idle Air Control (IAC) Valve Circuit Failure
P1607 (-) - PCM Internal Failure "A"
P1705 (70) (1)(5) - Automatic Transmission
P1706 (70) (1)(5) - Automatic Transmission
P1738 (70) (1)(5) - Automatic Transmission
P1739 (70) (1)(5) - Automatic Transmission
P1753 (70) (1)(5) - Automatic Transmission
P1768 (70) (1)(5) - Automatic Transmission
P1773 (70) (1)(5) - Automatic Transmission
P1791 (70) (1)(5) - Automatic Transmission
(1) DTC retrieved from MIL (engine controls) or automatic transaxle position "D4" indicator (automatic transaxle controls) flashes when SCS service connector is connected. MIL and "D4" indicator may flash simultaneously. Diagnose MIL DTCs before "D4" DTCs.
(2) These DTCs require 2 trips or 2 driving cycles to set MIL.
(3) DTC P0300 and some of DTCs P0301 through P0306.
(4) With manual transaxle.
(5) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
(6) F23A4 engine used on Ultra Low Emissions Vehicle (ULEV).
(7) F23A1 and F23A5 engines.
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION - ACCORD 3.0L

DTC (MIL/"D4" Code) (1) Temporary DTC (2) Description
P0107 (3) - MAP Sensor Circuit Low Voltage Input
P0108 (3) - MAP Sensor Circuit High Voltage Input
P0112 (10) - IAT Sensor Circuit Low Voltage Input
P0113 (10) - IAT Sensor Circuit High Voltage Input
P0116 (86) P0116 ECT Sensor Circuit Range/Performance Problem
P0117 (6) - ECT Sensor Circuit Low Voltage Input
P0118 (6) - ECT Sensor Circuit High Voltage Input
P0122 (7) - Throttle Position Sensor Circuit Low Voltage Input
P0123 (7) - Throttle Position Sensor Circuit High Voltage Input
P0131 (1) P0130 Primary HO2S-1 Low Voltage
P0132 (1) P0130 Primary HO2S-1 High Voltage
P0133 (61) P0133 Primary HO2S-1 Slow Response
P0135 (41) - Primary HO2S-1 Heater Circuit Malfunction
P0137 (63) P0136 Secondary HO2S-2 Low Voltage
P0138 (63) P0136 Secondary HO2S-2 High Voltage
P0139 (63) P0136 Secondary HO2S-2 Slow Response
P0141 (65) - Secondary HO2S-2 Heater Circuit Malfunction
P0171 (45) P0170 System Too Lean
P0172 (45) P0170 System Too Rich
P0300 (71-76) (3) P1399 Random Misfire Detected
P0301 (71) P1399 Cylinder No. 1 Misfire Detected
P0302 (72) P1399 Cylinder No. 2 Misfire Detected
P0303 (73) P1399 Cylinder No. 3 Misfire Detected
P0304 (74) P1399 Cylinder No. 4 Misfire Detected
P0305 (75) P1399 Cylinder No. 5 Misfire Detected
P0306 (76) P1399 Cylinder No. 6 Misfire Detected
P0335 (4) - CKP Sensor Circuit Malfunction
P0336 (4) - CKP Sensor Circuit Range/Performance Problem
P0401 (80) P0401 EGR Insufficient Flow Detected
P0420 (67) - Catalyst System Efficiency Below Threshold
P0452 (91) P0450 Fuel Tank Pressure Sensor Circuit Low Voltage Input
P0453 (91) P0450 Fuel Tank Pressure Sensor Circuit High Voltage Input
P0505 (14) P0505 Idle Control System Malfunction
P0715 (70) (1)(4) - Automatic Transmission
P0720 (70) (1)(4) - Automatic Transmission
P0725 (70) (1)(4) - Automatic Transmission
P0730 (70) (1)(4) - Automatic Transmission
P0740 (70) (1)(4) - Automatic Transmission
P0753 (70) (1)(4) - Automatic Transmission
P0758 (70) (1)(4) - Automatic Transmission
P0763 (70) (1)(4) - Automatic Transmission
P1106 (13) P1106 BARO Sensor Circuit Range/Performance Problem
P1107 (13) - BARO Sensor Circuit Low Voltage Input
P1108 (13) - BARO Sensor Circuit High Voltage Input
P1121 (7) P1121 Throttle Position Lower Than Expected
P1122 (7) P1122 Throttle Position Higher Than Expected
P1128 (5) P1128 Manifold Absolute Pressure Lower Than Expected
P1129 (5) P1129 Manifold Absolute Pressure Higher Than Expected
P1259 (22) P1257 VTEC System Malfunction
P1297 (20) - Electrical Load Detector Circuit Low Voltage Input
P1298 (20) - Electrical Load Detector Circuit High Voltage Input
P1361 (8) - TDC-1 Sensor Circuit Intermittent Interruption
P1362 (8) - TDC-1 Sensor Circuit No Signal
P1366 (58) - TDC-2 Sensor Circuit Intermittent Interruption
P1367 (58) - TDC-2 Sensor Circuit No Signal
P1456 (90) P1456 (90) EVAP System Leak Detected (Fuel Tank System)
P1457 (90) P1457 (90) EVAP System Leak Detected (Canister System)
P1491 (12) P1491 (12) EGR Valve Insufficient Lift Detected
P1498 (12) - EGR Valve Lift Sensor Circuit High Voltage
P1519 (14) - Idle Air Control (IAC) Valve Circuit Failure
P1607 (-) - PCM Internal Failure "A"
P1705 (70) (1)(4) - Automatic Transmission
P1706 (70) (1)(4) - Automatic Transmission
P1738 (70) (1)(4) - Automatic Transmission
P1739 (70) (1)(4) - Automatic Transmission
P1753 (70) (1)(4) - Automatic Transmission
P1768 (70) (1)(4) - Automatic Transmission
P1773 (70) (1)(4) - Automatic Transmission
P1791 (70) (1)(4) - Automatic Transmission
(1) DTC retrieved from MIL (engine controls) or automatic transaxle position "D4" indicator (automatic transaxle controls) flashes when SCS service connector is connected. MIL and "D4" indicator may flash simultaneously. Diagnose MIL DTCs before "D4" DTCs.
(2) These DTCs require 2 trips or 2 driving cycles to set MIL.
(3) DTC P0300 and some of DTCs P0301 through P0306.
(4) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION - CIVIC

DTC (MIL/"D4" Code) (1) Description
P0107 (3) MAP Sensor Circuit Low Voltage Input
P0108 (3) MAP Sensor Circuit High Voltage Input
P0112 (10) IAT Sensor Circuit Low Voltage Input
P0113 (10) IAT Sensor Circuit High Voltage Input
P0116 (86) ECT Sensor Circuit Range/Performance Problem
P0117 (6) ECT Sensor Circuit Low Voltage Input
P0118 (6) ECT Sensor Circuit High Voltage Input
P0122 (7) Throttle Position Sensor Circuit Low Voltage Input
P0123 (7) Throttle Position Sensor Circuit High Voltage Input
P0131 (1) (2) Primary HO2S-1 Low Voltage
P0132 (1) (2) Primary HO2S-1 High Voltage
P0133 (61) (2) Primary HO2S-1 Slow Response
P0135 (41) (2) Primary HO2S-1 Heater Circuit Malfunction
P0137 (63) Secondary HO2S-2 Low Voltage
P0138 (63) Secondary HO2S-2 High Voltage
P0139 (63) Secondary HO2S-2 Slow Response
P0141 (65) Secondary HO2S-2 Heater Circuit Malfunction
P0171 (45) System Too Lean
P0172 (45) System Too Rich
P0300 (71-74) (3) Random Misfire Detected
P0301 (71) Cylinder No. 1 Misfire Detected
P0302 (72) Cylinder No. 2 Misfire Detected
P0303 (73) Cylinder No. 3 Misfire Detected
P0304 (74) Cylinder No. 4 Misfire Detected
P0325 (23) (4) Knock Sensor (KS) Circuit Malfunction
P0335 (4) CKP Sensor Circuit Malfunction
P0336 (4) CKP Sensor Circuit Range/Performance Problem
P0401 (80) (5) EGR Insufficient Flow Detected
P0420 (67) Catalyst System Efficiency Below Threshold
P0451 (91) Fuel Tank Pressure Sensor Circuit Range/Performance Problem
P0452 (91) Fuel Tank Pressure Sensor Circuit Low Voltage
P0453 (91) Fuel Tank Pressure Sensor Circuit High Voltage
P0500 (17) (6) Vehicle Speed Sensor (VSS) Circuit Malfunction
P0501 (17) (7) VSS Circuit Range/Performance Problem
P0505 (14) Idle Control System Malfunction
P0700 (70) (1)(8)(9)(10) Automatic Transmission
P0715 (70) (1)(7)(8) Automatic Transmission
P0720 (70) (1)(7)(8) Automatic Transmission
P0725 (70) (1)(8)(11) Automatic Transmission
P0730 (70) (1)(7)(8) Automatic Transmission
P0740 (70) (1)(7)(8) Automatic Transmission
P0753 (70) (1)(7)(8) Automatic Transmission
P0758 (70) (1)(7)(8) Automatic Transmission
P1106 (13) BARO Sensor Circuit Range/Performance Problem
P1107 (13) BARO Sensor Circuit Low Voltage Input
P1108 (13) BARO Sensor Circuit High Voltage Input
P1121 (7) Throttle Position Lower Than Expected
P1122 (7) Throttle Position Higher Than Expected
P1128 (5) Manifold Absolute Pressure Lower Than Expected
P1129 (5) Manifold Absolute Pressure Higher Than Expected
P1162 (48) (12) Primary HO2S-1 Circuit Malfunction
P1163 (61) (12) Primary HO2S-1 Circuit Slow Response
P1164 (61) (12) Primary HO2S-1 Circuit Range/Performance Problem
P1165 (61) (12) Primary HO2S-1 Circuit Range/Performance Problem
P1166 (41) (12) Primary HO2S-1 Heater Circuit Electrical Malfunction
P1167 (41) (12) Primary HO2S-1 Heater System Malfunction
P1168 (48) (12) Primary HO2S-1 LABEL Low Voltage Input
P1169 (48) (12) Primary HO2S-1 LABEL High Voltage Input
P1259 (22) (13) VTEC System Malfunction
P1297 (20) (14) Electrical Load Detector Circuit Low Voltage Input
P1298 (20) (14) Electrical Load Detector Circuit High Voltage Input
P1336 (54) CKF Sensor Circuit Intermittent Interruption
P1337 (54) CKF Sensor Circuit No Signal
P1359 (8) CKP/TDC/CYP Sensor Connector Poor Connection
P1361 (8) TDC Sensor Circuit Intermittent Interruption
P1362 (8) TDC Sensor Circuit No Signal
P1381 (9) CYP Sensor Circuit Intermittent Interruption
P1382 (9) CYP Sensor Circuit No Signal
P1456 (90) EVAP System Leak Detected (Fuel Tank System)
P1457 (90) EVAP System Leak Detected (Canister System)
P1491 (12) (12) EGR Valve Insufficient Lift Detected
P1498 (12)(12) EGR Valve Lift Sensor Circuit High Voltage
P1508 (14) (15) Idle Air Control Valve Circuit Failure
P1509 (14) (16) Idle Air Control Valve Circuit Failure
P1607 (-) PCM Internal Failure "A"
P1705 (70) (1)(8) Automatic Transmission
P1706 (70) (1)(8) Automatic Transmission
P1753 (70) (1)(7)(8) Automatic Transmission
P1758 (70) (1)(7)(8) Automatic Transmission
P1768 (70) (1)(7)(8) Automatic Transmission
P1785 (70) (1)(8)(11) Automatic Transmission
P1790 (70) (1)(8)(11) Automatic Transmission
P1791 (70) (1)(8)(11) Automatic Transmission
P1793 (70) (1)(8)(11) Automatic Transmission
P1870 (70) (1)(8)(11) Automatic Transmission
P1873 (70) (1)(8)(11) Automatic Transmission
P1879 (70) (1)(8)(11) Automatic Transmission
P1885 (70) (1)(8)(11) Automatic Transmission
P1886 (70) (1)(8)(11) Automatic Transmission
P1888 (70) (1)(8)(11) Automatic Transmission
P1890 (70) (1)(8)(11) Automatic Transmission
P1891 (70) (1)(8)(11) Automatic Transmission
(1) DTC retrieved from MIL (engine controls) or automatic transaxle position "D4" indicator (automatic transaxle controls) flashes when SCS service connector is connected. MIL and "D4" indicator may flash simultaneously. Diagnose MIL DTCs before "D4" DTCs.
(2) Except D16Y5 engine manual transaxle.
(3) DTC P0300 and some of DTCs P0301 through P0304.
(4) B16A2 engine, D16Y5 engine with CVT and D16Y8 engine.
(5) D16Y5 engine.
(6) Except D16Y7 and D16Y8 engines with automatic transaxle.
(7) D16Y7 and D16Y8 engines with automatic transaxle.
(8) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
(9) DTC P0700 and some of DTCs P0715, P0720, P0730, P0740, P0753 and P0758.
(10) DTC P0700 and P0725.
(11) D16Y5 engine with CVT.
(12) D16Y5 engine with manual transaxle.
(13) D16Y5 and D16Y8 engines.
(14) USA models.
(15) Except D16Y7 engine with automatic transaxle.
(16) D16Y7 engine with automatic transaxle.
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION - CR-V

DTC (MIL/"D4" Code) (1) Description
P0107 (3) MAP Sensor Circuit Low Voltage Input
P0108 (3) MAP Sensor Circuit High Voltage Input
P0112 (10) IAT Sensor Circuit Low Voltage Input
P0113 (10) IAT Sensor Circuit High Voltage Input
P0116 (86) ECT Sensor Circuit Range/Performance Problem
P0117 (6) ECT Sensor Circuit Low Voltage Input
P0118 (6) ECT Sensor Circuit High Voltage Input
P0122 (7) Throttle Position Sensor Circuit Low Voltage Input
P0123 (7) Throttle Position Sensor Circuit High Voltage Input
P0131 (1) Primary HO2S-1 Low Voltage
P0132 (1) Primary HO2S-1 High Voltage
P0133 (61) Primary HO2S-1 Slow Response
P0135 (41) Primary HO2S-1 Heater Circuit Malfunction
P0137 (63) Secondary HO2S-2 Low Voltage
P0138 (63) Secondary HO2S-2 High Voltage
P0139 (63) Secondary HO2S-2 Slow Response
P0141 (65) Secondary HO2S-2 Heater Circuit Malfunction
P0171 (45) System Too Lean
P0172 (45) System Too Rich
P0300 (71-74) (2) Random Misfire Detected
P0301 (71) Cylinder No. 1 Misfire Detected
P0302 (72) Cylinder No. 2 Misfire Detected
P0303 (73) Cylinder No. 3 Misfire Detected
P0304 (74) Cylinder No. 4 Misfire Detected
P0325 (23) Knock Sensor Circuit Malfunction
P0335 (4) CKP Sensor Circuit Low Voltage Input
P0336 (4) CKP Sensor Circuit Range/Performance Problem
P0420 (67) Catalyst System Efficiency Below Threshold
P0451 (91) Fuel Tank Pressure Sensor Range/Performance Problem
P0452 (91) Fuel Tank Pressure Sensor Circuit Low Voltage Input
P0453 (91) Fuel Tank Pressure Sensor Circuit High Voltage Input
P0500 (17) (3) Vehicle Speed Sensor (VSS) Circuit Malfunction
P0501 (17) (4) Vehicle Speed Sensor Circuit Malfunction
P0505 (14) Idle Control System Malfunction
P0700 (70) (1)(5) Automatic Transmission
P0715 (70) (1)(5) Automatic Transmission
P0720 (70) (1)(5) Automatic Transmission
P0730 (70) (1)(5) Automatic Transmission
P0740 (70) (1)(5) Automatic Transmission
P0753 (70) (1)(5) Automatic Transmission
P0758 (70) (1)(5) Automatic Transmission
P1106 (13) BARO Sensor Circuit Range/Performance Problem
P1107 (13) BARO Sensor Circuit Low Voltage Input
P1108 (13) BARO Sensor Circuit High Voltage Input
P1121 (7) Throttle Position Lower Than Expected
P1122 (7) Throttle Position Higher Than Expected
P1128 (5) Manifold Absolute Pressure Lower Than Expected
P1129 (5) Manifold Absolute Pressure Higher Than Expected
P1297 (20) Electrical Load Detector Circuit Low Voltage Input
P1298 (20) Electrical Load Detector Circuit High Voltage Input
P1336 (54) CKF Sensor Circuit Intermittent Interruption
P1337 (54) CKF Sensor Circuit No Signal
P1359 (8) CKP/TDC/CYP Sensor Connector Poor Connection
P1361 (8) TDC Sensor Circuit Intermittent Interruption
P1362 (8) TDC Sensor Circuit No Signal
P1381 (9) CYP Sensor Circuit Intermittent Interruption
P1382 (9) CYP Sensor Circuit No Signal
P1456 (90) EVAP System Leak Detected (Fuel Tank System)
P1457 (90) EVAP System Leak Detected (Canister System)
P1508 (14) Idle Air Control Valve Circuit Failure
P1607 (-) PCM Internal Failure
P1705 (70) (1)(5) Automatic Transmission
P1706 (70) (1)(5) Automatic Transmission
P1753 (70) (1)(5) Automatic Transmission
P1758 (70) (1)(5) Automatic Transmission
P1768 (70) (1)(5) Automatic Transmission
(1) DTC retrieved from MIL (engine controls) or automatic transaxle position "D4" indicator (automatic transaxle controls) flashes when SCS service connector is connected. MIL and "D4" indicator may flash simultaneously. Diagnose MIL DTCs before "D4" DTCs.
(2) DTC P0300 and some of DTCs P0301 through P0304.
(3) With manual transaxle.
(4) With automatic transaxle.
(5) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION - ODYSSEY

DTC (MIL/"D4" Code) (1) Temporary DTC (2) Description
P0107 (3) - MAP Sensor Circuit Low Voltage Input
P0108 (3) - MAP Sensor Circuit High Voltage Input
P0112 (10) - IAT Sensor Circuit Low Voltage Input
P0113 (10) - IAT Sensor Circuit High Voltage Input
P0116 (86) P0116 ECT Sensor Circuit Range/Performance Problem
P0117 (6) - ECT Sensor Circuit Low Voltage Input
P0118 (6) - ECT Sensor Circuit High Voltage Input
P0122 (7) - Throttle Position Sensor Circuit Low Voltage Input
P0123 (7) - Throttle Position Sensor Circuit High Voltage Input
P0131 (1) - Primary HO2S-1 Low Voltage
P0132 (1) - Primary HO2S-1 High Voltage
P0133 (61) P0133 Primary HO2S-1 Slow Response
P0135 (41) - Primary HO2S-1 Heater Circuit Malfunction
P0137 (63) P0136 Secondary HO2S-2 Low Voltage
P0138 (63) P0136 Secondary HO2S-2 High Voltage
P0139 (63) P0136 Secondary HO2S-2 Slow Response
P0141 (65) - Secondary HO2S-2 Heater Circuit Malfunction
P0171 (45) P0170 System Too Lean
P0172 (45) P0170 System Too Rich
P0300 (71-74) (3) P1399 Random Misfire Detected
P0301 (71) P1399 Cylinder No. 1 Misfire Detected
P0302 (72) P1399 Cylinder No. 2 Misfire Detected
P0303 (73) P1399 Cylinder No. 3 Misfire Detected
P0304 (74) P1399 Cylinder No. 4 Misfire Detected
P0305 (75) P1399 Cylinder No. 5 Misfire Detected
P0306 (76) P1399 Cylinder No. 6 Misfire Detected
P0325 (23) - Knock Sensor (KS) Circuit Malfunction
P0335 (4) - CKP Sensor Circuit Malfunction
P0336 (4) - CKP Sensor Circuit Range/Performance Problem
P0401 (80) P0401 EGR Insufficient Flow Detected
P0420 (67) - Catalyst System Efficiency Below Threshold
P0451 (91) P0451 Fuel Tank Pressure Sensor Circuit Range/Performance Problem
P0452 (91) P0450 Fuel Tank Pressure Sensor Circuit Low Voltage Input
P0453 (91) P0450 Fuel Tank Pressure Sensor Circuit High Voltage Input
P0505 (14) P0505 Idle Control System Malfunction
P0700 (70) (1)(4) - Automatic Transmission
P0715 (70) (1)(4) - Automatic Transmission
P0720 (70) (1)(4) - Automatic Transmission
P0730 (70) (1)(4) - Automatic Transmission
P0740 (70) (1)(4) - Automatic Transmission
P0753 (70) (1)(4) - Automatic Transmission
P0758 (70) (1)(4) - Automatic Transmission
P0763 (70) (1)(4) - Automatic Transmission
P1106 (13) P1106 BARO Sensor Circuit Range/Performance Problem
P1107 (13) - BARO Sensor Circuit Low Voltage Input
P1108 (13) - BARO Sensor Circuit High Voltage Input
P1121 (7) P1121 Throttle Position Lower Than Expected
P1122 (7) P1122 Throttle Position Higher Than Expected
P1128 (5) P1128 Manifold Absolute Pressure Lower Than Expected
P1129 (5) P1129 Manifold Absolute Pressure Higher Than Expected
P1259 (22) - VTEC System Malfunction
P1297 (20) - Electrical Load Detector Circuit Low Voltage Input
P1298 (20) - Electrical Load Detector Circuit High Voltage Input
P1361 (8) - TDC Sensor Circuit Intermittent Interruption
P1362 (8) - TDC Sensor Circuit No-1 Signal
P1366 (58) - TDC Sensor Circuit No-2 Intermittent Interruption
P1367 (58) - TDC Sensor Circuit No-2 No Signal
P1456 (90) P1456 EVAP System Leak Detected (Fuel Tank System)
P1457 (90) P1457 EVAP System Leak Detected (Canister System)
P1491 (12) P1491 EGR Valve Insufficient Lift Detected
P1498 (12) - EGR Valve Lift Sensor Circuit High Voltage
P1519 (14) - Idle Air Control (IAC) Valve Circuit Failure
P1607 (-) - PCM Internal Failure "A"
P1676 (35) - FPTDR Signal Circuit Failure
P1678 (35) - FPTDR Signal Circuit Failure
P1705 (70) (1)(4) - Automatic Transmission
P1706 (70) (1)(4) P1706 Automatic Transmission
P1709 (70) (1)(4) - Automatic Transmission
P1738 (70) (1)(4) - Automatic Transmission
P1739 (70) (1)(4) - Automatic Transmission
P1753 (70) (1)(4) - Automatic Transmission
P1768 (70) (1)(4) - Automatic Transmission
P1773 (70) (1)(4) - Automatic Transmission
(1) DTC retrieved from MIL (engine controls) or automatic transaxle position "D4" indicator (automatic transaxle controls) flashes when SCS service connector is connected. MIL and "D4" indicator may flash simultaneously. Diagnose MIL DTCs before "D4" DTCs.
(2) These DTCs require 2 trips or 2 driving cycles to set MIL.
(3) DTC P0300 and some of DTCs P0301 through P0304.
(4) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION - PRELUDE

DTC (MIL/"D4" Code) (1) Description
P0107 (3) MAP Sensor Circuit Low Voltage Input
P0108 (3) MAP Sensor Circuit High Voltage Input
P0112 (10) IAT Sensor Circuit Low Voltage Input
P0113 (10) IAT Sensor Circuit High Voltage Input
P0116 (86) ECT Sensor Circuit Range/Performance Problem
P0117 (6) ECT Sensor Circuit Low Voltage Input
P0118 (6) ECT Sensor Circuit High Voltage Input
P0122 (7) Throttle Position Sensor Circuit Low Voltage Input
P0123 (7) Throttle Position Sensor Circuit High Voltage Input
P0131 (1) Primary HO2S-1 Low Voltage Input
P0132 (1) Primary HO2S-1 High Voltage Input
P0133 (61) Primary HO2S-1 Slow Response
P0135 (41) Primary HO2S-1 Heater Circuit Malfunction
P0137 (63) Secondary HO2S-2 Low Voltage Input
P0138 (63) Secondary HO2S-2 High Voltage Input
P0139 (63) Secondary HO2S-2 Slow Response
P0141 (65) Secondary HO2S-2 Heater Circuit Malfunction
P0171 (45) System Too Lean
P0172 (45) System Too Rich
P0300 (71-74) (2) Random Misfire Detected
P0301 (71) Cylinder No. 1 Misfire Detected
P0302 (72) Cylinder No. 2 Misfire Detected
P0303 (73) Cylinder No. 3 Misfire Detected
P0304 (74) Cylinder No. 4 Misfire Detected
P0325 (23) Knock Sensor (KS) Circuit Malfunction
P0335 (4) CKP Sensor Circuit Malfunction
P0336 (4) CKP Sensor Circuit Range/Performance Problem
P0401 (80) EGR Insufficient Flow Detected
P0420 (67) Catalyst System Efficiency Below Threshold
P0451 (91) Fuel Tank Pressure Sensor Circuit Range/Performance Problem
P0452 (91) (3) Fuel Tank Pressure Sensor Circuit Low Voltage Input
P0453 (91) (3) Fuel Tank Pressure Sensor Circuit High Voltage Input
P0500 (17) Vehicle Speed Sensor (VSS) Circuit Malfunction
P0505 (14) Idle Control System Malfunction
P0700 (70) (1)(4) Automatic Transmission
P0715 (70) (1)(4) Automatic Transmission
P0720 (70) (1)(4) Automatic Transmission
P0725 (70) (1)(4) Automatic Transmission
P0730 (70) (1)(4) Automatic Transmission
P0740 (70) (1)(4) Automatic Transmission
P0753 (70) (1)(4) Automatic Transmission
P0758 (70) (1)(4) Automatic Transmission
P0763 (70) (1)(4) Automatic Transmission
P1106 (13) BARO Sensor Circuit Range/Performance Problem
P1107 (13) BARO Sensor Circuit Low Voltage Input
P1108 (13) BARO Sensor Circuit High Voltage Input
P1121 (7) Throttle Position Lower Than Expected
P1122 (7) Throttle Position Higher Than Expected
P1128 (5) Manifold Absolute Pressure Lower Than Expected
P1129 (5) Manifold Absolute Pressure Higher Than Expected
P1259 (22) VTEC System Malfunction
P1297 (20) Electrical Load Detector Circuit Low Voltage Input
P1298 (20) Electrical Load Detector Circuit High Voltage Input
P1359 (8) CKP/TDC Sensor Connector Poor Connection
P1361 (8) TDC Sensor Circuit Intermittent Interruption
P1362 (8) TDC Sensor Circuit No Signal
P1381 (9) CYP Sensor Circuit Intermittent Interruption
P1382 (9) CYP Sensor Circuit No Signal
P1456 (90) (3) EVAP System Leak Detected (Fuel Tank System)
P1457 (90) (3) EVAP System Leak Detected (Canister System)
P1491 (12) EGR Valve Insufficient Lift Detected
P1498 (12) EGR Valve Lift Sensor Circuit High Voltage
P1508 (14) Idle Air Control (IAC) Valve Circuit Failure
P1607 (-) PCM Internal Failure "A"
P1655 (30) SEAF/SEFA Signal Circuit Failure
P1705 (70) (1)(4) Automatic Transmission
P1706 (70) (1)(4) Automatic Transmission
P1753 (70) (1)(4) Automatic Transmission
P1768 (70) (1)(4) Automatic Transmission
P1773 (70) (1)(4) Automatic Transmission
P1790 (70) (1)(4) Automatic Transmission
P1791 (70) (1)(4) Automatic Transmission
(1) DTC retrieved from MIL (engine controls) or automatic transaxle position "D4" indicator (automatic transaxle controls) flashes when SCS service connector is connected. MIL and "D4" indicator may flash simultaneously. Diagnose MIL DTCs before "D4" DTCs.
(2) DTC P0300 and some of DTCs P0301 through P0304.
(3) California models only.
(4) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
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