NOTE:
Retrieval of some diagnostic codes may require the use of special OEM tester or flash method using instrument cluster indicator. For procedures/testing of codes not shown below, refer to appropriate system article.
AUTOMATIC TRANSMISSION DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
DTC
Description
DTC P0705
Short in Transmission Range Switch Circuit (Multiple Shift-position Input)
DTC P0706
Open in Transmission Range Switch Circuit
DTC P0711
Problem in ATF Temperature Sensor Circuit
DTC P0712
Short in ATF Temperature Sensor Circuit
DTC P0713
Open in ATF Temperature Sensor Circuit
DTC P0716
Problem in Input Shaft (Mainshaft) Speed Sensor Circuit; DTC P0717: Problem in Input Shaft (Mainshaft) Speed Sensor Circuit (No Signal Input)
DTC P0718
Input Shaft (Mainshaft) Speed Sensor Intermittent Failure
DTC P0721
Problem in Output Shaft (Countershaft) Speed Sensor Circuit; DTC P0722: Problem in Output Shaft (Countershaft) Speed Sensor Circuit (No Signal Input)
DTC P0723
Output Shaft (Countershaft) Speed Sensor Intermittent Failure
DTC P0731
Problem in 1st Clutch and 1st Clutch Hydraulic Circuit (1st Gear Incorrect Ratio)
DTC P0732
Problem in 2nd Clutch and 2nd Clutch Hydraulic Circuit (2nd Gear Incorrect Ratio)
DTC P0733
Problem in 3rd Clutch and 3rd Clutch Hydraulic Circuit (3rd Gear Incorrect Ratio)
DTC P0734
Problem in 4th Clutch and 4th Clutch Hydraulic Circuit (4th Gear Incorrect Ratio)
DTC P0735
Problem in 5th Clutch and 5th Clutch Hydraulic Circuit (5th Gear Incorrect Ratio)
DTC P0741
Torque Converter Clutch Hydraulic Circuit Stuck OFF
DTC P0747
A/T Clutch Pressure Control Solenoid Valve A Stuck ON
DTC P0752
Shift Solenoid Valve A Stuck ON
DTC P0756
Shift Solenoid Valve B Stuck OFF
DTC P0757
Shift Solenoid Valve B Stuck ON
DTC P0761
Shift Solenoid Valve C Stuck OFF
DTC P0771
Shift Solenoid Valve E Stuck OFF
DTC P0776
A/T Clutch Pressure Control Solenoid Valve B Stuck OFF
DTC P0777
A/T Clutch Pressure Control Solenoid Valve B Stuck ON
DTC P0780
Shift Control System
DTC P0796
A/T Clutch Pressure Control Solenoid Valve C Stuck OFF
DTC P0797
A/T Clutch Pressure Control Solenoid Valve C Stuck ON
DTC P0812
Open in Transmission Range Switch ATP RVS Switch Circuit ('04-06 Models); DTC P1717: Open in Transmission Range Switch ATP RVS Switch Circuit ('07-08 Models)
DTC P0815
Short in Transmission Gear Selection Switch Upshift Switch Circuit, or Transmission Gear Selection Switch Upshift Switch Stuck ON
DTC P0816
Short in Transmission Gear Selection Switch Downshift Switch Circuit, or Transmission Gear Selection Switch Downshift Switch Stuck ON
DTC P0842
Short in 2nd Clutch Transmission Fluid Pressure Switch Circuit, or 2nd Clutch Transmission Fluid Pressure Switch Stuck ON
DTC P0843
Open in 2nd Clutch Transmission Fluid Pressure Switch Circuit, or 2nd Clutch Transmission Fluid Pressure Switch Stuck OFF
DTC P0847
Short in 3rd Clutch Transmission Fluid Pressure Switch Circuit, or 3rd Clutch Transmission Fluid Pressure Switch Stuck ON
DTC P0848
Open in 3rd Clutch Transmission Fluid Pressure Switch Circuit, or 3rd Clutch Transmission Fluid Pressure Switch Stuck OFF
DTC P0957
Short in Transmission Gear Selection Switch Circuit, or Transmission Gear Selection Switch Stuck ON
DTC P0958
Open in Transmission Gear Selection Switch Circuit, or Transmission Gear Selection Switch Stuck OFF
DTC P0962
Problem in A/T Clutch Pressure Control Solenoid Valve A Circuit
DTC P0963
Problem in A/T Clutch Pressure Control Solenoid Valve A
DTC P0966
Problem in A/T Clutch Pressure Control Solenoid Valve B Circuit
DTC P0967
Problem in A/T Clutch Pressure Control Solenoid Valve B
DTC P0970
Problem in A/T Clutch Pressure Control Solenoid Valve C Circuit
DTC P0971
Problem in A/T Clutch Pressure Control Solenoid Valve C
DTC P0973
Short in Shift Solenoid Valve A Circuit
DTC P0974
Open in Shift Solenoid Valve A Circuit
DTC P0976
Short in Shift Solenoid Valve B Circuit
DTC P0977
Open in Shift Solenoid Valve B Circuit
DTC P0979
Short in Shift Solenoid Valve C Circuit
DTC P0980
Open in Shift Solenoid Valve C Circuit
DTC P0982
Short in Shift Solenoid Valve D Circuit
DTC P0983
Open in Shift Solenoid Valve D Circuit
DTC P0985
Short in Shift Solenoid Valve E Circuit
DTC P0986
Open in Shift Solenoid Valve E Circuit
DTC P1730
Problem in Shift Control System:
DTC P1731
Problem in Shift Control System:
DTC P1732
Problem in Shift Control System:
DTC P1733
Problem in Shift Control System:
DTC P1734
Problem in Shift Control System:
CATALYTIC CONVERTER SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
DTC (MIL indication )
Description
P0420
(67)
Catalyst System Efficiency Below Threshold
P0420
(67)
Catalyst System Efficiency Below Threshold
ELECTRONIC THROTTLE CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
DTC (MIL indication )
Description
P0122
(7)
Throttle Position (TP) Sensor A Circuit Low Voltage
P0123
(7)
Throttle Position (TP) Sensor A Circuit High Voltage
P0222
(7)
Throttle Position (TP) Sensor B Circuit Low Voltage
P0223
(7)
Throttle Position (TP) Sensor B Circuit High Voltage
P1683
(40)
Throttle Valve Default Position Spring Performance Problem
P1684
(40)
Throttle Valve Return Spring Performance Problem
P2101
(40)
Throttle Actuator System Malfunction
P2108
(40)
Throttle Actuator Control Module Problem
P2118
(40)
Throttle Actuator Current Range/Performance Problem
P2122
(37)
Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP) Sensor D) Circuit Low Voltage
P2123
(37)
Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP) Sensor D) Circuit High Voltage
P2127
(37)
Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP) Sensor E) Circuit Low Voltage
P2128
(37)
Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP) Sensor E) Circuit High Voltage
P2135
(7)
Throttle Position (TP) Sensor A/B Incorrect Voltage Correlation
P2138
(37)
Accelerator Pedal Position (APP) Sensor A/B (Throttle Position (TP) Sensor D/E) Incorrect Voltage Correlation
P2176
(40)
Throttle Actuator Control System Idle Position Not Learned
P2552
(40)
Throttle Actuator Control Module Relay Malfunction
U0107
(30)
Lost Communication With Throttle Actuator Control Module
EVAP SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
DTC (MIL indication )
Description
P0442
(90)
Evaporative Emission (EVAP) System Small Leak Detected
P0443
(92)
Evaporative Emission (EVAP) Canister Purge Valve Circuit Malfunction
P0451
(91)
Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem
P0452
(91)
Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage
P0453
(91)
Fuel Tank Pressure (FTP) Sensor Circuit High Voltage
P0455
(90)
Evaporative Emission (EVAP) System Large Leak Detected
P0456
(90)
Evaporative Emission (EVAP) System Very Small Leak Detected
P0457
(90)
Evaporative Emission (EVAP) System Leak Detected/Fuel Fill Cap Loose or Missing
P0496
(92)
Evaporative Emission (EVAP) System High Purge Flow Detected
P0497
(90)
Evaporative Emission (EVAP) System Low Purge Flow Detected
P0498
(117)
Evaporative Emission (EVAP) Canister Vent Shut Valve Circuit Low Voltage
P0499
(117)
Evaporative Emission (EVAP) Canister Vent Shut Valve Circuit High Voltage
P1454
(91)
Fuel Tank Pressure (FTP) Sensor Range/Performance Problem
P2422
(117)
Evaporative Emission (EVAP) Canister Vent Shut Valve Stuck Closed Malfunction
FUEL SUPPLY SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
DTC (MIL indication )
Description
P0461
(121)
Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Range/ Performance Problem
P0462
(121)
Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Low Voltage
P0463
(121)
Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit High Voltage
IDLE CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
DTC (MIL indication )
Description
P0506
(14)
Idle Control System RPM Lower Than Expected
P0507
(14)
Idle Control System RPM Higher Than Expected
PCV SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
DTC (MIL indication )
Description
P2279
(109)
Intake Air System Leak Detected
PGM-FI SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
DTC (MIL indication )
Description
P0107
(3)
Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
P0108
(3)
Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
P0111
(10)
Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem
P0112
(10)
Intake Air Temperature (IAT) Sensor Circuit Low Voltage
P0113
(10)
Intake Air Temperature (IAT) Sensor Circuit High Voltage
P0116
(86)
Engine Coolant Temperature (ECT) Sensor Circuit Range/ Performance Problem
P0116
(86)
Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/ Performance Problem
P0117
(6)
Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
P0117
(6)
Engine Coolant Temperature (ECT) Sensor 1 Circuit Low Voltage
P0118
(6)
Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
P0118
(6)
Engine Coolant Temperature (ECT) Sensor 1 Circuit High Voltage
P0125
(86)
Engine Coolant Temperature (ECT) Sensor Malfunction/Slow Response
P0125
(86)
Engine Coolant Temperature (ECT) Sensor 1 Malfunction/Slow Response
P0128
(87)
Cooling System Malfunction
P0128
(87)
Cooling System Malfunction
P0133
(61)
Air Fuel Ratio (A/F) Sensor (Sensor 1) Malfunction/Slow Response
P0133
(61)
Air Fuel Ratio (A/F) Sensor (Sensor 1) Malfunction/Slow Response
P0134
(41)
Air Fuel Ratio (A/F) Sensor (Sensor 1) Heater System Malfunction
P0135
(41)
Air Fuel Ratio (A/F) Sensor (Sensor 1) Heater Circuit Malfunction
P0137
(63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Low Voltage
P0137
(63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Low Voltage
P0138
(63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit High Voltage
P0138
(63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit High Voltage
P0139
(63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Slow Response
P0139
(63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Slow Response
P0141
(65)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Heater Circuit Malfunction
P0171
(45)
Fuel System Too Lean
P0172
(45)
Fuel System Too Rich
P0300
(75) any combination of the following P0301 (71) P0302 (72) P0303 (73) P0304 (74)
Random Misfire Detected
P0301
(71)
No. 1 Cylinder Misfire Detected
P0302
(72)
No. 2 Cylinder Misfire Detected
P0303
(73)
No. 3 Cylinder Misfire Detected
P0304
(74)
No. 4 Cylinder Misfire Detected
P0325
(23)
Knock Sensor Circuit Malfunction
P0335
(4)
Crankshaft Position (CKP) Sensor No Signal
P0339
(4)
Crankshaft Position (CKP) Sensor Circuit Intermittent Interruption
P0365
(8)
Camshaft Position (CMP) Sensor B No Signal
P0369
(8)
Camshaft Position (CMP) Sensor B Circuit Intermittent Interruption
P0562
(34)
Charging System Low Voltage
P0563
(34)
Engine Control Module (ECM)/Powertrain Control Module (PCM) Power Source Circuit Unexpected Voltage
P0602
(196)
Engine Control Module (ECM)/Powertrain Control Module (PCM) Programming Error
P0603
(131)
Engine Control Module (ECM)/Powertrain Control Module (PCM) Internal Control Module Keep Alive Memory (KAM) Error
P0606
(0)
Engine Control Module (ECM)/Powertrain Control Module (PCM) Processor Malfunction
P062F
(131)
Engine Control Module (ECM)/Powertrain Control Module (PCM) Internal Control Module Keep Alive Memory (KAM) Error
P0630
(139)
VIN Not Programmed or Mismatch
P0685
(135)
Engine Control Module (ECM)/Powertrain Control Module (PCM) Power Control Circuit/Internal Circuit Malfunction
P0700
(70) ,
Automatic Transaxle Control System Malfunction
P0700
(70)
Automatic Transaxle Control System Malfunction
P0720
(122)
Output shaft (Countershaft) Speed Sensor Circuit Malfunction
P1109
(13)
Barometric Pressure (BARO) Sensor Circuit Out of Range High
P1116
(86)
Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/ Performance Problem
P1128
(5)
Manifold Absolute Pressure (MAP) Sensor Signal Lower Than Expected
P1129
(5)
Manifold Absolute Pressure (MAP) Sensor Signal Higher Than Expected
P1157
(48)
Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS Circuit High Voltage
P1172
(61)
Air Fuel Ratio (A/F) Sensor (Sensor 1) Circuit Out of Range High
P1297
(20)
Electrical Load Detector (ELD) Circuit Low Voltage
P1298
(20)
Electrical Load Detector (ELD) Circuit High Voltage
P1549
(34)
Charging System High Voltage
P16BB
(116)
Alternator B Terminal Circuit Low Voltage
P16BC
(116)
Alternator FR Terminal Circuit/IGP Circuit Low Voltage
P2183
(192)
Engine Coolant Temperature (ECT) Sensor 2 Circuit Range/ Performance Problem
P2184
(192)
Engine Coolant Temperature (ECT) Sensor 2 Circuit Low Voltage
P2185
(192)
Engine Coolant Temperature (ECT) Sensor 2 Circuit High Voltage
P2195
(48)
Air Fuel Ratio (A/F) Sensor (Sensor 1) Signal Stuck Lean
P2227
(13)
Barometric Pressure (BARO) Sensor Circuit Range/Performance Problem
P2228
(13)
Barometric Pressure (BARO) Sensor Circuit Low Voltage
P2229
(13)
Barometric Pressure (BARO) Sensor Circuit High Voltage
P2238
(48)
Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS+ Circuit Low Voltage
P2252
(48)
Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS - Circuit Low Voltage
P2270
(63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Signal Stuck Lean
P2271
(63)
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Signal Stuck Rich
P2610
(132)
Engine Control Module (ECM)/Powertrain Control Module (PCM) Ignition Off Internal Timer Malfunction
P2A00
(61)
Air Fuel Ratio (A/F) Sensor (Sensor 1) Circuit Range/Performance Problem
U0073
(126)
F-CAN Malfunction (BUS-OFF)
U0073
(126)
F-CAN Malfunction (BUS-OFF)
U0122
(126)
F-CAN Malfunction (Engine Control Module (ECM)/Powertrain Control Module (PCM)-VSA Modulator-Control Unit)
U0155
(126)
F-CAN Malfunction (Engine Control Module (ECM)/Powertrain Control Module (PCM)-Gauge Control Module)
U0155
(126)
F-CAN Malfunction (Engine Control Module (ECM)/Powertrain Control Module (PCM)-Gauge Control Module)
VTEC/VTC DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
DTC (MIL indication )
Description
P0010
(56)
Variable Valve Timing Control (VTC) Oil Control Solenoid Valve Malfunction
P0011
(56)
Variable Valve Timing Control (VTC) System Malfunction
P0340
(57)
Camshaft Position (CMP) Sensor A No Signal
P0341
(57)
Camshaft Position (CMP) Sensor A and Crankshaft Position (CKP) Sensor Incorrect Phase Detected
P0344
(57)
Camshaft Position (CMP) Sensor A Circuit Intermittent Interruption
P1009
(56)
Variable Valve Timing Control (VTC) Advance Malfunction
P2646
(22)
Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) Circuit Low Voltage
P2647
(22)
Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) Circuit High Voltage
P2648
(21)
Rocker Arm Oil Control Solenoid (VTEC Solenoid Valve) Circuit Low Voltage
P2649
(21)
Rocker Arm Oil Control Solenoid (VTEC Solenoid Valve) Circuit High Voltage