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DTC Troubleshooting Index

NOTE: For navigation links to specific DTC tests, see DTC INDEX (EXCEPT HYBRID) or DTC INDEX (HYBRID) .
DTC TROUBLESHOOTING INDEX

DTC (MIL indication(1)) Two Drive Cycle Detection Detection Item MIL
P0101 (50) ◦ Mass Air Flow (MAF) Sensor Circuit Range/Performance Problem ON
P0102 (50) - Mass Air Flow (MAF) Sensor Circuit Low Voltage ON
P0103 (50) - Mass Air Flow (MAF) Sensor Circuit High Voltage ON
P0107 (3) - Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage ON
P0108 (3) - Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage ON
P0111 (10) ◦ Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem ON
P0112 (10) - Intake Air Temperature (IAT) Sensor Circuit Low Voltage ON
P0113 (10) - Intake Air Temperature (IAT) Sensor Circuit High Voltage ON
P0116 (86) ◦ Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/Performance Problem ON
P0117 (6) - Engine Coolant Temperature (ECT) Sensor 1 Circuit Low Voltage ON
P0118 (6) - Engine Coolant Temperature (ECT) Sensor 1 Circuit High Voltage ON
P0122 (7) - Throttle Position (TP) Sensor A Circuit Low Voltage ON
P0123 (7) - Throttle Position (TP) Sensor A Circuit High Voltage ON
P0125 (86) ◦ Engine Coolant Temperature (ECT) Sensor 1 Malfunction/Slow Response ON
P0128 (87) ◦ Cooling System Malfunction ON
P0133 (61) ◦ Air Fuel Ratio (A/F) Sensor (Sensor 1) Malfunction/Slow Response ON
P0134 (41) ◦ Air Fuel Ratio (A/F) Sensor (Sensor 1) Heater System Malfunction ON
P0135 (41) - Air Fuel Ratio (A/F) Sensor (Sensor 1) Heater Circuit Malfunction ON
P0137 (63) - Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Low Voltage ON
P0138 (63) - Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit High Voltage ON
P0139 (63) ◦ Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Slow Response ON
P0141 (65) - Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Heater Circuit Malfunction ON
P0171 (45) ◦ Fuel System Too Lean ON
P0172 (45) ◦ Fuel System Too Rich ON
P0222 7) - Throttle Position (TP) Sensor B Circuit Low Voltage ON
P0223 (7) - Throttle Position (TP) Sensor B Circuit High Voltage ON
P0300 (75) and any combination of the following:
P0301 (71)
P0302 (72)
P0303 (73)
P0304 (74)		 ◦ Random Misfire Detected ON
P0301 (71) ◦ No. 1 Cylinder Misfire Detected ON
P0302 (72) ◦ No. 2 Cylinder Misfire Detected ON
P0303 (73) ◦ No. 3 Cylinder Misfire Detected ON
P0304 (74) ◦ No. 4 Cylinder Misfire Detected ON
P0325 (23) - Knock Sensor Circuit Malfunction ON
P0335 (4) - Crankshaft Position (CKP) Sensor No Signal ON
P0339 (4) - Crankshaft Position (CKP) Sensor Circuit Intermittent Interruption ON
P0351 (71) - No. 1 Cylinder Ignition Coil Circuit Malfunction ON
P0352 (72) - No. 2 Cylinder Ignition Coil Circuit Malfunction ON
P0353 (73) - No. 3 Cylinder Ignition Coil Circuit Malfunction ON
P0354 (74) - No. 4 Cylinder Ignition Coil Circuit Malfunction ON
P0365 (8) - Camshaft Position (CMP) Sensor No Signal ON
P0369 (8) - Camshaft Position (CMP) Sensor Circuit Intermittent Interruption ON
P0400 (80) ◦ Exhaust Gas Recirculation (EGR) System Leak Detected ON
P0401 (80) ◦ Exhaust Gas Recirculation (EGR) Insufficient Flow ON
P0404 (12) ◦ Exhaust Gas Recirculation (EGR) Valve Circuit Range/Performance Problem ON
P0406 (12) - Exhaust Gas Recirculation (EGR) Valve Position Sensor Circuit High Voltage ON
P0420 (67) ◦ Catalyst System Efficiency Below Threshold ON
P0443 (92) - Evaporative Emission (EVAP) Canister Purge Valve Circuit Malfunction ON
P0451 (91) ◦ Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem ON
P0452 (91) - Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage ON
P0453 (91) - Fuel Tank Pressure (FTP) Sensor Circuit High Voltage ON
P0455 (90) ◦ Evaporative Emission (EVAP) System Large Leak Detected ON
P0456 (90) ◦ Evaporative Emission (EVAP) System Very Small Leak Detected ON
P0457 (90) ◦ Evaporative Emission (EVAP) System Leak Detected/Fuel Fill Cap Loose or Missing ON
P0461 (121) - Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Range/Performance Problem OFF
P0462 (121) - Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Low Voltage OFF
P0463 (121) - Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit High Voltage OFF
P0496 (92) ◦ Evaporative Emission (EVAP) System High Purge Flow Detected ON
P0497 (90)(6) ◦ Evaporative Emission (EVAP) System Low Purge Flow Detected ON
P0497 (90)(7) ◦ Evaporative Emission (EVAP) System Low Purge Flow Detected ON
P0498 (117) - Evaporative Emission (EVAP) Canister Vent Shut Valve Circuit Low Voltage ON
P0499 (117) - Evaporative Emission (EVAP) Canister Vent Shut Valve Circuit High Voltage ON
P0506 (14) ◦ Idle Control System RPM Lower Than Expected ON
P0507 (14) ◦ Idle Control System RPM Higher Than Expected ON
P050A (167) ◦ Cold Start Idle Air Control System Performance Problem ON
P050B (167) ◦ Cold Start Ignition Timing Control System Performance Problem ON
P0522 (22) - Rocker Arm Oil Pressure Sensor (Engine Oil Pressure (EOP) Sensor) Circuit Low Voltage ON
P0523 (22) - Rocker Arm Oil Pressure Sensor (Engine Oil Pressure (EOP) Sensor) Circuit High Voltage ON
P0532 (191) - A/C Pressure Sensor Circuit Low Voltage OFF
P0533 (191) - A/C Pressure Sensor Circuit High Voltage OFF
P0562 (34) - Charging System Low Voltage OFF
P0563 (34) - Engine Control Module (ECM)/Powertrain Control Module (PCM) Power Source Circuit Unexpected Voltage OFF
P0602 (196) - Engine Control Module (ECM)/Powertrain Control Module (PCM) Programming Error ON
P0603 (131)(2) - Engine Control Module (ECM)/Powertrain Control Module (PCM) Internal Control Module Keep Alive Memory (KAM) Error ON
P0606 (-) - Engine Control Module (ECM)/Powertrain Control Module (PCM) Processor Malfunction ON
P060A (131)(2) - Powertrain Control Module (PCM) (A/T System) Internal Control Module Malfunction ON
P062F (131)(7) - Engine Control Module (ECM)/Powertrain Control Module (PCM) Internal Control Module Keep Alive Memory (KAM) Error ON
P0630 (139) - VIN Not Programmed or Mismatch ON
P0685 (135) ◦ Engine Control Module (ECM)/Powertrain Control Module (PCM) Power Control Circuit/Internal Circuit Malfunction ON
P0720 (122)(2), (3) - Output Shaft (Countershaft) Speed Sensor Circuit Malfunction ON
P0720 (122)(5) - Output Shaft (Countershaft) Speed Sensor Circuit Malfunction ON
P1077 (106) ◦ Intake Manifold Tuning (IMT) Valve Stuck in High RPM Position ON
P1078 (106) ◦ Intake Manifold Tuning (IMT) Valve Stuck in Low RPM Position ON
P1109 (13) - Barometric Pressure (BARO) Sensor Circuit Out of Range High ON
P1116 (86) ◦ Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/Performance Problem ON
P1128 (5) ◦ Manifold Absolute Pressure (MAP) Sensor Signal Lower Than Expected ON
P1129 (5) ◦ Manifold Absolute Pressure (MAP) Sensor Signal Higher Than Expected ON
P1157 (48) - Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS Circuit High voltage UN
P1172 (61) - Air Fuel Ratio (A/F) Sensor (Sensor 1) Circuit Out of Range High ON
P1297 (20)(4) - Electrical Load Detector (ELD) Circuit Low Voltage OFF
P1298 (20)(4) - Electrical Load Detector (ELD) Circuit High Voltage OFF
P1454 (91) ◦ Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem ON
P145C (90)(7) ◦ Evaporative Emission (EVAP) System Purge Flow Malfunction ON
P1549 (34) - Charging System High Voltage OFF
P1658 (40) - Electronic Throttle Control System (ETCS) Control Relay ON Malfunction ON
P1659 (40) - Electronic Throttle Control System (ETCS) Control Relay OFF Malfunction ON
P1683 (40) - Throttle Valve Default Position Spring Performance Problem ON
P1684 (40) - Throttle Valve Return Spring Performance Problem ON
P16BB (116) - Alternator B Terminal Circuit Low Voltage OFF
P16BC (116) - Alternator FR Terminal Circuit/IGP Circuit Low Voltage OFF
P2101 (40) - Electronic Throttle Control System (ETCS) Malfunction ON
P2118 (40) - Throttle Actuator Current Range/Performance Problem ON
P2122 (37) - Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP) Sensor D) Circuit Low Voltage ON
P2123 (37) - Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP) Sensor D) Circuit High Voltage ON
P2127 (37) - Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP) Sensor E) Circuit Low Voltage ON
P2128 (37) - Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP) Sensor E) Circuit High Voltage ON
P2135 (7) - Throttle Position (TP) Sensor A/B Incorrect Voltage Correlation ON
P2138 (37) - Accelerator Pedal Position (APP) Sensor A/B (Throttle Position (TP) Sensor D/E) Incorrect Voltage Correlation ON
P2176 (40) - Throttle Actuator Control System Idle Position Not Learned ON
P2183 (192) ◦ Engine Coolant Temperature (ECT) Sensor 2 Circuit Range/Performance Problem ON
P2184 (192) - Engine Coolant Temperature (ECT) Sensor 2 Circuit Low Voltage ON
P2185 (192) - Engine Coolant Temperature (ECT) Sensor 2 Circuit High Voltage ON
P2195 (48) - Air Fuel Ratio (A/F) Sensor (Sensor 1) Signal Stuck Lean ON
P2227 (13) ◦ Barometric Pressure (BARO) Sensor Circuit Range/Performance Problem ON
P2228 (13) - Barometric Pressure (BARO) Sensor Circuit Low Voltage ON
P2229 (13) - Barometric Pressure (BARO) Sensor Circuit High Voltage ON
P2238 (48) - Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS+ Circuit Low Voltage ON
P2252 (48) - Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS- Circuit Low Voltage ON
P2270 (63) ◦ Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Signal Stuck Lean ON
P2271 (63) ◦ Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Signal Stuck Rich ON
P2413 (12) ◦ Exhaust Gas Recirculation (EGR) System Malfunction ON
P2422 (117) ◦ Evaporative Emission (EVAP) Canister Vent Shut Valve Stuck Closed Malfunction ON
P2610C (132) - Engine Control Module (ECM)/Powertrain Control Module (PCM) Ignition Off Internal Timer Malfunction ON
P2646 (22) - VTEC System Stuck OFF ON
P2647 (22) - VTEC System Stuck ON ON
P2648 (21) - Rocker Arm Oil Control Solenoid Circuit Low Voltage ON
P2649 (21) - Rocker Arm Oil Control Solenoid Circuit High Voltage ON
P2A00 (61) ◦ Air Fuel Ratio (A/F) Sensor (Sensor 1) Circuit Range/Performance Problem ON
U0028 (126)(9) - F-CAN Malfunction (BUS-OFF (Engine Control Module (ECM))) ON
U0122 (126)(8) - F-CAN Malfunction (Engine Control Module (ECM)/Powertrain Control Module (PCM)-VSA Modulator-Control Unit) OFF
U0131 (126)(9) - F-CAN Malfunction (Engine Control Module (ECM)-EPS Control Unit) OFF
U0155 (126) - F-CAN Malfunction (Engine Control Module (ECM)/Powertrain Control Module (PCM)-Gauge Control Module) ON
U0300 (131)(2) - PGM-FI System and A/T System Program Version Mismatch ON
NOTE: The above DTCs are indicated when the PGM-FI system is selected with the HDS.
Some automatic transmission DTCs cause the MIL to come on. If the MIL is on and no DTCs are indicated in the PGM-FI system, select the A/T system, and check for automatic transmission DTCs.
(1) These DTCs are indicated by a blinking MIL when the SCS line is jumped with the HDS.
(2) A/T
(3) The D indicator and the MIL may come on at the same time (A/T).
(4) USA models and Canada models with EPS
(5) M/T
(6) '06-08 models
(7) 6:'09-11 models
(8) With VSA
(9) With EPS
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