Fuel and Emissions Systems DTC Troubleshooting Index
DTC Troubleshooting Index

DTC
(MIL indication*)
Two Drive
Cycle Detection
Detection Item
MIL
???
Variable Valve Timing Control (VTC) Oil Control Solenoid Valve Malfunction
ON
?
Variable Valve Timing Control (VTC) System Malfunction
ON
?
Barometric Pressure (BARO) Sensor Circuit Range/Performance Problem
ON
?
Mass Air Flow (MAF) Sensor Circuit Range/Performance Problem
ON
???
Fuel Rail Pressure Too Low
ON
???
Fuel Rail Pressure Too High
ON
?
Intake Air Temperature (IAT) Sensor 2 Circuit Range/Performance Problem
ON
?
Intake Air Temperature (IAT) Sensor 2 Circuit Low Voltage
ON
?
Intake Air Temperature (IAT) Sensor 2 Circuit High Voltage
ON
?
Mass Air Flow (MAF) Sensor Circuit Range/Performance Problem
ON
???
Mass Air Flow (MAF) Sensor Circuit Low Voltage
ON
???
Mass Air Flow (MAF) Sensor Circuit High Voltage
ON
?
Manifold Absolute Pressure (MAP) Sensor Out of Range
ON
???
Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
ON
???
Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
ON
?
Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem
ON
?
Intake Air Temperature (IAT) Sensor Circuit Low Voltage
ON
?
Intake Air Temperature (IAT) Sensor Circuit High Voltage
ON
?
Engine Coolant Temperature (ECT) Sensor 1 Out of Range
ON
?
Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/Performance Problem
ON
???
Engine Coolant Temperature (ECT) Sensor 1 Circuit Low Voltage
ON
???
Engine Coolant Temperature (ECT) Sensor 1 Circuit High Voltage
ON
?
Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/Performance Problem
ON
?
Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem
ON
?
Throttle Position (TP) Sensor A Out of Range
ON
???
Throttle Position (TP) Sensor A Circuit Low Voltage
ON
???
Throttle Position (TP) Sensor A Circuit High Voltage
ON
?
Engine Coolant Temperature (ECT) Sensor 1 Malfunction/Slow Response
ON
?
Cooling System Malfunction
ON
?
Air Fuel Ratio (A/F) Sensor (Sensor 1) Out of Range
ON
?
Air Fuel Ratio (A/F) Sensor (Sensor 1) Malfunction/Slow Response
ON
?
Air Fuel Ratio (A/F) Sensor (Sensor 1) Heater System Malfunction
ON
?
Air Fuel Ratio (A/F) Sensor (Sensor 1) Heater Circuit Malfunction
ON
?
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Low Voltage
ON
?
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit High Voltage
ON
?
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Slow Response
ON
?
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Heater Circuit Malfunction
ON
?
Fuel System Too Lean
ON
?
Fuel System Too Rich
ON
?
Fuel Rail Pressure Sensor Out of Range
ON
???
Fuel Rail Pressure Sensor Circuit Low Voltage
ON
???
Fuel Rail Pressure Sensor Circuit High Voltage
ON
???
No. 1 Cylinder Injector Circuit Malfunction
ON
???
No. 2 Cylinder Injector Circuit Malfunction
ON
???
No. 3 Cylinder Injector Circuit Malfunction
ON
???
No. 4 Cylinder Injector Circuit Malfunction
ON
?
Throttle Position (TP) Sensor B Out of Range
ON
???
Throttle Position (TP) Sensor B Circuit Low Voltage
ON
???
Throttle Position (TP) Sensor B Circuit High Voltage
ON
P0300 (211)
and any combination of the following:
P0301 (71)
P0302 (72)
P0303 (73)
P0304 (74)
?
Random Misfire Detected
ON
?
No. 1 Cylinder Misfire Detected
ON
?
No. 2 Cylinder Misfire Detected
ON
?
No. 3 Cylinder Misfire Detected
ON
?
No. 4 Cylinder Misfire Detected
ON
?
Knock Sensor Malfunction
ON
?
Knock Sensor Circuit Low Voltage
ON
?
Knock Sensor Circuit High Voltage
ON
???
Crankshaft Position (CKP) Sensor No Signal
ON
???
Crankshaft Position (CKP) Sensor Circuit Intermittent Interruption
ON
???
Camshaft Position (CMP) Sensor A No Signal
ON
?
Camshaft Position (CMP) Sensor A and Crankshaft Position (CKP) Sensor Incorrect Phase Detected
ON
???
Camshaft Position (CMP) Sensor A Circuit Intermittent Interruption
ON
???
No. 1 Cylinder Ignition Coil Circuit Malfunction
ON
???
No. 2 Cylinder Ignition Coil Circuit Malfunction
ON
???
No. 3 Cylinder Ignition Coil Circuit Malfunction
ON
???
No. 4 Cylinder Ignition Coil Circuit Malfunction
ON
?
Exhaust Gas Recirculation (EGR) System Leak Detected
ON
?
Exhaust Gas Recirculation (EGR) Insufficient Flow
ON
?
Exhaust Gas Recirculation (EGR) Valve Circuit Range/Performance Problem
ON
?
Exhaust Gas Recirculation (EGR) Valve Position Sensor Circuit Low Voltage
ON
?
Exhaust Gas Recirculation (EGR) Valve Position Sensor Circuit High Voltage
ON
?
Catalyst System Efficiency Below Threshold
ON
?
Evaporative Emission (EVAP) System Purge Flow Malfunction
ON
?
Evaporative Emission (EVAP) Canister Purge Valve Circuit Malfunction
ON
?
Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem
ON
?
Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage
ON
?
Fuel Tank Pressure (FTP) Sensor Circuit High Voltage
ON
?
Evaporative Emission (EVAP) System Large Leak Detected
ON
?
Evaporative Emission (EVAP) System Very Small Leak Detected
ON
???
Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Range/Performance Problem
OFF
?
Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Low Voltage
OFF
?
Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit High Voltage
OFF
?
Exhaust Gas Recirculation (EGR) Valve Position Sensor Out of Range
ON
?
Evaporative Emission (EVAP) Canister Vent Shut Valve Circuit Low Voltage
ON
?
Evaporative Emission (EVAP) Canister Vent Shut Valve Circuit High Voltage
ON
?
Exhaust Gas Recirculation (EGR) Valve Control Position Exceeded Learning Limit
ON
?
Evaporative Emission (EVAP) System High Purge Flow Detected
ON
?
Evaporative Emission (EVAP) System Low Purge Flow Detected
ON
?
Idle Control System RPM Lower than Expected
ON
?
Idle Control System RPM Higher than Expected
ON
?
Cold Start Idle Air Control System Performance Problem
ON
?
Cold Start Idle Speed Problem
ON
?
Rocker Arm Oil Pressure Sensor Circuit Low Voltage
OFF
?
Rocker Arm Oil Pressure Sensor Circuit High Voltage
OFF
?
A/C Pressure Sensor Circuit Low Voltage
OFF
?
A/C Pressure Sensor Circuit High Voltage
OFF
???
Charging System Low Voltage
OFF
?
Powertrain Control Module (PCM) Power Source Circuit Unexpected Voltage
OFF
?
Brake Pedal Position Switch Circuit Malfunction
OFF
???
Powertrain Control Module (PCM) Serial Communication Failure
ON
???
Powertrain Control Module (PCM) Programming Error
ON
???
Powertrain Control Module (PCM) Internal Control Module Malfunction
ON
?
Starter Cut Relay Diagnosis Circuit Malfunction
OFF
???
Starter Cut Relay Diagnosis Circuit Low Voltage
OFF
???
Starter Cut Relay Diagnosis Circuit High Voltage
OFF
???
Powertrain Control Module (PCM) Internal Malfunction (Torque Calculation)
ON
???
Powertrain Control Module (PCM) Internal Circuit Malfunction
ON
???
Powertrain Control Module (PCM) Internal Control Module Keep Alive Memory (KAM) Error
ON
???
VIN Not Programmed or Mismatch
ON
???
Sensor Reference Voltage A Malfunction
ON
???
Sensor Reference Voltage B Malfunction
ON
???
ACG No Charging Malfunction
OFF
?
Powertrain Control Module (PCM) Power Control Circuit/Internal Circuit Malfunction
ON
???
Internal VCC Power Malfunction
ON
?
Brake Pedal Position Switch (NC) Malfunction
OFF
?
Output Shaft (Countershaft) Speed Sensor Circuit Malfunction
ON
???
Clutch Pedal Position Switch A Circuit High Voltage
OFF
?
Clutch Pedal Position Switch B Circuit Low Voltage
OFF
???
Variable Valve Timing Control (VTC) Advance Malfunction
ON
?
Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem
ON
?
Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem
ON
???
Charging System High Voltage
OFF
???
Battery Sensor Internal Failure
OFF
???
Electronic Throttle Control System (ETCS) Control Relay ON Malfunction
ON
???
Electronic Throttle Control System (ETCS) Control Relay OFF Malfunction
ON
???
Throttle Valve Default Position Spring Performance Problem
ON
???
Throttle Valve Return Spring Performance Problem
ON
???
Alternator B Terminal Circuit Low Voltage
OFF
???
PGM-FI-ACG LIN Communication Error
OFF
???
PGM-FI-Battery Sensor LIN Communication Error
OFF
???
ACG High-temperature
OFF
???
Starter Cut Relay 1 Control Circuit Low Voltage
OFF
???
Starter Cut Relay 2 Control Circuit Low Voltage
OFF
???
Starter Cut Relay 1 Control Circuit High Voltage
OFF
???
Starter Cut Relay 2 Control Circuit High Voltage
OFF
?
Clutch Switch Incorrect Correlation
OFF
?
Manifold Absolute Pressure (MAP) Sensor Signal Higher Than Expected
ON
?
Manifold Absolute Pressure (MAP) Sensor Signal Lower Than Expected
ON
?
Post Catalyst Fuel Trim System Too Lean (Bank 1)
ON
?
Post Catalyst Fuel Trim System Too Rich (Bank 1)
ON
???
Electronic Throttle Control System (ETCS) Malfunction
ON
???
Throttle Actuator Control Module Performance
ON
???
Throttle Actuator Current Range/Performance Problem
ON
???
Throttle Actuator Control Throttle Body Range/Performance
ON
?
Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP) Sensor D) Out of Range
ON
???
Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP) Sensor D) Circuit Low Voltage
ON
???
Accelerator Pedal Position (APP) Sensor A (Throttle Position (TP) Sensor D) Circuit High Voltage
ON
?
Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP) Sensor E) Out of Range
ON
???
Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP) Sensor E) Circuit Low Voltage
ON
???
Accelerator Pedal Position (APP) Sensor B (Throttle Position (TP) Sensor E) Circuit High Voltage
ON
???
Throttle Position (TP) Sensor A/B Incorrect Voltage Correlation
ON
???
Accelerator Pedal Position (APP) Sensor A/B (Throttle Position (TP) Sensor D/E) Incorrect Voltage Correlation
ON
???
Throttle Actuator Control System Idle Position Not Learned
ON
?
Engine Coolant Temperature (ECT) Sensor 2 Out of Range
ON
?
Engine Coolant Temperature (ECT) Sensor 2 Circuit Range/Performance Problem
ON
?
Engine Coolant Temperature (ECT) Sensor 2 Circuit Low Voltage
ON
?
Engine Coolant Temperature (ECT) Sensor 2 Circuit High Voltage
ON
?
Air Fuel Ratio (A/F) Sensor (Sensor 1) Signal Stuck Lean
ON
?
IAT Sensor 1-2 Incorrect Correlation
ON
?
Air Fuel Ratio Variation of Cylinders
ON
?
Barometric Pressure (BARO) Sensor Circuit Malfunction
ON
?
Barometric Pressure (BARO) Sensor Circuit Low Voltage
ON
?
Barometric Pressure (BARO) Sensor Circuit High Voltage
ON
?
Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS Circuit High Voltage
ON
?
Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS+ Circuit Low Voltage
ON
?
Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS- Circuit Low Voltage
ON
?
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Signal Stuck Lean
ON
?
Intake Air System Leak
ON
?
Exhaust Gas Recirculation (EGR) System Malfunction
ON
?
Evaporative Emission (EVAP) Canister Vent Shut Valve Stuck Closed Malfunction
ON
?
Powertrain Control Module (PCM) Ignition Off Internal Timer Malfunction
ON
???
High Pressure Fuel Pump Spill Valve Malfunction
ON
?
Rocker Arm Oil Pressure Switch Circuit Low Voltage
ON
?
Rocker Arm Oil Pressure Switch Circuit High Voltage
ON
???
Rocker Arm Oil Control Solenoid Circuit Low Voltage
ON
???
Rocker Arm Oil Control Solenoid Circuit High Voltage
ON
?
Air Fuel Ratio (A/F) Sensor (Sensor 1) Circuit Range/Performance Problem
ON
?
Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Range/Performance Problem
ON
???
F-CAN Malfunction (BUS-OFF (Powertrain Control Module (PCM)))
ON
???
F-CAN Malfunction (Powertrain Control Module (PCM) - ACC Unit / Multipurpose Camera Unit)
OFF
???
F-CAN Malfunction (Powertrain Control Module (PCM)-VSA Modulator-Control Unit)
OFF
???
F-CAN Malfunction (Powertrain Control Module (PCM)-EPS Control Unit)
OFF
???
F-CAN Malfunction (Powertrain Control Module (PCM)-CAN Gateway)
ON
???
F-CAN Malfunction (Powertrain Control Module (PCM)-Gauge Control Module)
ON
???
F-CAN Malfunction (Powertrain Control Module (PCM)-Power Control Unit (PCU))
OFF
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.
*: These DTCs are indicated by a blinking MIL when the SCS line is jumped with the HDS. Some DTCs do not cause the MIL to blink when the SCS line is jumped; these DTCs are shown in the gauge display.
*1: With keyless access system
*2: M/T
*3: CVT
*4: M/T with keyless access system
*5: With A/C
*6: With multipurpose camera unit