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Diagnostic Trouble Code Chart

HINT:

Parameters listed in the chart may be different from your readings depending on the type of instrument used and other factors.

During the DTC check, refer to the table below if a malfunction code is displayed. For details about each code, refer to the page number in the DTC chart's left column.

SFI SYSTEM 

DIAGNOSTIC TROUBLE CODE CHART

DTC Code Detection Item Trouble Area MIL Memory
P0010  Camshaft Position "A" Actuator Circuit (Bank 1)
  1. Open or short in OCV circuit
  2. OCV valve
  3. ECM
 Comes on DTC Stored
P0011  Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)
  1. Valve timing
  2. OCV
  3. VVT controller assembly
  4. ECM
 Comes on DTC Stored
P0012  Camshaft Position "A" - Timing Over-Retarded (Bank 1)
  1. Valve timing
  2. OCV
  3. VVT controller assembly
  4. ECM
 Comes on DTC Stored
P0016  Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
  1. Mechanical system (jumped tooth of timing chain, chain stretched)
  2. ECM
 Comes on DTC Stored
P0031  Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)
  1. Open In heater circuit of A/F sensor
  2. A/F sensor heater
  3. EFI relay
  4. ECM
 Comes on DTC Stored
P0032  Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
  1. Short in heater circuit of A/F sensor
  2. A/F sensor heater
  3. EFI relay
  4. ECM
 Comes on DTC Stored
P0037  Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2)
  1. Open or short in heater circuit of heated oxygen sensor
  2. Heated oxygen sensor heater
  3. EFI relay
  4. ECM
 Comes on DTC Stored
P0038  Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)
  1. Open or short in heater circuit of heated oxygen sensor
  2. Heated oxygen sensor heater
  3. EFI relay
  4. ECM
 Comes on DTC Stored
P0100  Mass or Volume Air Flow Circuit
  1. Open or short in mass air flow meter circuit
  2. Mass air flow meter
  3. ECM
 Comes on DTC Stored
P0101  Mass or Volume Air Flow Circuit Range / Performance Problem Mass air flow meter Comes on DTC Stored
P0102  Mass or Volume Air Flow Circuit Low Input
  1. Open or short in mass air flow meter circuit
  2. Mass air flow meter
  3. ECM
 Comes on DTC Stored
P0103  Mass or Volume Air Flow Circuit High Input
  1. Open or short in mass air flow meter circuit
  2. Mass air flow meter
  3. ECM
 Comes on DTC Stored
P0110  Intake Air Temperature Circuit
  1. Open or short in intake air temp, sensor circuit
  2. Intake air temperature sensor (built in mass air flow meter)
  3. ECM
 Comes on DTC Stored
P0112  Intake Air Temperature Circuit Low Input
  1. Open or short in intake air temp, sensor circuit
  2. Intake air temperature sensor (built in mass air flow meter)
  3. ECM
 Comes on DTC Stored
P0113  Intake Air Temperature Circuit High Input
  1. Open or short in intake air temp, sensor circuit
  2. Intake air temperature sensor (built in mass air flow meter)
  3. ECM
 Comes on DTC Stored
P0115  Engine Coolant Temperature Circuit
  1. Open or short in engine coolant temperature sensor circuit
  2. Engine coolant temperature sensor
  3. ECM
 Comes on DTC Stored
P0116  Engine Coolant Temperature Circuit Range / Performance Problem
  1. Cooling system
  2. Engine coolant temperature sensor
 Comes on DTC Stored
P0117  Engine Coolant Temperature Circuit Low Input
  1. Open or short in engine coolant temperature sensor circuit
  2. Engine coolant temperature sensor
  3. ECM
 Comes on DTC Stored
P0118  Engine Coolant Temperature Circuit High Input
  1. Open or short in engine coolant temperature sensor circuit
  2. Engine coolant temperature sensor
  3. ECM
 Comes on DTC Stored
P0120  Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction
  1. Throttle position sensor (built in throttle body)
  2. ECM
 Comes on DTC Stored
P0121  Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem Throttle body assembly (Throttle position sensor) Comes on DTC Stored
P0122  Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input
  1. Throttle position sensor (built in throttle body)
  2. Short in VTA1 circuit
  3. Open in VC circuit
  4. ECM
 Comes on DTC Stored
P0123  Throttle / Pedal Position Sensor / Switch "A" Circuit High Input
  1. Throttle position sensor (built in throttle body)
  2. Open in VTA1 circuit
  3. Open in E2 circuit
  4. VC and VTA1 circuits are short-circuited
  5. ECM
 Comes on DTC Stored
P0125  Insufficient Coolant Temperature for Closed Loop Fuel Control
  1. Cooling system
  2. Engine coolant temperature sensor
  3. Thermostat
 Comes on DTC Stored
P0128  Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
  1. Thermostat
  2. Cooling system
  3. Engine coolant temperature sensor
  4. ECM
 Comes on DTC Stored
P0136  Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
  1. Open or short in HO2 sensor (sensor 2) circuit
  2. HO2 sensor (sensor 2)
  3. HO2 sensor heater (sensor 2)
  4. Air-fuel Ratio (A/F) sensor (sensor 1)
  5. EFI relay
  6. Gas leakage from exhaust system
 Comes on DTC Stored
P0137  Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2)
  1. Open in HO2 sensor (sensor 2) circuit
  2. HO2 sensor (sensor 2)
  3. HO2 sensor heater (sensor 2)
  4. EFI relay
  5. Gas leakage from exhaust system
 Comes on DTC Stored
P0138  Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)
  1. Short in HO2 sensor (sensor 2) circuit
  2. HO2 sensor (sensor 2)
  3. ECM internal circuit malfunction
 Comes on DTC Stored
P0171  System Too Lean (Bank 1)
  1. Air induction system
  2. Injector blockage
  3. Mass air flow meter
  4. Engine coolant temperature sensor
  5. Fuel pressure
  6. Gas leakage in exhaust system
  7. Open or short in A/F sensor circuit
  8. A/F sensor
  9. A/F sensor heater
  10. EFI relay
  11. Open or short in A/F sensor heater and EFI relay circuit
  12. PCV hose connection
  13. PCV hose
 Comes on DTC Stored
P0172  System Too Rich (Bank 1)
  1. Injector leak, blockage
  2. Mass airflow meter
  3. Engine coolant temperature sensor
  4. Ignition system
  5. Fuel pressure
  6. Gas leakage in exhaust system
  7. Open or short in A/F sensor circuit
  8. A/F sensor
  9. A/F sensor heater
  10. Open or short in A/F sensor heater and EFI relay circuit
  11. EFI relay
 Comes on DTC Stored
P0220  Throttle / Pedal Position Sensor / Switch "B" Circuit
  1. Throttle position sensor (built in throttle body)
  2. ECM
 Comes on DTC Stored
P0222  Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input
  1. Throttle position sensor (built in throttle body)
  2. Short in VTA2 circuit
  3. Open in VC circuit
  4. ECM
 Comes on DTC Stored
P0223  Throttle / Pedal Position Sensor / Switch "B" Circuit High Input
  1. Throttle position sensor (built in throttle body)
  2. Open in VTA2 circuit
  3. Open in E2 circuit
  4. VC and VTA2 circuits are short-circuited
  5. ECM
 Comes on DTC Stored
P0300  Random / Multiple Cylinder Misfire Detected
  1. Open or short in engine wire
  2. Connector connection
  3. Vacuum hose connection
  4. Ignition system
  5. Injector
  6. Fuel pressure
  7. Mass air flow meter
  8. Engine coolant temp, sensor
  9. Compression pressure
  10. Valve clearance
  11. Valve timing
  12. PCV hose connection
  13. PCV hose
  14. ECM
 Comes on or blinks DTC Stored
P0301  Cylinder 1 Misfire Detected
  1. Open or short in engine wire
  2. Connector connection
  3. Vacuum hose connection
  4. Ignition system
  5. Injector
  6. Fuel pressure
  7. Mass air flow meter
  8. Engine coolant temp, sensor
  9. Compression pressure
  10. Valve clearance
  11. Valve timing
  12. PCV hose connection
  13. PCV hose
  14. ECM
 Comes on or blinks DTC Stored
P0302  Cylinder 2 Misfire Detected
  1. Open or short in engine wire
  2. Connector connection
  3. Vacuum hose connection
  4. Ignition system
  5. Injector
  6. Fuel pressure
  7. Mass air flow meter
  8. Engine coolant temp, sensor
  9. Compression pressure
  10. Valve clearance
  11. Valve timing
  12. PCV hose connection
  13. PCV hose
  14. ECM
 Comes on or blinks DTC Stored
P0303  Cylinder 3 Misfire Detected
  1. Open or short in engine wire
  2. Connector connection
  3. Vacuum hose connection
  4. Ignition system
  5. Injector
  6. Fuel pressure
  7. Mass air flow meter
  8. Engine coolant temp, sensor
  9. Compression pressure
  10. Valve clearance
  11. Valve timing
  12. PCV hose connection
  13. PCV hose
  14. ECM
 Comes on or blinks DTC Stored
P0304  Cylinder 4 Misfire Detected
  1. Open or short in engine wire
  2. Connector connection
  3. Vacuum hose connection
  4. Ignition system
  5. Injector
  6. Fuel pressure
  7. Mass air flow meter
  8. Engine coolant temp, sensor
  9. Compression pressure
  10. Valve clearance
  11. Valve timing
  12. PCV hose connection
  13. PCV hose
  14. ECM
 Comes on or blinks DTC Stored
P0327  Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
  1. Short in knock sensor circuit
  2. Knock sensor
  3. ECM
 Comes on DTC Stored
P0328  Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
  1. Open in knock sensor circuit
  2. Knock sensor
  3. ECM
 Comes on DTC Stored
P0335  Crankshaft Position Sensor "A" Circuit
  1. Open or short in crankshaft position sensor circuit
  2. Crankshaft position sensor
  3. Signal plate (Crankshaft position sensor plate No.1)
  4. ECM
 Comes on DTC Stored
P0339  Crankshaft Position Sensor "A" Circuit Intermittent
  1. Open or short in crankshaft position sensor circuit
  2. Crankshaft position sensor
  3. Signal plate (Crankshaft position sensor plate No. 1)
  4. ECM
 Does not come on DTC Stored
P0340  Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)
  1. Open or short in camshaft position sensor circuit
  2. Camshaft position sensor
  3. Camshaft timing gear
  4. Timing chain has a jumped tooth
  5. ECM
 Comes on DTC Stored
P0341  Camshaft Position Sensor "A" Circuit Range / Performance (Bank 1 or Single Sensor)
  1. Open or short in camshaft position sensor circuit
  2. Camshaft position sensor
  3. Camshaft timing gear
  4. Timing chain has a jumped tooth
  5. ECM
 Comes on DTC Stored
P0351  Ignition Coil "A" Primary / Secondary Circuit
  1. Ignition system
  2. Open or short in IGF and IGT1 to 4 circuits from ignition coil with igniter assembly to ECM
  3. No. 1-4 ignition coil assembly
  4. ECM
 Comes on DTC Stored
P0352  Ignition Coil "B" Primary / Secondary Circuit
  1. Ignition system
  2. Open or short in IGF and IGT1 to 4 circuits from ignition coil with igniter assembly to ECM
  3. No. 1 - 4 ignition coil assembly
  4. ECM
 Comes on DTC Stored
P0353  Ignition Coil "C" Primary / Secondary Circuit
  1. Ignition system
  2. Open or short in IGF and IGT1 to 4 circuits from ignition coil with igniter assembly to ECM
  3. No. 1-4 ignition coil assembly
  4. ECM
 Comes on DTC Stored
P0354  Ignition Coil "D" Primary / Secondary Circuit
  1. Ignition system
  2. Open or short in IGF and IGT1 to 4 circuits from ignition coil with igniter assembly to ECM
  3. No. 1 - 4 ignition coil assembly
  4. ECM
 Comes on DTC Stored
P0420  Catalyst System Efficiency Below Threshold (Bank 1)
  1. Front exhaust pipe (with TWC)
  2. Gas leakage from exhaust system
  3. Air Fuel Ratio (A/F) sensor (sensor 1)
  4. Heated Oxygen (HO2) sensor (sensor 2)
 Comes on DTC Stored
P043E  Evaporative Emission System Reference Orifice Clog Up
  1. Pump module
  2. Connector/Wire harness (Pump module - ECM)
  3. ECM
  4. Leakage from EVAP system
 Comes on DTC Stored
P043F  Evaporative Emission System Reference Orifice High Flow
  1. Pump module
  2. Connector/Wire harness (Pump module - ECM)
  3. ECM
  4. Leakage from EVAP system
 Comes on DTC Stored
P0441  Evaporative Emission Control System Incorrect Purge Flow
  1. Purge VSV
  2. Connector/Wire harness (Purge VSV - ECM)
  3. ECM
  4. Pomp module
  5. Leakage from EVAP system
 Comes on DTC Stored
P0450  Evaporative Emission Control System Pressure Sensor / Switch
  1. Pump module
  2. Connector/Wire harness (Pump module - ECM)
  3. ECM
 Comes on DTC Stored
P0451  Evaporative Emission Control System Pressure Sensor Range / Performance
  1. Pump module
  2. Connector/Wire harness (Pump module - ECM)
  3. ECM
 Comes on DTC Stored
P0452  Evaporative Emission Control System Pressure Sensor / Switch Low Input
  1. Pump module
  2. Connector/Wire harness (Pump module - ECM)
  3. ECM
 Comes on DTC Stored
P0453  Evaporative Emission Control System Pressure Sensor / Switch High Input
  1. Pump module
  2. Connector/Wire harness (Pump module - ECM)
  3. ECM
 Comes on DTC Stored
P0455  Evaporative Emission Control System Leak Detected (Gross Leak)
  1. Fuel tank cap (loose)
  2. Leakage from EVAP line (Canister - Fuel tank)
  3. Leakage from EVAP line (Purge VSV - Canister)
  4. Pump module
  5. Leakage from fuel tank
  6. Leakage from canister
 Comes on DTC Stored
P0456  Evaporative Emission Control System Leak Detected (Very Small Leak)
  1. Fuel tank cap (loose)
  2. Leakage from EVAP line (Canister - Fuel tank)
  3. Leakage from EVAP line (Purge VSV - Canister)
  4. Pump module
  5. Leakage from fuel tank
  6. Leakage from canister
 Comes on DTC Stored
P0500  Vehicle Speed Sensor "A"
  1. Combination meter
  2. Open or short in speed sensor circuit
  3. Vehicle speed sensor
  4. ECM
  5. Skid Control ECU
 Comes on DTC Stored
P0503  Vehicle Speed Sensor "A" Intermittent / Erratic / High
  1. Combination meter
  2. Open or short in speed sensor circuit
  3. Vehicle speed sensor
  4. ECM
  5. Skid Control ECU
 Does not come on DTC Stored
P0504  Brake Switch "A" / "B" Correlation
  1. Short in stop light switch signal circuit
  2. Stop fuse
  3. Stop light switch
  4. ECM
 Does not come on DTC Stored
P0505  Idle Control System Malfunction
  1. Electric throttle control system
  2. Air induction system
  3. PCV hose connection
 Comes on DTC Stored
P0560  System Voltage
  1. Open in back-up power source circuit
  2. ECM
 Comes on DTC Stored
P0604  Internal Control Module Random Access Memory (RAM) Error ECM Comes on DTC Stored
P0606  ECM / PCM Processor
  1. Exhaust gas leak
  2. HO2 sensor
  3. ECM
 Comes on DTC Stored
P0607  Control Module Performance ECM Comes on DTC Stored
P0617  Starter Relay Circuit High
  1. Short in PNP switch assembly circuit
  2. PNP switch assembly
  3. Ignition switch
  4. ECM
 Comes on DTC Stored
P0630  VIN not Programmed or Mismatch - ECM /PCM ECM Comes on DTC Stored
P0657  Actuator Supply Voltage Circuit / Open ECM Comes on DTC Stored
P0705  Transmission Range Sensor Circuit Malfunction (PRNDL Input)
  1. Short in PNP switch circuit
  2. PNP switch
  3. ECM
 Comes on DTC Stored
P2102  Throttle Actuator Control Motor Circuit Low
  1. Open in throttle actuator circuit
  2. Throttle actuator
  3. ECM
 Comes on DTC Stored
P2103  Throttle Actuator Control Motor Circuit High
  1. Short in throttle actuator circuit
  2. Throttle actuator
  3. Throttle valve
  4. Throttle body assembly
  5. ECM
 Comes on DTC Stored
P2111  Throttle Actuator Control System - Stuck Open
  1. Throttle actuator circuit
  2. Throttle actuator
  3. Throttle body
  4. Throttle valve
 Comes on DTC Stored
P2112  Throttle Actuator Control System - Stuck Closed
  1. Throttle actuator circuit
  2. Throttle actuator
  3. Throttle body
  4. Throttle valve
 Comes on DTC Stored
P2118  Throttle Actuator Control Motor Current Range / Performance
  1. Open in ETCS power source circuit
  2. ETCS fuse
  3. ECM
 Comes on DTC Stored
P2119  Throttle Actuator Control Throttle Body Range / Performance
  1. Electronic throttle control system
  2. ECM
 Comes on DTC Stored
P2120  Throttle / Pedal Position Sensor / Switch "D" Circuit
  1. Accelerator pedal position sensor
  2. ECM
 Comes on DTC Stored
P2121  Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
  1. Open or short in accelerator pedal position sensor circuit
  2. Accelerator pedal position sensor
  3. ECM
 Comes on DTC Stored
P2122  Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input
  1. Accelerator pedal position sensor
  2. Open in VCP1 circuit
  3. VPA circuit open or ground short
  4. ECM
 Comes on DTC Stored
P2123  Throttle / Pedal Position Sensor / Switch "D" Circuit High Input
  1. Accelerator pedal position sensor
  2. Open in EPA circuit
  3. ECM
 Comes on DTC Stored
P2125  Throttle / Pedal Position Sensor / Switch "E" Circuit
  1. Accelerator pedal position sensor
  2. ECM
 Comes on DTC Stored
P2127  Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input
  1. Accelerator pedal position sensor
  2. Open in VCP2 circuit
  3. VPA2 circuit open or ground short
  4. ECM
 Comes on DTC Stored
P2128  Throttle / Pedal Position Sensor / Switch "E" Circuit High Input
  1. Accelerator pedal position sensor
  2. Open in EPA2 circuit
  3. ECM
 Comes on DTC Stored
P2135  Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
  1. Short in VTA1 and VTA2 circuits
  2. Throttle position sensor
  3. ECM
 Comes on DTC Stored
P2138  Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
  1. VPA and VPA2 circuit are short circuited
  2. Accelerator pedal position sensor
  3. ECM
 Comes on DTC Stored
P2195  Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1)
  1. Open or short in A/F sensor circuit
  2. A/F sensor
  3. A/F sensor heater
  4. EFI relay
  5. Open or short in A/F sensor heater and EFI relay circuit
  6. Air induction system
  7. Fuel pressure
  8. Injector
  9. ECM
 Comes on DTC Stored
P2196  Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1)
  1. Open or short in A/F sensor circuit
  2. A/F sensor
  3. A/F sensor heater
  4. EFI relay
  5. Open or short in A/F sensor heater and EFI relay circuit
  6. Air induction system
  7. Fuel pressure
  8. Injector
  9. ECM
 Comes on DTC Stored
P2238  Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1)
  1. Open or short in A/F sensor circuit
  2. A/F sensor
  3. A/F sensor heater
  4. EFI relay
  5. Open or short in A/F sensor heater and EFI relay circuit
  6. ECM
 Comes on DTC Stored
P2239  Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1)
  1. Open or short in A/F sensor circuit
  2. A/F sensor
  3. A/F sensor heater
  4. EFI relay
  5. Open or short in A/F sensor heater and EFI relay circuit
  6. ECM
 Comes on DTC Stored
P2252  Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1)
  1. Open or short in A/F sensor circuit
  2. A/F sensor
  3. A/F sensor heater
  4. EFI relay
  5. Open or short in A/F sensor heater and EFI relay circuit
  6. ECM
 Comes on DTC Stored
P2253  Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)
  1. Open or short in A/F sensor circuit
  2. A/F sensor
  3. A/F sensor heater
  4. EFI relay
  5. Open or short in A/F sensor heater and EFI relay circuit
  6. ECM
 Comes on DTC Stored
P2401  Evaporative Emission System Leak Detection Pump Control Circuit Low
  1. Pump module
  2. Connector/Wire harness (Pump module - ECM)
  3. ECM
 Comes on DTC Stored
P2402  Evaporative Emission System Leak Detection Pump Control Circuit High
  1. Pump module
  2. Connector/Wire harness (Pump module - ECM)
  3. ECM
 Comes on DTC Stored
P2419  Evaporative Emission System Switching Valve Control Circuit Low
  1. Pump module
  2. Connector/Wire harness (Pump module - ECM)
  3. ECM
 Comes on DTC Stored
P2420  Evaporative Emission System Switching Valve Control Circuit High
  1. Pump module
  2. Connector/Wire harness (Pump module - ECM)
  3. ECM
 Comes on DTC Stored
P2610  ECM / PCM Internal Engine Off Timer Performance ECM Comes on DTC Stored
P2A00  A/F Sensor Circuit Slow Response (Bank 1 Sensor 1)
  1. Open or short in A/F sensor circuit
  2. A/F sensor
  3. A/F sensor heater
  4. EFI relay
  5. Open or short in A/F sensor and EFI relay circuits
  6. Air induction system
  7. Fuel pressure
  8. Injector
  9. PCV hose connection
  10. ECM
 Comes on DTC Stored
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