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Diagnostic Trouble Code Chart

HINT:

The parameters listed in the chart are for reference only. Factors such as instrument type may cause readings to differ slightly from stated values.

If any DTCs are displayed during a check mode DTC check, check the circuit for the DTCs listed in the table below. For details of each DTC, refer to the step indicated.

SFI SYSTEM (for 4WD) 

SFI SYSTEM (4WD) DIAGNOSTIC TROUBLE CODE

DTC No. Detection Item Trouble Areas MIL Memory
P0010 Camshaft Position "A" Actuator Circuit (Bank 1)
  1. Open or short in Oil Control Valve (OCV) circuit
  2. OCV
  3. ECM
 Comes on DTC Stored
P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)
  1. Valve timing
  2. OCV
  3. OCV filter
  4. Camshaft timing gear assembly
  5. ECM
 Comes on DTC Stored
P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1) Same as DTC P0011 Comes on DTC Stored
P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
  1. Mechanical system (Timing chain has jumped tooth or chain stretched)
  2. ECM
 Comes on DTC Stored
P0031 Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 1)
  1. Open or short in Heated Oxygen (HO2) sensor heater circuit
  2. HO2 sensor heater
  3. EFI relay
  4. ECM
 Comes on DTC Stored
P0032 Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 1)
  1. Short in HO2 sensor heater circuit
  2. HO2 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 HO2 sensor heater circuit
  2. HO2 sensor heater
  3. EFI relay
  4. ECM
 Comes on DTC Stored
P0038 Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)
  1. Short in HO2 sensor heater circuit
  2. HO2 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 (MAF) meter circuit
  2. MAF meter
  3. ECM
 Comes on DTC Stored
P0101 Mass or Volume Air Flow Circuit Range / Performance Problem MAF meter Comes on DTC Stored
P0102 Mass or Volume Air Flow Circuit Low Input
  1. Open in MAF meter circuit
  2. MAF meter
  3. ECM
 Comes on DTC Stored
P0103 Mass or Volume Air Flow Circuit High Input
  1. Short in MAF meter circuit
  2. MAF meter
  3. ECM
 Comes on DTC Stored
P0110 Intake Air Temperature Circuit
  1. Open or short in Intake Air Temperature (IAT) sensor circuit
  2. IAT sensor (built into Mass Air Flow [MAF] meter)
  3. ECM
 Comes on DTC Stored
P0112 Intake Air Temperature Circuit Low Input
  1. Short in IAT sensor circuit
  2. IAT sensor (built into MAF meter)
  3. ECM
 Comes on DTC Stored
P0113 Intake Air Temperature Circuit High Input
  1. Open in IAT sensor circuit
  2. IAT sensor (built into MAF meter)
  3. ECM
 Comes on DTC Stored
P0115 Engine Coolant Temperature Circuit
  1. Open or short in Engine Coolant Temperature (ECT) sensor circuit
  2. ECT sensor
  3. ECM
 Comes on DTC Stored
P0116 Engine Coolant Temperature Circuit Range / Performance Problem ECT sensor Comes on DTC Stored
P0117 Engine Coolant Temperature Circuit Low Input
  1. Short in ECT sensor circuit
  2. ECT sensor
  3. ECM
 Comes on DTC Stored
P0118 Engine Coolant Temperature Circuit High Input
  1. Open in ECT sensor circuit
  2. ECT sensor
  3. ECM
 Comes on DTC Stored
P0120 Throttle / Pedal Position Sensor / Switch "A" Circuit
  1. Open or short in Throttle Position (TP) sensor circuit
  2. TP sensor
  3. ECM
 Comes on DTC Stored
P0121 Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem TP sensor Comes on DTC Stored
P0122 Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input
  1. TP sensor
  2. Short in VTA circuit
  3. Open in VC circuit
  4. ECM
 Comes on DTC Stored
P0123 Throttle / Pedal Position Sensor / Switch "A" Circuit High Input
  1. TP sensor
  2. Open in VTA circuit
  3. Open in E2 circuit
  4. Short between VC and VTA circuit
  5. ECM
 Comes on DTC Stored
P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control
  1. Cooling system
  2. ECT sensor
  3. Thermostat
 Comes on DTC Stored
P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
  1. Thermostat
  2. Cooling system
  3. ECT sensor
  4. ECM
 Comes on DTC Stored
P0130 Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 1)
  1. Open or short in Heated Oxygen (HO2) sensor (sensor 1) circuit
  2. HO2 sensor (sensor 1)
  3. HO2 sensor heater (sensor 1)
  4. EFI relay
  5. HO2 sensor heater and EFI relay circuits
  6. Air induction system
  7. Fuel pressure
  8. Injector
  9. ECM
 Comes on DTC Stored
P0133 Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1)
  1. Open or short in HO2 sensor (sensor 1) circuit
  2. HO2 sensor (sensor 1)
  3. HO2 sensor heater (sensor 1)
  4. EFI relay
  5. HO2 sensor heater and EFI relay circuits
  6. Air induction system
  7. Fuel pressure
  8. Injector
  9. ECM
 Comes on DTC Stored
P0134 Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
  1. Open or short in HO2 sensor (sensor 1) circuit
  2. HO2 sensor (sensor 1)
  3. HO2 sensor heater (sensor 1)
  4. EFI relay
  5. HO2 sensor heater and EFI relay circuits
  6. Air induction system
  7. Fuel pressure
  8. Injector
  9. Gas leakage from exhaust system
  10. PCV valve and hose
  11. PCV hose connections
  12. 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. EFI relay
  5. HO2 sensor heater and EFI relay circuits
 Comes on DTC Stored
P0138 Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)
  1. Short in HO2 sensor (sensor 2) circuit
  2. Short in HO2 sensor (sensor 2)
  3. ECM internal circuit malfunction
 Comes on DTC Stored
P0139 Oxygen Sensor Circuit Slow Response (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 (MAF) meter
  4. Engine Coolant Temperature (ECT) sensor
  5. Fuel pressure
  6. Gas leakage from exhaust system
  7. Open or short in HO2 sensor (sensor 1) circuit
  8. HO2 sensor (sensor 1)
  9. HO2 sensor heater (sensor 1)
  10. EFI relay
  11. HO2 sensor heater and EFI relay circuits
  12. PCV hose connections
  13. PCV valve and hose
  14. ECM
 Comes on DTC Stored
P0172 System Too Rich (Bank 1)
  1. Injector leakage or blockage
  2. Mass Air Flow (MAF) meter
  3. Engine Coolant Temperature (ECT) sensor
  4. Ignition system
  5. Fuel pressure
  6. Gas leakage from exhaust system
  7. Open or short in Heated Oxygen (HO2) sensor (sensor 1) circuit
  8. HO2 sensor (sensor 1)
  9. HO2 sensor heater (sensor 1)
  10. EFI relay
  11. HO2 sensor heater and EFI relay circuits
  12. ECM
 Comes on DTC Stored
P0300 Random / Multiple Cylinder Misfire Detected
  1. Open or short in engine wire harness
  2. Connector connections
  3. Vacuum hose connections
  4. Ignition system
  5. Injector
  6. Fuel pressure
  7. MAF meter
  8. ECT sensor
  9. Compression pressure
  10. Valve clearance
  11. Valve timing
  12. PCV hose connections
  13. PCV valve and hose
  14. ECM
 Comes on or flashes DTC Stored
P0301 Cylinder 1 Misfire Detected Same as DTC P0300 Comes on or flashes DTC Stored
P0302 Cylinder 2 Misfire Detected Same as DTC P0300 Comes on or flashes DTC Stored
P0303 Cylinder 3 Misfire Detected Same as DTC P0300 Comes on or flashes DTC Stored
P0304 Cylinder 4 Misfire Detected Same as DTC P0300 Comes on or flashes 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 (CKP) sensor circuit
  2. CKP sensor
  3. Sensor plate (CKP sensor plate No. 1)
  4. ECM
 Comes on DTC Stored
P0339 Crankshaft Position Sensor "A" Circuit Intermittent Same as DTC P0335 Does not come on DTC Stored
P0340 Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)
  1. Open or short in Camshaft Position (CMP) sensor circuit
  2. CMP sensor
  3. Camshaft
  4. Timing chain has jumped tooth
  5. ECM
 Comes on DTC Stored
P0341 Camshaft Position Sensor "A" Circuit Range / Performance (Bank 1 or Single Sensor) Same as DTC P0340 Comes on Comes on
P0351*1 Ignition Coil "A" Primary / Secondary Circuit
  1. Ignition system
  2. Open or short in IGF or IGT circuit (1 to 4) between ignition coil with igniter and ECM
  3. No. 1 to No. 4 ignition coil with igniters
  4. ECM
 Comes on DTC Stored
P0352*1 Ignition Coil "B" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC Stored
P0353*1 Ignition Coil "C" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC Stored
P0354*1 Ignition Coil "D" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC Stored
P0420 Catalyst System Efficiency Below Threshold (Bank 1)
  1. Gas leakage from exhaust system
  2. Heated Oxygen (HO2) sensors (sensor 1, 2)
  3. Three-Way Catalytic Converter (TWC)
 Comes on DTC Stored
P043E Evaporative Emission System Reference Orifice Clog Up Pump module Comes on DTC Stored
P043F Evaporative Emission System Reference Orifice High Flow Pump module Comes on DTC Stored
P0441 Evaporative Emission Control System Incorrect Purge Flow
  1. Fuel tank cap incorrectly installed
  2. Fuel tank cap cracked or damaged
  3. Vacuum hose cracked, holed, blocked, damaged or disconnected ((1), (2), (3), (4), (5), (6), (7), (8), (9), (10) and (11) in Fig. 1)
  4. Open or short in vapor pressure sensor circuit
  5. Vapor pressure sensor
  6. Open or short in VSV for EVAP circuit
  7. VSV for EVAP
  8. Open or short in VSV for CCV circuit
  9. VSV for CCV
  10. Open or short in VSV for pressure switching valve circuit
  11. VSV for pressure switching valve
  12. Fuel tank cracked, holed or damaged
  13. Charcoal canister cracked, holed or damaged
  14. Fuel tank over fill check valve cracked or damaged
  15. ECM
 Comes on DTC Stored
P0450 Evaporative Emission Control System Pressure Sensor / Switch Pump module (including pressure sensor) Comes on DTC Stored
P0451 Evaporative Emission Control System Pressure Sensor Range / Performance Pump module (including pressure sensor) Comes on DTC Stored
P0452 Evaporative Emission Control System Pressure Sensor / Switch Low Input
  1. Pump module (including pressure sensor)
  2. Connector/Wire harness (between pump module and ECM)
  3. ECM
 Comes on DTC Stored
P0453 Evaporative Emission Control System Pressure Sensor / Switch High Input
  1. Pump module (including pressure sensor)
  2. Connector/Wire harness (between pump module and 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 (between canister and fuel tank)
  3. Leakage from EVAP line (between purge valve and canister)
  4. Leakage from 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) Same as DTC P0455 Comes on DTC Stored
P0500 Vehicle Speed Sensor "A"
  1. Open or short in speed sensor circuit
  2. Speed sensor
  3. Combination meter
  4. ECM
  5. Skid control ECU
 Comes on DTC Stored
P0505 Idle Control System Malfunction
  1. Open or short in Idle Air Control (IAC) valve circuit
  2. IAC valve stuck or closed
  3. A/C switch circuit
  4. Air induction system
  5. PCV valve and hose
  6. ECM
 Comes on DTC Stored
P0511 Idle Air Control Circuit
  1. Open or short in IAC valve circuit
  2. IAC valve
  3. ECM
 Comes on DTC Stored
P0560 System Voltage
  1. Open in back up power source circuit
  2. EFI fuse
  3. ECM
 Comes on DTC Stored
P0606 ECM / PCM Processor ECM Comes on DTC Stored
P0617 Starter Relay Circuit High
  1. Park/Neutral Position (PNP) switch
  2. Starter relay circuit
  3. Ignition switch
  4. ECM
 Comes on DTC Stored
P0630 VIN not Programmed or Mismatch - ECM / PCM ECM Comes on DTC Stored
P2195 Oxygen Sensor Signal Stuck Lean (Bank 1 Sensor 1)
  1. Open or short in Heated Oxygen (HO2) sensor (sensor 1) circuit
  2. HO2 sensor (sensor 1)
  3. HO2 sensor heater (sensor 1)
  4. EFI relay
  5. HO2 sensor heater and EFI relay circuits
  6. Air induction system
  7. Fuel pressure
  8. Injector
  9. ECM
 Comes on DTC Stored
P2196 Oxygen Sensor Signal Stuck Rich (Bank 1 Sensor 1) Same as DTC P2195 Comes on DTC Stored
P2401 Evaporative Emission System Leak Detection Pump Control Circuit Low
  1. Pump module
  2. Connector/Wire harness (between pump module and ECM)
  3. ECM
 Comes on DTC Stored
P2402 Evaporative Emission System Leak Detection Pump Control Circuit High
  1. Pump module
  2. Connector/Wire harness (between pump module and ECM)
  3. ECM
 Comes on DTC Stored
P2419 Evaporative Emission System Switching Valve Control Circuit Low
  1. Pump module
  2. Connector/Wire harness (between pump module and ECM)
  3. ECM
 Comes on DTC Stored
P2420 Evaporative Emission System Switching Valve Control Circuit High
  1. Pump module
  2. Connector/Wire harness (between pump module and ECM)
  3. ECM
 Comes on DTC Stored
P2610 ECM / PCM Internal Engine Off Timer Performance ECM Comes on DTC Stored

HINT:

*1: Indicates a malfunction related to the primary circuit

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