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Diagnostic Trouble Code Chart

HINT:

Parameters listed in the chart may not be exactly the same as your readings due to the type of instrument or other factors. If a DTC is displayed, check the trouble area for the DTC listed in the table below. For details of each DTC.

DIAGNOSTIC TROUBLE CODE CHART

DTC Code Detection Item Trouble Area MIL Memory
P0010  Camshaft Position "A" Actuator Circuit (Bank 1)
  • Open or short in Oil Control Valve (OCV) circuit
  • OCV
  • ECM
 Comes on DTC stored
P0011  Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)
  • Valve timing
  • Oil Control Valve (OCV)
  • OCV filter
  • Camshaft timing gear assembly
  • 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)
  • Mechanical system (Timing chain has jumped tooth or chain stretched)
  • ECM
 Comes on DTC stored
P0031  Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)
  • Open in Air-Fuel Ratio (A/F) sensor heater circuit
  • A/F sensor heater
  • A/F HEATER relay
  • ECM
 Comes on DTC stored
P0032  Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
  • Short in Air-Fuel Ratio (A/F) sensor heater circuit
  • A/F sensor heater - A/F HEATER relay
  • ECM
 Comes on DTC stored
P0037  Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2)
  • Open or short in Heated Oxygen (HO2) sensor heater circuit
  • HO2 sensor heater
  • EFI relay
  • ECM
 Comes on DTC stored
P0038  Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)
  • Open or short in Heated Oxygen (HO2) sensor heater circuit
  • HO2 sensor heater
  • EFI relay
  • ECM
 Comes on DTC stored
P0100  Mass or Volume Air Flow Circuit
  • Open or short in Mass Air Flow (MAF) meter circuit - MAF meter
  • ECM
 Comes on DTC stored
P0101  Mass Air Flow Circuit Range / Performance Problem
  • Mass Air Flow (MAF)meter
  • Air induction system - PCV hose connections
 Comes on DTC stored
P0102  Mass or Volume Air Flow Circuit Low Input
  • Open or short in Mass Air Flow (MAF) meter circuit
  • MAF meter
  • ECM
 Comes on DTC stored
P0103  Mass or Volume Air Flow Circuit High Input
  • Open or short in Mass Air Flow (MAF) meter circuit
  • MAF meter
  • ECM
 Comes on DTC stored
P0110  Intake Air Temperature Circuit
  • Open or short in Intake Air Temperature (IAT) sensor circuit
  • IAT sensor (built into MAF meter)
  • ECM
 Comes on DTC stored
P0111  Intake Air Temperature Sensor Gradient Too High
  • Mass air flow meter
 Comes on DTC stored
P0112  Intake Air Temperature Circuit Low Input
  • Short in Intake Air Temperature (IAT) sensor circuit
  • IAT sensor (built into MAF meter)
  • ECM
 Comes on DTC stored
P0113  Intake Air Temperature Circuit High Input
  • Open in Intake Air Temperature (IAT) sensor circuit
  • IAT sensor (built into MAF meter)
  • ECM
 Comes on DTC stored
P0115  Engine Coolant Temperature Circuit
  • Open or short in Engine Coolant Temperature (ECT) sensor circuit
  • ECT sensor
  • ECM
 Comes on DTC Stored
P0116  Engine Coolant Temperature Circuit Range / Performance Problem
  • Thermostat
  • Engine Coolant Temperature (ECT) sensor
 Comes on DTC stored
P0117  Engine Coolant Temperature Circuit Low Input
  • Short in Engine Coolant Temperature (ECT) sensor circuit
  • ECT sensor
  • ECM
 Comes on DTC stored
P0118  Engine Coolant Temperature Circuit High Input
  • Open in Engine Coolant Temperature (ECT) sensor circuit
  • ECT sensor
  • ECM
 Comes on DTC stored
P0120  Throttle / Pedal Position Sensor / Switch "A" Circuit
  • Throttle Position (TP) sensor (built into throttle body)
  • ECM
 Comes on DTC stored
P0121  Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem
  • Throttle Position (TP) sensor (built into throttle body)
 Comes on DTC stored
P0122  Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input
  • Throttle Position (TP) sensor (built into throttle body)
  • Short in VTA1 circuit
  • Open in VC circuit
  • ECM
 Comes on DTC stored
P0123  Throttle / Pedal Position Sensor / Switch "A" Circuit High Input
  • Throttle Position (TP) sensor (built into throttle body)
  • Open in VTA1 circuit
  • Open in E2 circuit
  • Short between VC and VTA1 circuits
  • ECM
 Comes on DTC stored
P0125  Insufficient Coolant Temperature for Closed Loop Fuel Control
  • Cooling system
  • Engine coolant temperature sensor
  • Thermostat
 Comes on DTC stored
P0128  Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
  • Thermostat
  • Cooling system
  • Engine coolant temperature sensor
  • ECM
 Comes on DTC stored
P0136  Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
  • Open or short in Heated Oxygen (HO2) sensor (sensor 2) circuit
  • HO2 sensor (sensor 2)
  • HO2 sensor heater (sensor 2)
  • Air-Fuel Ratio (A/F) sensor(sensor 1)
  • EFI relay
  • Gas leakage from exhaust system
 Comes on DTC stored
P0137  Heated Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2)
  • Open in Heated Oxygen (HO2) sensor (sensor 2) circuit
  • HO2 sensor (sensor 2)
  • HO2 sensor heater (sensor 2)
  • EFI relay
  • Gas leakage from exhaust system
 Comes on DTC stored
P0138  Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)
  • Short in Heated Oxygen (HO2) sensor(sensor 2) circuit
  • HO2 sensor (sensor 2)
  • ECM internal circuit malfunction
 Comes on DTC stored
P0141  Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
  • Open or short in HO2 sensor heater circuit
  • HO2 sensor heater
  • EFI relay
  • ECM
 Comes on DTC stored
P0171  System Too Lean (Bank 1)
  • Air induction system
  • Injector blockage
  • Mass Air Flow (MAF) meter
  • Engine Coolant Temperature (ECT) sensor
  • Fuel pressure
  • Gas leakage from exhaust system
  • Open or short in Air-Fuel Ratio (A/F) sensor(sensor 1) circuit
  • A/F sensor (sensor 1)
  • A/F sensor heater (sensor 1) -A/F HEATER relay
  • A/F sensor heater and A/F HEATER relay circuits
  • PCV valve and hose
  • PCV hose connections
  • ECM
 Comes on DTC stored
P0172  System Too Rich (Bank 1)
  • Injector leakage or blockage
  • Mass Air Flow (MAF) meter
  • Engine Coolant Temperature (ECT) sensor
  • Ignition system
  • Fuel pressure
  • Gas leakage from exhaust system
  • Open or short in Air-Fuel Ratio (A/F) sensor(sensor 1) circuit
  • A/F sensor (sensor 1)
  • A/F sensor heater (sensor 1)
  • A/F HEATER relay
  • A/F sensor heater and A/F HEATER relay circuits
  • ECM
 Comes on DTC stored
P0220  Throttle / Pedal Position Sensor / Switch "B" Circuit
  • Throttle Position (TP) sensor (built into throttle body)
  • ECM
 Comes on DTC stored
P0222  Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input
  • Throttle Position (TP) sensor (built into throttle body)
  • Short in VTA2 circuit
  • Open in VC circuit
  • ECM
 Comes on DTC stored
P0223  Throttle / Pedal Position Sensor / Switch "B" Circuit High Input
  • Throttle Position (TP) sensor (built into throttle body)
  • Open in VTA2 circuit
  • Open in E2 circuit
  • Short between VC and VTA2 circuits
  • ECM
 Comes on DTC stored
P0300  Random / Multiple Cylinder Misfire Detected
  • Open or short in engine wire harness
  • Connector connection
  • Vacuum hose connections
  • Ignition system
  • Injector
  • Fuel pressure
  • Mass Air Flow (MAF) meter
  • Air induction system
  • Engine Coolant Temperature (ECT) sensor
  • Compression pressure
  • Valve clearance
  • Valve timing
  • PCV valve and hose
  • PCV hose connections
  • ECM
 Comes on/Blinks(1) DTC stored
P0301  Cylinder 1 Misfire Detected
  • Same as P0300
 Comes on/Blinks(1) DTC stored
P0302  Cylinder 2 Misfire Detected
  • Same as P0300
 Comes on/Blinks(1) DTC stored
P0303  Cylinder 3 Misfire Detected
  • Same as P0300
 Comes on/Blinks(1) DTC stored
P0304  Cylinder 4 Misfire Detected
  • Same as P0300
 Comes on/Blinks(1) DTC stored
P0327  Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
  • Short in knock sensor circuit
  • Knock sensor
  • ECM
 Comes on DTC stored
P0328  Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
  • Open in knock sensor circuit
  • Knock sensor
  • ECM
 Comes on DTC stored
P0335  Crankshaft Position Sensor "A" Circuit
  • Open or short in Crankshaft Position (CKP) sensor circuit
  • CKP sensor
  • Sensor plate (CKP sensor plate)
  • ECM
 Comes on DTC stored
P0339  Crankshaft Position Sensor "A" Circuit Intermittent
  • Same as P0335
 - DTC stored
P0340  Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)
  • Open or short in Camshaft Position (CMP) sensor circuit
  • CMP sensor
  • Camshaft
  • Jumped tooth of timing chain
  • ECM
 Comes on DTC stored
P0351  Ignition Coil "A" Primary / Secondary Circuit
  • Ignition system
  • Open or short in IGF1 or IGT circuit (1 to 4) between ignition coil with igniter and ECM
  • No. 1 to No. 4 ignition coils with igniters
  • ECM
 Comes on DTC stored
P0352  Ignition Coil "B" Primary / Secondary Circuit
  • Same as DTC P0351
 Comes on DTC stored
P0353  Ignition Coil "C" Primary / Secondary Circuit
  • Same as DTC P0351
 Comes on DTC stored
P0354  Ignition Coil "D" Primary / Secondary Circuit
  • Same as DTC P0351
 Comes on DTC stored
P0412  Secondary Air Injection System Switching Valve "A" Circuit
  • Open in Air Switching Valve (ASV) drive circuit
  • Short between ASV drive circuit and +B circuit
  • Short between ASV drive circuit and body ground
  • Air Injection Control Driver (AID) -ASV
  • ECM
 Comes on DTC stored
P0418  Secondary Air Injection System Control "A" Circuit
  • Open in air pump drive circuit
  • Short between air pump drive circuit and +B circuit
  • Short between air pump drive circuit and body ground
  • Air pump
  • Air Injection Control Driver (AID)
  • ECM
 Comes on DTC stored
P0420  Catalyst System Efficiency Below Threshold (Bank 1)
  • Front exhaust pipe (TWC)
  • Gas leakage from exhaust system
  • Air-Fuel Ratio (A/F) sensor (sensor 1)
  • Heated Oxygen (HO2) sensor (sensor 2)
 Comes on DTC stored
P043E  Evaporative Emission System Reference Orifice Clog Up
  • Canister pump module
  • Connector/Wire harness (Canister pump module - ECM)
  • ECM
  • Leakage from EVAP system
 Comes on DTC stored
P043F  Evaporative Emission System Reference Orifice High Flow
  • Canister pump module
  • Connector/Wire harness (Canister pump module - ECM)
  • ECM
  • Leakage from EVAP system
 Comes on DTC stored
P0441  Evaporative Emission Control System Incorrect Purge Flow
  • Purge VSV
  • Connector/wire harness (Purge VSV - ECM)
  • Canister pump module
  • Leakage from EVAP line (Purge VSV - Intake manifold)
  • Leakage from EVAP system
  • ECM
 Comes on DTC stored
P0450  Evaporative Emission Control System Pressure Sensor / Switch
  • Canister pump module
  • ECM
 Comes on DTC stored
P0451  Evaporative Emission Control System Pressure Sensor Range / Performance
  • Canister pump module
  • Connector/Wire harness (Canister pump module - ECM)
  • ECM
 Comes on DTC stored
P0452  Evaporative Emission Control System Pressure Sensor / Switch Low Input
  • Canister pump module
  • Connector/Wire harness (Canister pump module - ECM)
  • ECM
 Comes on DTC stored
P0453  Evaporative Emission Control System Pressure Sensor / Switch High Input
  • Canister pump module
  • Connector/Wire harness (Canister pump module - ECM)
  • ECM
 Comes on DTC stored-
P0455  Evaporative Emission Control System Leak Detected (Gross Leak)
  • Fuel tank cap (loose)
  • Leakage from EVAP line (Canister - Fuel tank)
  • Leakage from EVAP line (Purge VSV-Canister)
  • Canister pump module
  • Leakage from fuel tank
  • 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"
  • Open or short in speed signal circuit
  • Combination meter
  • ECM
  • Skid control ECU
 Comes on DTC stored
P0503  Vehicle Speed Sensor "A" Intermittent / Erratic / High
  • Open or short in speed signal circuit
  • Combination meter
  • ECM
  • Skid control ECU
 - DTC stored
P0504  Brake Switch "A"/"B" Correlation
  • Short in stop light switch signal circuit
  • STOP fuse
  • Stop light switch
  • ECM
 - DTC stored
P0505  Idle Control System Malfunction
  • Electronic Throttle Control System (ETCS)
  • Air induction system
  • PCV hose connection
  • ECM
 Comes on DTC stored
P050A  Cold Start Idle Air Control System Performance
  • Throttle body
  • Mass air flow meter
  • PCV hose
  • Air cleaner filter
  • Air induction system
  • VVT system
  • ECM
 Comes on DTC stored
P0560  System Voltage
  • Open in back up power source circuit
  • EFI fuse
  • ECM
 Comes on DTC stored
P0604  Random Access Memory (RAM)
  • ECM
 Comes on DTC stored
P0606  ECM/PCM Processor
  • Exhaust gas leak
  • HO2 sensor
  • ECM
 Comes on DTC stored
P0607  Control Module Performance
  • ECM
 Comes on DTC stored
P0617  Starter Relay Circuit High
  • Park/Neutral Position (PNP) switch (for A/T)
  • Clutch start switch (for M/T)
  • Starter relay circuit
  • Ignition switch
  • 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
P1500  AC Inverter Malfunction
  • Open in speed signal circuit
  • Short between idle-up signal circuit and +B circuit
  • Voltage inverter
  • ECM
 Comes on DTC stored
P1613  Secondary Air Injection Driver Malfunction
  • Air Injection Control Driver (AID)
  • Open in AID ground circuit
  • Short in diagnostic information signal circuit (AID - ECM)
  • Open or short in air pump or air switching valve command signal circuit (AID - ECM)
  • Open or short in AID power source circuit
  • Open in diagnostic information signal circuit (AID - ECM)
  • AID
  • ECM
 Comes on DTC stored
P2102  Throttle Actuator Control Motor Circuit Low
  • Open in throttle actuator circuit
  • Throttle actuator
  • ECM
 Comes on DTC stored
P2103  Throttle Actuator Control Motor Circuit High
  • Short in throttle actuator circuit
  • Throttle actuator
  • Throttle valve
  • Throttle body assembly
  • ECM
 Comes on DTC stored
P2111  Throttle Actuator Control System - Stuck Open
  • Throttle actuator
  • Throttle body assembly
  • Throttle valve
 Comes on DTC stored
P2112  Throttle Actuator Control System - Stuck Closed
  • Throttle actuator
  • Throttle body assembly
  • Throttle valve
 Comes on DTC stored
P2118  Throttle Actuator Control Motor Current Range / Performance
  • Open in Electronic Throttle Control System (ETCS) power source circuit
  • ETCS fuse
  • ECM
 Comes on DTC stored
P2119  Throttle Actuator Control Throttle Body Range / Performance
  • Electronic Throttle Control System (ETCS)
  • ECM
 Comes on DTC stored
P2120  Throttle / Pedal Position Sensor / Switch "D" Circuit
  • Accelerator pedal position sensor
  • ECM
 Comes on DTC stored
P2121  Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
  • Accelerator pedal position sensor circuit
  • Accelerator pedal position sensor
  • ECM
 Comes on DTC stored
P2122  Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input
  • Accelerator pedal position sensor
  • Open in VCP1 circuit
  • Open or ground short in VPA circuit
  • ECM
 Comes on DTC stored
P2123  Throttle / Pedal Position Sensor/ Switch "D" Circuit High Input
  • Accelerator pedal position sensor
  • Open in EPA1 circuit
  • ECM
 Comes on DTC stored
P2125  Throttle / Pedal Position Sensor / Switch "E" Circuit
  • Accelerator pedal position sensor
  • ECM
 Comes on DTC stored
P2127  Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input
  • Accelerator pedal position sensor
  • Open in VCP2 circuit
  • Open or ground short in VPA2 circuit
  • ECM
 Comes on DTC stored
P2128  Throttle / Pedal Position Sensor / Switch "E" Circuit High Input
  • Accelerator pedal position sensor
  • Open in EPA2 circuit
  • ECM
 Comes on DTC stored
P2135  Throttle/ Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
  • Short between VTA1 and VTA2 circuits
  • TP sensor (built into throttle body)
  • ECM
 Comes on DTC stored
P2138  Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
  • Short between VPA and VPA2 circuits
  • Accelerator pedal position sensor
  • ECM
 Comes on DTC stored
P2195  Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1)
  • Open or short in Air-Fuel Ratio (A/F) sensor(sensor 1) circuit
  • A/F sensor (sensor 1)
  • A/F sensor (sensor 1) heater
  • A/F HEATER relay
  • A/F sensor heater and relay circuits
  • Air induction system
  • Fuel pressure
  • Injector
  • ECM
 Comes on DTC stored
P2196  Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1)
  • Open or short in Air-Fuel Ratio (A/F) sensor(sensor 1) circuit
  • A/F sensor (sensor 1)
  • A/F sensor (sensor 1) heater
  • A/F HEATER relay
  • A/F sensor heater and relay circuits
  • Air induction system
  • Fuel pressure
  • Injector
  • ECM
 Comes on DTC stored
P2237  Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1)
  • Open or short in A/F sensor circuit
  • A/F sensor
  • ECM
 Comes on DTC stored
P2238  Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1)
  • Open or short in Air-Fuel Ratio (A/F) sensor (sensor 1) circuit
  • A/F sensor (sensor 1)
  • A/F sensor heater
  • A/F HEATER relay
  • A/F sensor heater and relay circuits
  • ECM
 Comes on DTC stored
P2239  Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1)
  • Same as DTC P2238
 Comes on DTC stored
P2252  Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1)
  • Same as DTC P2238
 Comes on DTC stored
P2253  Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)
  • Same as DTC P2238
 Comes on DTC stored
P2401  Evaporative Emission Leak Detection Pump Stuck OFF
  • Canister pump module
  • Connector/Wire harness (Canister pump module - ECM)
  • ECM
  • Leakage from EVAP system
 Comes on DTC stored
P2402  Evaporative Emission Leak Detection Pump Stuck ON
  • Canister pump module
  • Connector/Wire harness (Canister pump module - ECM)
  • ECM
 Comes on DTC stored
P2419  Evaporative Emission System Switching Valve Control Circuit Low
  • Canister pump module
  • Connector/Wire harness (Canister pump module - ECM)
  • ECM
 Comes on DTC stored
P2420  Evaporative Emission System Switching Valve Control Circuit High
  • Canister pump module
  • Connector/Wire harness (Canister pump module - ECM)
  • ECM
  • Leakage from EVAP system
 Comes on DTC stored
P2430  Secondary Air Injection System Air Flow / Pressure Sensor Circuit Bank 1
  • Pressure sensor
  • Open or short in pressure sensor circuit
  • ECM
 Comes on DTC stored
P2431  Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance Bank 1
  • Pressure sensor
  • Open or short in pressure sensor circuit
  • ECM
 Comes on DTC stored
P2432  Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low Bank 1
  • Pressure sensor
  • Open or short in pressure sensor circuit
  • ECM
 Comes on DTC stored
P2433  Secondary Air Injection System Air Flow / Pressure Sensor Circuit High Bank 1
  • Pressure sensor
  • Open or short in pressure sensor circuit
  • ECM
 Comes on DTC stored
P2440  Secondary Air Injection System Switching Valve Stuck Open Bank 1
  • Air switching valve (ASV)
  • Open or short in ASV circuit
  • Pressure sensor
  • Pressure sensor circuit
  • Air Injection Control Driver (AID)
  • ECM
 Comes on DTC stored
P2441  Secondary Air Injection System Switching Valve Stuck Close Bank 1
  • Air switching valve (ASV)
  • Open or short in ASV circuit
  • Vacuum hose (ASV
  • pressure sensor)
  • Air injection hose
  • Pressure sensor
  • Pressure sensor circuit
  • Air Injection Control Driver (AID)
  • ECM
 Comes on DTC stored
P2444  Secondary Air Injection System Pump Stuck On Bank 1
  • Short in air pump circuit
  • Air pump
  • Open or short in pressure sensor circuit
  • Pressure sensor
  • Air Injection Control Driver (AID)
  • ECM
 Comes on DTC stored
P2445  Secondary Air Injection System Pump Stuck Off Bank 1
  • Air pump
  • Open in air pump circuit
  • Air injection system piping
  • Vacuum hose
  • Pressure sensor
  • Open or short in pressure sensor circuit
  • Air Injection Control Driver (AID)
  • 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)
  • Open or short in air-fuel ratio sensor circuit
  • Air-Fuel Ratio (A/F) sensor
  • ECM
 Comes on DTC stored
(1) MIL flashes when a catalyst damaged misfire is detected.
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