When MIL is ON but the DTC of the engine is not memorized it may be because of HV control system abnormality so check HV control system beforehand Sae Controlled

DTC No.

Detection Item

Trouble Area

MIL*1

Memory

P0100 (DI-23)

Mass Air Flow Circuit Malfunction

• Open or short in mass air flow meter circuit

• ECM

O

O

P0101 (DI-27)

Mass Air Flow Circuit Range/ Performance Problem

• Mass air flow meter

O

O

P0110 (DI-28)

Intake Air Temp. Circuit Malfunction

• Open or short in intake air temp. sensor circuit

• Intake air temp. sensor (built into mass air flow meter)

• ECM

O

O

P0115 (DI-32)

Engine Coolant Temp. Circuit Malfunction

• Open or short in engine coolant temp. sensor circuit

• Engine coolant temp. sensor

• ECM

O

O

P0116 (DI-36)

Engine Coolant Temp. Circuit Range/Performance Problem

• Cooling system

• Engine coolant temp. sensor

O

O

P0120 (DI-38)

Throttle/Pedal Position Sensor/ Switch "A" Circuit Malfunction

• Open or short in throttle position sensor circuit

• Throttle position sensor

• ECM

O

O

P0121 (DI-44)

Throttle/Pedal Position Sensor/ Switch "A" Circuit Range/Performance Problem

• Throttle position sensor

• ECM

O

O

P0125 (DI-45)

Insufficient Coolant Temp. for Closed Loop Fuel Control

• Open or short in heated oxygen sensor (bank 1 sensor 1) circuit

• Heated oxygen sensor (bank 1 sensor 1)

• Air induction system

• Fuel pressure

• Gas leakage on exhaust system

• PCV piping

O

O

P0128 (DI-50)

Thermostat Malfunction

• Thermostat

• Cooling system

• Water temperature

• ECM

O

O

P0130 (DI-51)

Heated Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 1) (Except Calif.)

• Open or short in heated oxygen sensor circuit

• Heated oxygen sensor

• Air induction system

• Fuel pressure

• ECM

O

O

P0133 (DI-55)

Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1)

• Open or short in heated oxygen sensor circuit

• Heated oxygen sensor

• Air induction system

• Fuel pressure

• ECM

O

O

P0135 (DI-58)

Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

• Open or short in heater circuit of heated oxygen sensor

• Heated oxygen sensor heater

• ECM

O

O

P0136 (DI-60)

Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)

• Open or short in heated oxygen sensor circuit

• Heated oxygen sensor

O

O

P0141 (DI-58)

Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

• Same as DTC No. P0135

O

O

P0171 (DI-62)

System too Lean (Fuel Trim)

• Air induction system

• Injector blockage

• Engine coolant temp. sensor

• Fuel pressure

• Gas leakage on exhaust system

• Open or short in heated oxygen sensor (bank 1 sensor 1) circuit

• Heated oxygen sensor (bank 1 sensor 1)

• PCV piping

O

O

P0172 (DI-62)

System too Rich (Fuel Trim)

• Injector leak, blockage

• Engine coolant temp. sensor

• Ignition system

• Fuel pressure

• Gas leakage on exhaust system

• Open or short in heated oxygen sensor (bank 1, 2 sensor 1) circuit

• ECM

O

O

P0300 (DI-67)

Random/Multiple Cylinder Misfire Detected

• Open or short in engine wire

• Connector connection

• Vacuum hose connection

• Ignition system

• Fuel pressure

• Manifold absolute pressure sensor

• Engine coolant temp. sensor

• Compression pressure

• Valve clearance

• PCV piping

O

O

P0301 (DI-67)

Cylinder 1 Misfire Detected

P0302 (DI-67)

Cylinder 2 Misfire Detected

P0303 (DI-67)

Cylinder 3 Misfire Detected

P0304 (DI-67)

Cylinder 4 Misfire Detected

P0325 (DI-73)

Knock Sensor 1 Circuit Malfunction (Bank 1)

• Open or short in knock sensor 1 circuit

• Knock sensor 1 (looseness)

• ECM

O

O

P0335 (DI-76)

Crankshaft Position Sensor "A" Circuit Malfunction

• Open or short in crankshaft position sensor circuit

• Crankshaft position sensor

• Signal plate (Timing belt guide)

• Crankshaft timing pulley

• ECM

O

O

P0340 (DI-78)

Camshaft Position Sensor Circuit Malfunction

• Open or short in camshaft position sensor circuit

• Camshaft position sensor

• Camshaft timing pulley

• ECM

o

o

P0420 (DI-80)

Catalyst System Efficiency Below Threshold (Bank 1)

• Gas leakage on exhaust system

• Open or short in heated oxygen sensor circuit

• Heated oxygen sensor

• Three-way catalytic converter

o

o

P0440 (DI-83)

Evaporative Emission Control System Malfunction

• Hose or tube cracked, hole, damaged or loose seal

• Fuel tank cap incorrectly installed

• Fuel tank cap cracked or damaged

• Vacuum hose cracked, hole, blocked,damaged or disconnected

• Fuel tank cracked, hole or damaged

• Charcoal canister cracked, hole or damaged

• Open or short in vapor pressure sensor circuit

• Vapor pressure sensor

• Fuel tank over fill check valve cracked or damaged

• ECM

o

o

P0441 (DI-89)

Evaporative Emission Control System Incorrect Purge Flow

• Vacuum hose cracked, hole, blocked damaged or disconnected

• Open or short in vapor pressure sensor circuit

• Vapor pressure sensor

• Open or short in VSV circuit for EVAP

• Open or short in VSV circuit for vapor pressure sensor

• VSV for vapor pressure sensor

• Charcoal canister cracked, hole or damaged

• Fuel tank over fill check valve cracked or damaged

• ECM

o

o

P0446 (DI-89)

Evaporative Emission Control System Vent Control Malfunction

P0450 (DI-106)

Evaporative Emission Control System Pressure Sensor Malfunction

• Open or short in vapor pressure sensor circuit

• Vapor pressure sensor

• ECM

o

o

P0451 (DI-106)

Evaporative Emission Control System Pressure Sensor Range/ Performance

P0500 (DI-108)

Vehicle Speed Sensor Malfunction

• Combination meter

• Open or short in vehicle speed sensor circuit

• Vehicle speed sensor

• ECM

o

o

P0505 (DI-110)

Idle Control System Malfunction

• Erectric throttle control system

• Air induction system

• PCV piping

o

o

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