Engine Performance DTCS

ENGINE PERFORMANCE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC	Detecting item	Detecting condition (DTC will set when detecting:)
P0031	HO2S Heater Control Circuit Low (Bank-1 Sensor-1)	Heater control circuit voltage of A/F sensor is lower than specification for more than specified time even though control duty ratio of A/F sensor heater is less than 90% with engine running. (Heater control duty pulse is not detected in its circuit of ECM)
P0032	HO2S Heater Control Circuit High (Bank-1 Sensor-1)	Heater control circuit voltage of A/F sensor is higher than specification for more than specified time even though control duty ratio of A/F sensor heater is more than 10% with engine running. (Heater control duty pulse is not detected in its circuit of ECM)
P0037	HO2S Heater Control Circuit Low (Bank-1 Sensor-2)	HO2S circuit voltage is lower than specification for specified time even though control duty ratio of HO2S heater is less than 75% with engine running. (Heater control duty pulse is not detected in its monitor signal)
P0038	HO2S Heater Control Circuit High (Bank-1 Sensor-2)	HO2S circuit voltage is higher than specification for specified time even though control duty ratio of HO2S heater is more than 25% with engine running. (Heater control duty pulse is not detected in its monitor signal)
P0101	Mass or Volume Air Flow Circuit Range / Performance	MAF sensor signal is higher or lower than estimated range based on engine speed and throttle angle for 7 sec.
P0102	Mass or Volume Air Flow Circuit Low Input	Output voltage of MAF sensor is lower than 0.15 V for 5 sec.
P0103	Mass or Volume Air Flow Circuit High Input	Output voltage of MAF sensor is higher than 4.85 V for 5 sec.
P0111	Intake Air Temperature Sensor 1 Circuit Range / Performance	Variation of IAT sensor signal is less than 15 mV for 10 minutes even though ECT reaches 70 °C (158 °F) after engine is started with ECT less than 30 °C (86 °F).
P0112	Intake Air Temperature Sensor 1 Circuit Low	Circuit voltage of IAT sensor is lower than 0.15 V for 5 sec.
P0113	Intake Air Temperature Sensor 1 Circuit High	Circuit voltage of IAT sensor is higher than 4.85 V for 5 sec.
P0116	Engine Coolant Temperature Circuit Range / Performance	Variation of ECT sensor input voltage is less than 15 mV for specified time (in accordance with ECT at the time of starting) Variation of ECT sensor input voltage is less than 15 mV even though variation of IAT is more than 2.5 °C (36.5 °F) and vehicle has been driven for 12min. or more.
P0117	Engine Coolant Temperature Circuit Low	Circuit voltage of ECT sensor is lower than 0.15 V for 5 sec.
P0118	Engine Coolant Temperature Circuit High	Circuit voltage of ECT sensor is higher than 4.85 V for 5 sec.
P0122	Throttle / Pedal Position Sensor / Switch "A" (Main) Circuit Low	Output voltage of TP sensor (main) is lower than 0.3 V.
P0123	Throttle / Pedal Position Sensor / Switch "A" (Main) Circuit High	Output voltage of TP sensor (main) is higher than 4.6 V.
P0125	Insufficient Coolant Temperature for Closed Loop Fuel Control	ECT is lower than 10 °C (50 °F) for specified time (in accordance with ECT at the time of starting) after starting engine.
P0128	Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)	Measured ECT is lower than 76 °C (167 °F) even though estimated ECT on the basis of engine heat (calculated from MAF, INJECTION VOLUME, etc.) has reached 87 °C (189 °F).
P0131	O2 Sensor (HO2S) Circuit Low Voltage (Bank-1 Sensor-1)	A/F sensor terminal voltage is lower than 1.8 V or A/F sensor output current is higher than 5 mA for 5 sec. with engine running.
P0132	O2 Sensor (HO2S) Circuit High Voltage (Bank-1 Sensor-1)	A/F sensor terminal voltage is higher than 3.8 V or A/F sensor output current is lower than -5 mA for 5 sec. with engine running.
P0133	O2 Sensor (HO2S) Circuit Slow Response (Bank-1 Sensor-1)	Ratio between integrated value of A/F sensor output variation and integrated value of short term fuel trim variation is more than specification while vehicle is running.
P0134	O2 Sensor (HO2S) No Activity Detected (Bank-1 Sensor-1)	Impedance of A/F sensor element is higher than 50 Ω for 10 sec. even though A/F sensor heater is turned ON for specified time with engine running.
P0137	O2 Sensor (HO2S) Circuit Low Voltage (Bank-1 Sensor-2)	Circuit voltage of HO2S is lower than 20 mV for 5 sec. 5 times with engine running except for fuel cut condition.
P0138	O2 Sensor (HO2S) Circuit High Voltage (Bank-1 Sensor-2)	Circuit voltage of HO2S is higher than 1.2 V for 5 sec. even though HO2S heater is turned ON for specified time with engine running.
P0139	O2 Sensor Circuit Slow Response (Bank-1 Sensor-2)	Shift time which HO2S voltage change 0.6 V to 0.3 V is more than 1.0 sec. at fuel cut.
P0171	Fuel System Too Lean	Total fuel trim (short term fuel trim + long term fuel trim) is higher than specified range for 10 sec. 3 times.
P0172	Fuel System Too Rich	Total fuel trim (short term fuel trim + long term fuel trim) is lower than specified range for 10 sec. 3 times.
P0222	Throttle / Pedal Position Sensor / Switch "B" Circuit Low	Output voltage of TP sensor (sub) is lower than 0.74 V.
P0223	Throttle / Pedal Position Sensor / Switch "B" Circuit High	Output voltage of TP sensor (sub) is higher than 4.74 V.
P0300	Random / Multiple Cylinder Misfire Detected	Misfire, which causes catalyst to overheat during 200 engine revolutions, is detected at 2 or more cylinders. (MIL blinks as long as this misfire occurs continuously.) Misfire, which affects exhaust emission adversely during 1000 engine revolution, is detected at 2 or more cylinders.
P0301 / P0302 / P0303 / P0304	Cylinder 1,2,3,4 Misfire Detected	Misfire, which causes catalyst to overheat during 200 engine revolutions, is detected at 1 cylinder. (MIL blinks as long as this misfire occurs continuously.) Misfire, which affects exhaust emission adversely during 1000 engine revolution, is detected at 1 cylinder.
P0327	Knock Sensor 1 Circuit Low	Output voltage of knock sensor is lower than 1.23 V for 5 sec.
P0328	Knock Sensor 1 Circuit High	Output voltage of knock sensor is higher than 3.91 V for 5 sec.
P0335	Crankshaft Position (CKP) Sensor "A" Circuit	CKP sensor signal is not detected for 2 sec. even though starter is operated.
P0340	Camshaft Position (CMP) Sensor "A" Circuit	If either of the following condition is fulfilled: CMP sensor pulse is lower than 20 pulses per crankshaft 8 revolutions. CMP sensor pulse is higher than 28 pulses per crankshaft 8 revolutions. CMP sensor pulse is lower than 20 pulses per crankshaft 8 revolutions from engine start.
P0420	Catalyst System Efficiency below Threshold	Ratio of integrated value of HO2S output variation per integrated value of A/F sensor output variation is more than specification while vehicle is running after warmed up.
P0441	Evaporative Emission System Incorrect Purge Flow	Step 1: Variation of fuel tank pressure is less than 0.126 kPa when EVAP canister purge valve is operated from ON to OFF. Step 2: Variation of fuel tank pressure is less than 1.26 kPa when EVAP vent valve is closed forced and EVAP canister purge valve is ON.
P0443	Evaporative Emission System Purge Control Valve Circuit	Monitor signal of EVAP canister purge valve is not varied for 5 sec. even though EVAP canister purge valve control duty is between 10% and 90%. Monitor signal of EVAP canister purge valve is lower than 6 V for 5 sec. even though EVAP canister purge valve control duty is 0%.
P0449	Evaporative Emission System Vent Valve / Solenoid Circuit	Monitor signal of EVAP vent valve is lower than 6 V for 5 sec. even though EVAP vent valve is closed (ON).
P0456	Evaporative Emission System Leak Detected (Very Small Leak)	Leak detecting pressure of EVAP leak check pressure is higher than reference pressure-2 of EVAP leak check pressure.
P0461	Fuel Level Sensor "A" Circuit Performance	Fuel amount variation calculated from fuel level sensor output is less than 3.7 L (0.98 / 0.81 gal US/Imp.) even though accumulated MAF volume is more than specification.
P0462	Fuel Level Sensor "A" Circuit Low	Circuit voltage of fuel level sensor is lower than 0.16 V for 5 sec. with engine running.
P0463	Fuel Level Sensor "A" Circuit High	Circuit voltage of fuel level sensor is lower than 4.72 V for more than 5 sec. with engine running.
P0480	Fan 1 Control Circuit	Monitor signal of radiator cooling fan relay No.1 is lower than 6 V for 5 sec. even though radiator cooling fan relay No.1 is OFF.
P0481	Fan 2 Control Circuit	Monitor signal of radiator cooling fan relay No. 2 and No.3 is lower than 6 V for 5 sec. even though radiator cooling fan relay No.1 is ON and radiator cooling fan relay No.2 and No.3 are OFF.
P0482	Fan 3 Control Circuit	Monitor signal of A/C condenser cooling fan relay is lower than 6 V for 5 sec. even though A/C switch is ON and A/C condenser fan is OFF.
P0500	Vehicle Speed Sensor "A" (VSS)	Vehicle speed signal is lower than 2 km/h (1.2 mph) for 4 sec. while fuel shuts off at deceleration below 3,600 RPM. Vehicle speed signal is lower than 2 km/h (1.2 mph) for 4 sec. even though engine is running at D-Range with more than 3,600 RPM (A/T model).
P0504	Brake Switch "A"/"B" Correlation	If either of the following condition is fulfilled: Brake pedal switch signal (ON) and brake light switch signal (ON) are detected at a time. Brake pedal switch signal (OFF) and brake light switch signal (OFF) are detected at a time.
P0506	Idle Air Control System RPM Lower than Expected	Engine idle speed is lower than target idle speed by 100 RPM or more for 15 sec. 3 times even though IAC is feed back mode.
P0507	Idle Air Control System RPM Higher than Expected	Engine idle speed is higher than target idle speed by 200 RPM or more for 15 sec. 3 times even though IAC is feed back mode.
P0532	A/C Refrigerant Pressure Sensor "A" Circuit Low	Output voltage of A/C refrigerant pressure sensor is lower than 0.2 V for 5 sec.
P0533	A/C Refrigerant Pressure Sensor "A" Circuit High	Output voltage of A/C refrigerant pressure sensor is higher than 4.93 V for 5 sec.
P0601	Internal Control Module Memory Check Sum Error	Data write error or check sum error.
P0602	Control Module Programming Error	Data programming error
P0607	Control Module Performance	ECM internal processor error.
P0616	Starter Relay Circuit Low	Starter switch signal is not detected even though engine speed is 500 RPM or more.
P0617	Starter Relay Circuit High	Starter switch signal is detected for 180 sec.
P0630	VIN Not Programmed or Incompatible - ECM	VIN data is not registered or inconsistent in ECM.
P0660	Intake Manifold Tuning Valve Control Circuit/Open	Monitor signal of IMT valve is different from command signal for 5 sec.
P0662	Intake Manifold Tuning Valve Control Circuit High	Circuit voltage of IMT valve is higher than specification for 5 sec. when engine revolution is 3,000 RPM or less.
P1420	Evaporative Emission System Vent Valve Stuck Open	EVAP leak check pressure is lower than -0.16 kPa even though EVAP vent valve is changed from open (OFF) to close (ON) with EVAP leak detection pump ON.
P1421	Evaporative Emission System Vent Valve Stuck Closed	EVAP leak check pressure is not stable (difference between max. and min. is 0.36 kPa or more) when EVAP vent valve is open (OFF) with EVAP leak detection pump ON.
P1422	Evaporative Emission System Leak Detect Pump Stuck OFF	EVAP leak check pressure is higher than -0.16 kPa even though EVAP leak detection pump is ON.
P1424	Evaporative Emission System Leak Detecting Pump Flow High	Reference pressure-1 of EVAP leak check pressure is lower than specification (-4.31 to -3.95 kPa depending on barometric pressure). Reference pressure-2 of EVAP leak check pressure is lower than specification (-4.66 to -4.40 kPa depending on barometric pressure).
P1425	Evaporative Emission System Leak Detecting Pump Flow Low	Reference pressure-1 or reference pressure-2 of EVAP leak check pressure is higher than specification (-1.34 to -0.98 kPa depending on barometric pressure).
P1510	ECM Back-Up Power Supply Malfunction	Backup power voltage of internal circuit is lower than 2.5 V for 5 sec.
P2096	Post Catalyst Fuel Trim System Too Lean	Correction index of sub feedback based on HO2S signal is lower than specified value for 5 sec.
P2097	Post Catalyst Fuel Trim System Too Rich	Correction index of sub feedback based on HO2S signal is higher than specified value for 5 sec.
P2101	Throttle Actuator Control Motor Circuit Range / Performance	Throttle actuator control circuit is higher than specified current or temperature for 0.5 sec.
P2102	Throttle Actuator Control Motor Circuit Low	Power supply voltage of throttle actuator control relay is lower than 5 V for 0.5 sec. even though throttle actuator control relay turned on.
P2103	Throttle Actuator Control Motor Circuit High	Power supply voltage of throttle actuator control relay is higher than 5 V for 0.6 sec. even though throttle actuator control relay is turned off.
P2111	Throttle Actuator Control System - Stuck Open	Throttle position does not change by 2° during diagnosing throttle valve at ignition switch turned OFF.
P2119	Throttle Actuator Control Throttle Body Range / Performance	Difference between the measured (actual) throttle valve opening angle and the target throttle valve opening angle which is calculated based on accelerator pedal opening angle and engine condition is more than specification for specified time.
P2122	Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input	Output voltage of APP sensor (main) is lower than 0.45 V for 0.5 sec.
P2123	Throttle / Pedal Position Sensor / Switch "D" Circuit High Input	Output voltage of APP sensor (main) is higher than 4.8 V for 0.5 sec.
P2127	Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input	Output voltage of APP sensor (sub) is lower than 0.17 V for 0.5 sec.
P2128	Throttle / Pedal Position Sensor / Switch "E" Circuit High Input	Output voltage of APP sensor (sub) is higher than 2.4 V for 0.5 sec.
P2135	Throttle / Pedal Position Sensor / Switch "A"/"B" Voltage Correlation	Difference between the opening angle based on TP sensor (main) and the opening angle based on TP sensor (sub) is more than specification for 0.5 sec.
P2138	Throttle / Pedal Position Sensor / Switch "D"/"E" Voltage Correlation	Difference between the opening angle based on APP sensor (main) and the opening angle based on APP sensor (sub) is more than specification for 0.5 sec.
P2195	O2 Sensor Signal Stuck Lean (Bank-1 Sensor-1)	A/F sensor signal is higher than 1.15 for 10 sec. even though HO2S voltage is higher than 0.2 V while vehicle is running after warmed up.
P2196	O2 Sensor Signal Stuck Rich (Bank-1 Sensor-1)	A/F sensor signal is lower than 0.85 for 10 sec. even though HO2S voltage is lower than 0.7 V while vehicle is running after warmed up.
P2227	Barometric Pressure Circuit Performance	Difference between barometric pressure measured by EVAP leak check pressure sensor and estimated barometric pressure based on engine revolution, throttle angle and engine load is more than 25 kPa for 0.5 sec. 5 times.
P2228	Barometric Pressure Circuit Low	EVAP leak check pressure sensor voltage is lower than 0.6 V for 5 sec.
P2229	Barometric Pressure Circuit High	EVAP leak check pressure sensor voltage is higher than 4.7 V for 5 sec.
P2237	O2 Sensor Positive Current Control Circuit/Open	Impedance of A/F sensor element is higher than 500 Ω for 15 sec. after A/F sensor heater duty had experienced 70% or more.
P2400	Evaporative Emission System Leak Detection Pump Control Circuit / Open	Monitor signal of EVAP leak detection pump is higher than 4 V for 5 sec. even though EVAP leak detection pump is OFF.
P2A01	O2 Sensor Circuit Performance (Bank-1 Sensor-2)	Stuck lean: Max. HO2S sensor signal is lower than 0.4 V for 40 sec. and difference between max. and min. of HO2S signal is less than 0.2 V. Stuck rich: Min. HO2S sensor signal is higher than 0.85 V for 40 sec. and difference between max. and min. of HO2S signal is less than 0.2 V. High output performance malfunction: Max. HO2S sensor signal is lower than 0.6 V for 15 sec. even though A/F (fuel trim) is shifted from lean to rich after fuel cut. Low output performance malfunction: Min. HO2S sensor signal is higher than 0.1 V for 4 sec. (A/T), 5 sec. (M/T) after fuel cut.
U0073	Control Module Communication Bus Off	Transmission error that is inconsistent between transmission data and transmission monitor (CAN bus monitor) data is detected more than 30 times continuously.
U0101	ECM Lost Communication With TCM	Reception error of communication data for TCM is detected for longer than specified time.
U0121	ECM Lost Communication With ABS / ESP® Control Module	Reception error of communication data for ABS / ESP® control module assembly is detected for longer than specified time.
U0140	ECM Lost Communication With BCM	Reception error of communication data for BCM is detected for longer than specified time.