VAG Vehicle DTC DTC (Diagnostic Trouble Code)

Audi Fault Codes List

Contents

1. What Does It Mean When My Audi Check Engine Light Is On?
2. Where Can I Find a List of Common Audi Fault Codes?

Audi fault codes can be a headache, but understanding them is the first step to resolving car issues. This guide dives into the most frequent Audi diagnostic trouble codes, their causes, and actionable solutions to get your Audi back on the road, running smoothly and efficiently with the help of AutoExplain.com. If you’re dealing with Audi error codes, we’ve got you covered with comprehensive diagnostic and repair assistance.

1. What Does It Mean When My Audi Check Engine Light Is On?

When your Audi’s check engine light illuminates, it signifies that the vehicle’s On-Board Diagnostic (OBD) system has detected a problem. This system monitors various components and systems within your car, such as the engine, transmission, and emissions control system. When a fault is detected, the system stores a specific diagnostic trouble code (DTC) in the vehicle’s computer. The check engine light is a warning signal indicating that you should investigate the issue to prevent potential damage or further complications. Addressing the underlying cause promptly can help maintain your Audi’s performance and longevity. If you need help, AutoExplain.com provides expert remote diagnostic and repair assistance to get your Audi back on the road fast.

2. Where Can I Find a List of Common Audi Fault Codes?

Here’s a detailed list of common Audi fault codes, along with their possible causes and troubleshooting tips. This compilation helps you understand and address issues effectively.

Code	Common Problems That Trigger This Code	Possible Solutions
P0010	Powertrain Control Module (PCM) failure, Variable valve timing actuator failure, Wiring issue	Check wiring connections, replace variable valve timing actuator, or consider PCM replacement.
P0011	Camshaft variable timing solenoid failure, Low engine oil level, Incorrect engine timing, Incorrect engine oil, Variable valve timing actuator failure, Worn timing chain	Check engine oil level, verify engine timing, replace camshaft variable timing solenoid, or replace worn timing chain.
P0012	Camshaft variable timing solenoid failure, Low engine oil level, Incorrect engine timing, Incorrect engine oil, Variable valve timing actuator failure, Worn timing chain	Check engine oil level, verify engine timing, replace camshaft variable timing solenoid, or replace worn timing chain.
P0013	Powertrain Control Module (PCM) failure, Variable valve timing actuator failure, Wiring issue	Inspect wiring, replace variable valve timing actuator, or consider PCM replacement.
P0014	Camshaft variable timing solenoid failure, Low engine oil level, Incorrect engine timing, Incorrect engine oil, Variable valve timing actuator failure, Worn timing chain	Check engine oil level, verify engine timing, replace camshaft variable timing solenoid, or replace worn timing chain.
P0101	Large vacuum leaks, Split Intake Air Boot or PCV Hose, Defective intake manifold gaskets, Mass Airflow Sensor (MAF), MAF circuit/wiring problems, Defective Barometric Pressure Sensor, Dirty MAF wire/filament, PCM software update needed	Check for vacuum leaks, replace intake air boot or PCV hose, replace intake manifold gaskets, replace MAF sensor, inspect MAF circuit/wiring, replace Barometric Pressure Sensor, clean MAF sensor, or update PCM software.
P0102	Unplugged or damaged MAF Sensor wiring, Loose or corroded electrical terminals in the MAF Sensor circuit, Faulty MAF Sensor	Ensure MAF Sensor is correctly plugged in, repair or replace damaged wiring, clean or replace faulty MAF Sensor.
P0113	Defective Intake Air Temperature Sensor, Dirty air filter, Defective Mass Air Flow Sensor, Faulty/corroded Intake Air Temperature Sensor wiring/connections	Replace Intake Air Temperature Sensor, replace air filter, replace Mass Air Flow Sensor, repair or clean wiring/connections.
P0128	Defective Engine Thermostat, Defective Engine Coolant Temperature Sensor, Defective Intake Air Temperature Sensor, Defective Cooling System, Low Engine Coolant, Dirty Engine Coolant, Defective/always running Engine Cooling fan(s)	Replace Engine Thermostat, replace Engine Coolant Temperature Sensor, replace Intake Air Temperature Sensor, repair Cooling System, add Engine Coolant, flush Engine Coolant, repair/replace Engine Cooling fan(s).
P0135	Defective Oxygen Sensor/Air Fuel Ratio Sensor, defective Oxygen Sensor/Air Fuel Ratio Sensor Heater Circuit, Exhaust System Leak, Intake Air System leak, Low Fuel Pressure, Defective Engine Coolant Temperature Sensor, Defective sensor wiring/circuit problem, PCM software update needed, Defective PCM	Replace Oxygen Sensor/Air Fuel Ratio Sensor, repair Oxygen Sensor/Air Fuel Ratio Sensor Heater Circuit, fix Exhaust System Leak, fix Intake Air System leak, check Fuel Pressure, replace Engine Coolant Temperature Sensor, repair sensor wiring/circuit, update PCM software, or replace PCM.
P0171	Control module software update needed, Vacuum leaks (intake manifold gaskets, vacuum hoses, PCV hoses, etc.), Mass air flow sensor, Plugged fuel filter or weak fuel pump, Plugged or dirty fuel injectors	Update control module software, repair vacuum leaks, replace mass air flow sensor, replace fuel filter or fuel pump, or clean/replace fuel injectors.
P0174	PCM software update needed, Vacuum leaks, Faulty Mass Airflow (MAF) Sensor, Plugged Fuel Filter or weak Fuel Pump, Plugged or dirty Fuel Injectors	Update PCM software, repair vacuum leaks, replace MAF sensor, replace fuel filter or fuel pump, or clean/replace fuel injectors.
P0200	Defective Fuel Injector, Faulty/corroded Fuel Injector wiring/connections, Plugged Fuel Injector, Dirt in the Fuel Injector	Replace Fuel Injector, repair/clean Fuel Injector wiring/connections, clean Fuel Injector, remove dirt from Fuel Injector.
P0201	Defective Fuel Injector, Faulty/corroded Fuel Injector wiring/connections, Plugged Fuel Injector, Dirt in the Fuel Injector	Replace Fuel Injector, repair/clean Fuel Injector wiring/connections, clean Fuel Injector, remove dirt from Fuel Injector.
P0202	Malfunction of the Fuel Injector, Malfunction of the PCM Fuel Injector driver circuit, Defective wiring/connections in the Fuel Injector wiring harness, Defective Fuel Injector power circuit(s)	Replace Fuel Injector, repair PCM Fuel Injector driver circuit, repair wiring/connections in the Fuel Injector wiring harness, or repair Fuel Injector power circuit(s).
P0203	Fuel injector failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace fuel injector, consider PCM replacement, or repair wiring.
P0205	Fuel injector failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace fuel injector, consider PCM replacement, or repair wiring.
P0300	Worn spark plugs/ignition wires/coils/distributor cap and rotor, Incorrect ignition timing, Vacuum leak(s), Low/weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft/Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems	Replace spark plugs/ignition wires/coils/distributor cap and rotor, correct ignition timing, repair vacuum leaks, check fuel pressure, repair EGR system, replace Mass Air Flow Sensor, replace Crankshaft/Camshaft Sensor, replace Throttle Position Sensor, or address mechanical engine problems.
P0301	Worn spark plugs/ignition wires/coils/distributor cap and rotor, Incorrect ignition timing, Vacuum leak(s), Low/weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft/Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems	Replace spark plugs/ignition wires/coils/distributor cap and rotor, correct ignition timing, repair vacuum leaks, check fuel pressure, repair EGR system, replace Mass Air Flow Sensor, replace Crankshaft/Camshaft Sensor, replace Throttle Position Sensor, or address mechanical engine problems.
P0302	Worn spark plugs/ignition wires/coils/distributor cap and rotor, Incorrect ignition timing, Vacuum leak(s), Low/weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft/Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems	Replace spark plugs/ignition wires/coils/distributor cap and rotor, correct ignition timing, repair vacuum leaks, check fuel pressure, repair EGR system, replace Mass Air Flow Sensor, replace Crankshaft/Camshaft Sensor, replace Throttle Position Sensor, or address mechanical engine problems.
P0303	Worn spark plugs/ignition wires/coils/distributor cap and rotor, Incorrect ignition timing, Vacuum leak(s), Low/weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft/Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems	Replace spark plugs/ignition wires/coils/distributor cap and rotor, correct ignition timing, repair vacuum leaks, check fuel pressure, repair EGR system, replace Mass Air Flow Sensor, replace Crankshaft/Camshaft Sensor, replace Throttle Position Sensor, or address mechanical engine problems.
P0304	Worn spark plugs/ignition wires/coils/distributor cap and rotor, Incorrect ignition timing, Vacuum leak(s), Low/weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft/Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems	Replace spark plugs/ignition wires/coils/distributor cap and rotor, correct ignition timing, repair vacuum leaks, check fuel pressure, repair EGR system, replace Mass Air Flow Sensor, replace Crankshaft/Camshaft Sensor, replace Throttle Position Sensor, or address mechanical engine problems.
P0401	Restriction in the EGR passages (carbon buildup), Defective EGR Valve, Lack of proper vacuum/electrical signal to the EGR valve, Malfunctioning EGR Vacuum supply solenoid, Lack of proper EGR system feedback	Clean EGR passages, replace EGR Valve, check vacuum/electrical signal to the EGR valve, repair EGR Vacuum supply solenoid, check feedback from Manifold Absolute Pressure Sensor (MAP), Differential EGR Pressure Feedback Sensor (DPFE), EGR Valve Position Sensor (EVP), EGR Temperature Sensor.
P0420	Inefficient Catalytic Converter(s), Defective Front or Rear Oxygen Sensor(s), Misfiring engines	Replace Catalytic Converter(s), replace Oxygen Sensor(s), fix misfiring engines.
P0430	Defective Catalytic Converter, Internal engine damage	Replace Catalytic Converter, address internal engine damage.
P0440	Missing/defective fuel cap, Distorted/damaged Fuel Tank Filler Neck, Torn/punctured Evaporative system hose(s), Defective Fuel Tank Sending Unit gasket/seal, Split/damaged Carbon Canister, Defective Evaporative Vent/Purge Valve, Defective/damaged fuel tank	Replace fuel cap, repair Fuel Tank Filler Neck, replace Evaporative system hose(s), replace Fuel Tank Sending Unit gasket/seal, replace Carbon Canister, replace Evaporative Vent/Purge Valve, or repair fuel tank.
P0441	Missing/defective fuel cap, Stuck open/closed purge valve, Distorted/damaged Fuel Tank Filler Neck, Torn/punctured Evaporative system hose(s), Defective Fuel Tank Sending Unit gasket/seal, Split/damaged Carbon Canister, Defective Evaporative Vent Valve, Defective/damaged fuel tank	Replace fuel cap, replace purge valve, repair Fuel Tank Filler Neck, replace Evaporative system hose(s), replace Fuel Tank Sending Unit gasket/seal, replace Carbon Canister, replace Evaporative Vent Valve, or repair fuel tank.
P0442	Defective/damaged fuel cap, Distorted Fuel Tank Filler Neck, Small tear/puncture in Evaporative system hose(s)/Carbon Canister, Defective Fuel Tank Sending Unit gasket/seal, Defective Evaporative Vent/Purge Valve, Defective/damaged Fuel Tank, Defective Fuel Tank Pressure Sensor, Defective Leak Detection Pump, Loose/worn clamps/O-rings in the EVAP system	Replace fuel cap, repair Fuel Tank Filler Neck, repair Evaporative system hose(s)/Carbon Canister, replace Fuel Tank Sending Unit gasket/seal, replace Evaporative Vent/Purge Valve, repair Fuel Tank, replace Fuel Tank Pressure Sensor, replace Leak Detection Pump, or tighten/replace clamps/O-rings in the EVAP system.
P0455	Missing/defective fuel cap, Distorted/damaged Fuel Tank Filler Neck, Torn/punctured Evaporative system hose(s), Defective Fuel Tank Sending Unit gasket/seal, Split/damaged Carbon Canister, Defective Evaporative Vent/Purge Valve, Defective/damaged fuel tank, Defective Fuel Tank Pressure Sensor	Replace fuel cap, repair Fuel Tank Filler Neck, replace Evaporative system hose(s), replace Fuel Tank Sending Unit gasket/seal, replace Carbon Canister, replace Evaporative Vent/Purge Valve, repair fuel tank, or replace Fuel Tank Pressure Sensor.
P0500	Defective Vehicle Speed Sensor, Defective Speedometer, Vehicle Speed Sensor wiring/connector, Communication (CAN) bus problems, Defective transmission/differential Vehicle Speed Sensor drive gear	Replace Vehicle Speed Sensor, repair Speedometer, repair Vehicle Speed Sensor wiring/connector, address CAN bus problems, or repair transmission/differential Vehicle Speed Sensor drive gear.
P0501	Defective Vehicle Speed Sensor, Defective Speedometer, Vehicle Speed Sensor wiring/connector, Communication (CAN) bus problems, Defective transmission/differential Vehicle Speed Sensor drive gear	Replace Vehicle Speed Sensor, repair Speedometer, repair Vehicle Speed Sensor wiring/connector, address CAN bus problems, or repair transmission/differential Vehicle Speed Sensor drive gear.
P0505	Defective Idle Air Control Motor, Intake Manifold Vacuum leaks, Carbon buildup in the Throttle Body air passages	Replace Idle Air Control Motor, repair Intake Manifold Vacuum leaks, clean Throttle Body air passages.
P0506	Defective/sticking Idle Air Control Motor, Intake Manifold Vacuum leaks, Carbon buildup in the Throttle Body air passages, Defective Power Steering Pressure Switch	Replace Idle Air Control Motor, repair Intake Manifold Vacuum leaks, clean Throttle Body air passages, replace Power Steering Pressure Switch.
P0507	Defective/sticking Idle Air Control Motor, Intake Manifold Vacuum leaks, Carbon buildup in the Throttle Body air passages, Defective Coolant Temperature Sensor, Defective Charging System/Alternator, Defective Power Steering Pressure Switch	Replace Idle Air Control Motor, repair Intake Manifold Vacuum leaks, clean Throttle Body air passages, replace Coolant Temperature Sensor, repair Charging System/Alternator, replace Power Steering Pressure Switch.
P0600	Defective PCM (Power Train Control Module), Defective PCM data bus wiring/connections, Defective PCM data bus ground circuit(s), Defective PCM or other control module controlled output devices, Defective CAN bus communication	Replace PCM, repair PCM data bus wiring/connections, repair PCM data bus ground circuit(s), repair/replace PCM controlled output devices, or address CAN bus communication issues.
P0601	Lack of proper voltage to the PCM, Defective PCM memory module, Defective PCM ground circuit(s), Defective PCM controlled output devices	Check voltage to the PCM, replace PCM memory module, repair PCM ground circuit(s), or repair/replace PCM controlled output devices.
P0602	Powertrain Control Module (PCM) failure, Wiring issue	Replace PCM, repair wiring. Benefit from AutoExplain.com’s expert remote services.
P0603	Lack of proper voltage to the Keep Alive Memory connection on the PCM, Defective PCM Keep Alive Memory Module (KAM), Defective PCM ground circuit(s), Defective PCM controlled output devices	Check voltage to the Keep Alive Memory connection on the PCM, replace PCM Keep Alive Memory Module (KAM), repair PCM ground circuit(s), or repair/replace PCM controlled output devices.
P0605	Lack of proper voltage and/or ground to the PCM, Defective PCM ROM memory module, Defective PCM ground circuit(s), Defective PCM controlled output devices	Check voltage and ground to the PCM, replace PCM ROM memory module, repair PCM ground circuit(s), or repair/replace PCM controlled output devices.
P0700	Defective Shift Solenoids, Defective Engine Coolant Temperature Sensor, Defective Valve Body, Dirty transmission fluid	Replace Shift Solenoids, replace Engine Coolant Temperature Sensor, replace Valve Body, flush transmission fluid.
P0705	Defective Transmission Range Sensor (PRNDL input), Defective Transmission Range Sensor wiring/connector, Defective Valve Body, Defective manual shift valve linkage, Dirty transmission fluid	Replace Transmission Range Sensor, repair Transmission Range Sensor wiring/connector, replace Valve Body, repair manual shift valve linkage, flush transmission fluid.
P0706	Defective Transmission Range Sensor (PRNDL input), Defective Transmission Range Sensor wiring/connector, Defective Valve Body, Defective manual shift valve linkage, Dirty transmission fluid	Replace Transmission Range Sensor, repair Transmission Range Sensor wiring/connector, replace Valve Body, repair manual shift valve linkage, flush transmission fluid.
P0720	Defective Output Speed Sensor, Defective Shift Solenoids, Defective Engine Coolant Temperature Sensor, Defective Valve Body, Dirty transmission fluid, Defective Output Speed Sensor wiring/connector	Replace Output Speed Sensor, replace Shift Solenoids, replace Engine Coolant Temperature Sensor, replace Valve Body, flush transmission fluid, repair Output Speed Sensor wiring/connector.
P0730	Defective Shift Solenoids, Defective Engine Coolant Temperature Sensor, Defective Valve Body, Dirty transmission fluid	Replace Shift Solenoids, replace Engine Coolant Temperature Sensor, replace Valve Body, flush transmission fluid.
P0841	Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue	Replace TCM, check/add transmission fluid, replace Transmission fluid pressure sensor, repair wiring.
P0842	Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue	Replace TCM, check/add transmission fluid, replace Transmission fluid pressure sensor, repair wiring.
P0845	Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue	Replace TCM, check/add transmission fluid, replace Transmission fluid pressure sensor, repair wiring.
P0846	Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue	Replace TCM, check/add transmission fluid, replace Transmission fluid pressure sensor, repair wiring.
P0847	Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue	Replace TCM, check/add transmission fluid, replace Transmission fluid pressure sensor, repair wiring.
P0901	Clutch master cylinder failure, Clutch solenoid failure, Transmission Control Module (TCM) failure	Replace clutch master cylinder, replace clutch solenoid, replace TCM.
P0935	Hydraulic power unit assembly failure, Transmission Control Module (TCM) failure, Wiring issue	Replace hydraulic power unit assembly, replace TCM, repair wiring.
P0942	Hydraulic power unit assembly failure, Transmission Control Module (TCM) failure, Wiring issue	Replace hydraulic power unit assembly, replace TCM, repair wiring.
P0944	Clogged transmission filter, Transmission fluid level is low, Transmission oil pump failure, Wiring issue	Replace transmission filter, check/add transmission fluid, replace transmission oil pump, repair wiring.
P0961	Transmission shift solenoid failure	Replace transmission shift solenoid.
P0A08	Inverter/converter assembly failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace inverter/converter assembly, replace PCM, repair wiring.
P0A0D	High voltage safety device failure, Inverter/converter assembly failure, Power management control module failure, Service disconnect plug is not properly connected, Wiring issue	Check high voltage safety device, replace inverter/converter assembly, replace power management control module, ensure service disconnect plug is properly connected, repair wiring.
P0A0F	Hybrid transaxle assembly failure, Internal engine failure, Power management control module failure	Replace hybrid transaxle assembly, address internal engine failure, replace power management control module.
P0A7F	Poor connections at the HV battery, A problem with the HV battery, ECU issues	Check connections at the HV battery, address issues with the HV battery, address ECU issues.
P0A80	High voltage battery assembly failure	Replace high voltage battery assembly.
P0B22	Battery contactor assembly failure, Battery Energy Control Module (BECM) failure	Replace battery contactor assembly, replace BECM.
P0B24	Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue	Replace BECM, replace high voltage battery assembly, repair wiring.
P0B26	Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue	Replace BECM, replace high voltage battery assembly, repair wiring.
P0B28	Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue	Replace BECM, replace high voltage battery assembly, repair wiring.
P0B30	Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue	Replace BECM, replace high voltage battery assembly, repair wiring.
P0C00	Drive motor generator power inverter control module failure	Replace drive motor generator power inverter control module.
P0C09	Drive motor generator assembly failure, Drive motor generator power inverter control module failure	Replace drive motor generator assembly, replace drive motor generator power inverter control module.
P0C11	Coolant system leak, Drive motor generator power inverter control module failure, Engine cooling fan failure, Water pump failure	Repair coolant system leak, replace drive motor generator power inverter control module, repair engine cooling fan, repair water pump.
P0C14	Coolant system leak, Drive motor generator power inverter control module failure, Engine cooling fan failure, Water pump failure	Repair coolant system leak, replace drive motor generator power inverter control module, repair engine cooling fan, repair water pump.
P0C15	Coolant system leak, Drive motor generator power inverter control module failure, Engine cooling fan failure, Water pump failure	Repair coolant system leak, replace drive motor generator power inverter control module, repair engine cooling fan, repair water pump.
P2000	Diesel Particulate Filter (DPF) failure, Intake air leak, Mass Airflow (MAF) sensor is dirty/loss of calibration	Replace Diesel Particulate Filter (DPF), repair intake air leak, clean/recalibrate Mass Airflow (MAF) sensor.
P2002	Diesel Particulate Filter (DPF) failure, Intake air leak, Mass Airflow (MAF) sensor is dirty/loss of calibration	Replace Diesel Particulate Filter (DPF), repair intake air leak, clean/recalibrate Mass Airflow (MAF) sensor.
P2004	A failed IMRC actuator, A problem with the intake manifold or linkage, Wiring issues	Replace IMRC actuator, repair intake manifold or linkage, repair wiring.
P2006	Intake manifold runner control actuator failure, Powertrain Control Module (PCM) failure, Restricted vacuum lines	Replace intake manifold runner control actuator, replace PCM, clear restricted vacuum lines.
P2101	Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle control motor failure, Wiring issue	Replace Accelerator Pedal Position (APP) assembly, replace PCM, replace Throttle control motor, repair wiring.
P2122	Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle control motor failure, Wiring issue	Replace Accelerator Pedal Position (APP) assembly, replace PCM, replace Throttle control motor, repair wiring.
P2135	Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle Position Sensor (TPS) failure, Wiring issue	Replace Accelerator Pedal Position (APP) assembly, replace PCM, replace Throttle Position Sensor (TPS), repair wiring.
P2138	Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle Position Sensor (TPS) failure, Wiring issue	Replace Accelerator Pedal Position (APP) assembly, replace PCM, replace Throttle Position Sensor (TPS), repair wiring.
P2181	Engine coolant heater failure, Engine coolant level is too low, Thermostat failure	Replace engine coolant heater, add engine coolant, replace thermostat.
P2210	NOx sensor failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace NOx sensor, replace PCM, repair wiring.
P2213	NOx sensor failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace NOx sensor, replace PCM, repair wiring.
P2237	Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue	Repair exhaust leak, replace oxygen sensor, replace PCM, repair wiring.
P2238	Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue	Repair exhaust leak, replace oxygen sensor, replace PCM, repair wiring.
P2251	Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue	Repair exhaust leak, replace oxygen sensor, replace PCM, repair wiring.
P2302	Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace ignition coil, replace PCM, repair wiring.
P2303	Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace ignition coil, replace PCM, repair wiring.
P2305	Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace ignition coil, replace PCM, repair wiring.
P2308	Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace ignition coil, replace PCM, repair wiring.
P2310	Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace ignition coil, replace PCM, repair wiring.
P2401	Evap leak detection pump failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace Evap leak detection pump, replace PCM, repair wiring.
P2402	Evap leak detection pump failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace Evap leak detection pump, replace PCM, repair wiring.
P2422	EVAP vent valve failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace EVAP vent valve, replace PCM, repair wiring.
P2431	Air control solenoid failure, Powertrain Control Module (PCM) failure, Secondary Air System pressure sensor failure, Wiring issue	Replace air control solenoid, replace PCM, replace Secondary Air System pressure sensor, repair wiring. Rely on AutoExplain.com for efficient remote diagnostics.
P2432	Air control solenoid failure, Powertrain Control Module (PCM) failure, Secondary Air System pressure sensor failure, Wiring issue	Replace air control solenoid, replace PCM, replace Secondary Air System pressure sensor, repair wiring.
P2500	Alternator failure, Battery failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace alternator, replace battery, replace PCM, repair wiring.
P2501	Alternator failure, Battery failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace alternator, replace battery, replace PCM, repair wiring.
P2503	Alternator failure, Battery failure, Wiring issue	Replace alternator, replace battery, repair wiring.
P2509	Powertrain Control Module (PCM) failure, Powertrain Control Module (PCM) power relay failure, Wiring issue	Replace PCM, replace PCM power relay, repair wiring.
P250C	Oil level sensor failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace oil level sensor, replace PCM, repair wiring.
P2601	Coolant Heat Storage (CHS) water pump failure, Coolant Heat Storage (CHS) water pump relay, Powertrain Control Module (PCM) failure, Wiring issue	Replace Coolant Heat Storage (CHS) water pump, replace Coolant Heat Storage (CHS) water pump relay, replace PCM, repair wiring.
P2607	Intake air heater, Powertrain Control Module (PCM) failure, Wiring issue	Replace intake air heater, replace PCM, repair wiring.
P2609	Intake air heater, Powertrain Control Module (PCM) failure, Wiring issue	Replace intake air heater, replace PCM, repair wiring. AutoExplain.com offers reliable remote assistance.
P2610	An internal PCM problem, A problem with the PCM power or ground circuit	Address internal PCM problem, repair PCM power or ground circuit.
P2614	Broken tone ring, Camshaft Position Sensor (CMP) failure, Powertrain Control Module (PCM) failure, Wiring issue	Replace broken tone ring, replace Camshaft Position Sensor (CMP), replace PCM, repair wiring.
P2706