Alfa Romeo
Alfa Romeo

Alfa Romeo Error Codes

Alfa Romeo Automobiles is an Italian Luxury car manufacturer and a subsidiary of Stellantis. The company was founded on 24 June 1910, in Milan, Italy. "Alfa" is an acronym of its founding name, "Anonima Lombarda Fabbrica Automobili.


Automobile Error Codes

P0010  
Powertrain Control Module (PCM) failure, Variable valve timing actuator failure, Wiring issue 

P0011  
Camshaft variable timing solenoid failure, Engine oil level is too low, The engine is not timed correctly, The engine oil does not meet the manufacturer's requirements, Variable valve timing actuator failure, Worn timing chain 

P0012  
Camshaft variable timing solenoid failure, Engine oil level is too low, The engine is not timed correctly, The engine oil does not meet the manufacturer's requirements, Variable valve timing actuator failure, Worn timing chain 

P0013  
Powertrain Control Module (PCM) failure, Variable valve timing actuator failure, Wiring issue 

P0014  
Camshaft variable timing solenoid failure, Engine oil level is too low, The engine is not timed correctly, The engine oil does not meet the manufacturer's requirements, Variable valve timing actuator failure, Worn timing chain 

P0101  
Large vacuum leaks, Split Intake Air Boot or PCV Hose, Defective intake manifold gaskets, Mass Airflow Sensor (MAF), Mass Air Flow Sensor circuit and or wiring problems, Defective Barometric Pressure Sensor, Dirty or contaminated Mass Air Flow Sensing wire or filament, PCM software needs to be updated 

P0102  
The Mass Airflow Sensor (MAF) Sensor is unplugged or the wiring is damaged, Loose or corroded electrical terminals in the MAF Sensor circuit, Faulty MAF Sensor 

P0113  
Defective Intake Air Temperature Sensor, Dirty air filter, Defective Mass Air Flow Sensor, Faulty or corroded Intake Air Temperature Sensor wiring or connections 

P0128  
Defective Engine Thermostat, Defective Engine Coolant Temperature Sensor, Defective Intake Air Temperature Sensor, Defective Cooling System, Low Engine Coolant, Dirty Engine Coolant causing incorrect Coolant Temperature Sensor readings, Defective/always running 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 and/or circuit problem, PCM software needs to be updated, Defective PCM 

P0171  
Control module software needs to be updated, 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 

P0174  
PCM software needs to be updated, Vacuum leaks (Intake Manifold Gaskets, vacuum hoses, PCV hoses, etc.), Faulty Mass Airflow (MAF) Sensor, Plugged Fuel Filter or weak Fuel Pump, Plugged or dirty Fuel Injectors 

P0200  
Defective Fuel Injector, Faulty or corroded Fuel Injector, wiring, and/or connections, Plugged Fuel Injector, Dirt in the Fuel Injector 

P0201  
Defective Fuel Injector, Faulty or corroded Fuel Injector, wiring, and/or connections, Plugged Fuel Injector, Dirt in the 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) 

P0203  
Fuel injector failure, Powertrain Control Module (PCM) failure, Wiring issue 

P0205  
Fuel injector failure, Powertrain Control Module (PCM) failure, Wiring issue 

P0300  
Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and/or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) 

P0301  
Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and/or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) 

P0302  
Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and/or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) 

P0303  
Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and/or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) 

P0304  
Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and/or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) 

P0401  
Restriction in the EGR passages, usually caused by carbon buildup, The EGR Valve is defective, Lack of proper vacuum or electrical signal to the EGR valve, Malfunctioning EGR Vacuum supply solenoid, Lack of proper EGR system feedback to the computer from the: 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 

P0430  
Defective Catalytic Converter, Internal engine damage resulting in high oil consumption and/or a leaking Head Gasket has damaged the Catalytic Converter 

P0440  
Missing fuel cap, Defective or damaged fuel cap, Distorted or damaged Fuel Tank Filler Neck, Torn or punctured Evaporative system hose(s), Defective Fuel Tank Sending Unit gasket or seal, Split or damaged Carbon Canister, Defective Evaporative Vent Valve and/or Evaporative Purge Valve, Defective or damaged fuel tank 

P0441  
Missing fuel cap, Stuck open or closed purge valve, Defective or damaged fuel cap, Distorted, damaged or cracked Fuel Tank Filler Neck, Torn or punctured Evaporative system hose(s), Defective Fuel Tank Sending Unit gasket or seal, Split or damaged Carbon Canister, Defective Evaporative Vent Valve, Defective or damaged fuel tank 

P0442  
Defective or damaged fuel cap, Distorted or damaged Fuel Tank Filler Neck, Small tear or puncture in the Evaporative system hose(s) and/or Carbon Canister, Defective Fuel Tank Sending Unit gasket or seal, Small split in a seam of the Carbon Canister, Defective Evaporative Vent Valve and/or Evaporative Purge Valve, Defective or damaged Fuel Tank, Defective Fuel Tank Pressure Sensor, Defective Leak Detection Pump, Slightly loose and/or worn clamps or hardened O-rings anywhere in the EVAP system 

P0455  
Missing fuel cap, Defective or damaged fuel cap, Distorted or damaged Fuel Tank Filler Neck, Torn or punctured Evaporative system hose(s), Defective Fuel Tank Sending Unit gasket or seal, Split or damaged Carbon Canister, Defective Evaporative Vent Valve and/or Evaporative Purge Valve, Defective or damaged fuel tank, Defective Fuel Tank Pressure Sensor 

P0500  
Defective Vehicle Speed Sensor, Defective Speedometer, Vehicle Speed Sensor wiring or connector, Communication (CAN) bus problems, Defective transmission or differential Vehicle Speed Sensor drive gear 

P0501  
Defective Vehicle Speed Sensor, Defective Speedometer, Vehicle Speed Sensor wiring or connector, Communication (CAN) bus problems, Defective transmission or differential Vehicle Speed Sensor drive gear 

P0505  
Defective Idle Air Control Motor, Intake Manifold Vacuum leaks, Carbon buildup in the 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 

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 

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 

P0601  
Lack of proper voltage to the PCM, Defective PCM memory module, Defective PCM ground circuit(s), Defective PCM controlled output devices 

P0602  
Powertrain Control Module (PCM) failure, Wiring issue 

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 

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 

P0700  
Defective Shift Solenoids, Defective Engine Coolant Temperature Sensor, Defective Valve Body, Dirty transmission fluid that restricts the hydraulic passages 

P0705  
Defective Transmission Range Sensor (PRNDL input), Defective Transmission Range Sensor (PRNDL input) wiring or connector, Defective Valve Body, Defective manual shift valve linkage, Dirty transmission fluid that restricts the hydraulic passages 

P0706  
Defective Transmission Range Sensor (PRNDL input), Defective Transmission Range Sensor (PRNDL input) wiring or connector, Defective Valve Body, Defective manual shift valve linkage, Dirty transmission fluid that restricts the hydraulic passages 

P0720  
Defective Output Speed Sensor, Defective Shift Solenoids, Defective Engine Coolant Temperature Sensor, Defective Valve Body, Dirty transmission fluid that restricts the hydraulic passages, Defective Output Speed Sensor wiring or connector 

P0730  
Defective Shift Solenoids, Defective Engine Coolant Temperature Sensor, Defective Valve Body, Dirty transmission fluid that restricts the hydraulic passages 

P0841  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue 

P0842  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue 

P0845  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue 

P0846  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue 

P0847  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue 

P0901  
Clutch master cylinder failure, Clutch solenoid failure, Transmission Control Module (TCM) failure 

P0935  
Hydraulic power unit assembly failure, Transmission Control Module (TCM) failure, Wiring issue 

P0942  
Hydraulic power unit assembly failure, Transmission Control Module (TCM) failure, Wiring issue 

P0944  
Clogged transmission filter, Transmission fluid level is low, Transmission oil pump failure, Wiring issue 

P0961  
Transmission shift solenoid failure 

P0A08  
Inverter/converter assembly failure, Powertrain Control Module (PCM) failure, Wiring issue 

P0A0D  
High voltage safety device failure, Inverter/converter assembly failure, Power management control module failure, Service disconnect plug is not properly connected, Wiring issue 

P0A0F  
Hybrid transaxle assembly failure, Internal engine failure, Power management control module failure 

P0A7F  
Poor connections at the HV battery, A problem with the HV battery, ECU issues 

P0A80  
High voltage battery assembly failure 

P0B22  
Battery contactor assembly failure, Battery Energy Control Module (BECM) failure 

P0B24  
Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue 

P0B26  
Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue 

P0B28  
Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue 

P0B30  
Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue 

P0C00  
Drive motor generator power inverter control module failure 

P0C09  
Drive motor generator assembly failure, Drive motor generator power inverter control module failure 

P0C11  
Coolant system leak, Drive motor generator power inverter control module failure, Engine cooling fan failure, Water pump failure 

P0C14  
Coolant system leak, Drive motor generator power inverter control module failure, Engine cooling fan failure, Water pump failure 

P0C15  
Coolant system leak, Drive motor generator power inverter control module failure, Engine cooling fan failure, Water pump failure 

P2000  
Diesel Particulate Filter (DPF) failure, Intake air leak, Mass Airflow (MAF) sensor is dirty/loss of calibration 

PP2002  
Diesel Particulate Filter (DPF) failure, Intake air leak, Mass Airflow (MAF) sensor is dirty/loss of calibration 

P2004  
A failed IMRC actuator, A problem with the intake manifold or linkage, Wiring issues 

P2006  
Intake manifold runner control actuator failure, Powertrain Control Module (PCM) failure, Restricted vacuum lines 

P2101  
Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle control motor failure, Wiring issue 

P2122  
Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle control motor failure, Wiring issue 

P2135  
Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle Position Sensor (TPS) failure, Wiring issue 

P2138  
Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle Position Sensor (TPS) failure, Wiring issue 

P2181  
Engine coolant heater failure, Engine coolant level is too low, Thermostat failure 

P2210  
NOx sensor failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2213  
NOx sensor failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2237  
Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2238  
Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2251  
Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2302  
Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2303  
Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2305  
Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2308  
Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2310  
Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2401  
Evap leak detection pump failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2402  
Evap leak detection pump failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2422  
EVAP vent valve failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2431  
Air control solenoid failure, Powertrain Control Module (PCM) failure, Secondary Air System pressure sensor failure, Wiring issue 

P2432  
Air control solenoid failure, Powertrain Control Module (PCM) failure, Secondary Air System pressure sensor failure, Wiring issue 

P2500  
Alternator failure, Battery failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2501  
Alternator failure, Battery failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2503  
Alternator failure, Battery failure, Wiring issue 

P2509  
Powertrain Control Module (PCM) failure, Powertrain Control Module (PCM) power relay failure, Wiring issue 

P250C  
Oil level sensor failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2601  
Coolant Heat Storage (CHS) water pump failure, Coolant Heat Storage (CHS) water pump relay, Powertrain Control Module (PCM) failure, Wiring issue 

P2607  
Intake air heater, Powertrain Control Module (PCM) failure, Wiring issue 

P2609  
Intake air heater, Powertrain Control Module (PCM) failure, Wiring issue 

P2610  
An internal PCM problem, A problem with the PCM power or ground circuit 

P2614  
Broken tone ring, Camshaft Position Sensor (CMP) failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2706  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission shift solenoid failure, Wiring issue 

P2711  
Internal transmission failure, Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission solenoid failure, Wiring issue 

P2714  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission shift solenoid failure, Wiring issue 

P2716  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission shift solenoid failure, Wiring issue 

P2723  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission shift solenoid failure, Wiring issue 

P2803  
Powertrain Control Module (PCM) failure, Transmission Control Module (TCM) failure, Transmission range sensor failure, Wiring issue 

P2806  
Powertrain Control Module (PCM) failure, Transmission Control Module (TCM) failure, Transmission range sensor failure, Transmission range sensor is out of adjustment, Wiring issue 

P2809  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission pressure control solenoid failure, Wiring issue 

P2810  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission pressure control solenoid failure, Wiring issue 

P2815  
Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission pressure control solenoid failure, Wiring issue 

P2A00  
Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2A01  
Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2A03  
Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2A04  
Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue 

P2BA8  
Faulty NOx Sensors, NOx Sensors harness is open or shorted, NOx Sensors circuit poor electrical connection, Fualty Diesel Particulate Filter (DPF) 

P3000  
Fuel level is too low, High voltage battery assembly failure, High voltage battery is not sufficiently charged 

P3100  
High voltage powertrain control module failure 

P3400  
Faulty Cylinder Deactivation System/td> 

P3401  
Engine oil level is too low, Powertrain Control Module (PCM) failure, Variable valve timing solenoid failure, Wiring issue 

B0081  
Wiring issues, Control module problems, A problem with the airbag 

C0040  
A faulty wheel speed sensor, A problem with the wheel speed sensor circuit, Reluctor issues, A problem with the ABS module 

U0001  
A faulty wheel speed sensor, A problem with the wheel speed sensor circuit, Reluctor issues, A problem with the ABS module 

U0073  
A faulty control module, A problem with the CAN bus 

U0100  
A faulty PCM, A problem with the control module circuit, A problem with the CAN bus 

U0107  
A dead battery, A faulty TAC module, A problem with TAC module circuit, A problem with the CAN bus 

U0121  
A dead battery, A faulty ABS module, A problem with ABS module circuit, A problem with the CAN bus 

SOURCE: https://www.alfaromeostevenscreek.com/service/obd-ii-trouble-codes.htm



Alfa Romeo Error Codes

Alfa Romeo fault codes

Alfa Romeo diagnostic codes

Alfa Romeo error symbols

Alfa Romeo common faults


Product Reviews:

The inner door handle fell off and so many other people has discovered the
The inner door handle fell off and so many other people has discovered the same. What a shame you dont realize your own mistakes . Im done with Alfa Romeo
Published: August 7, 2019
Simone Boisen
Source: trustpilot.com

Their overpriced STELVIO 2019 13k miles let me down twice already for batte
Their overpriced STELVIO 2019 13k miles let me down twice already for battery related problems. Electrical needed 2 trips to the garage and is still not working. Paint coming off the bumper and fuel van deforming. 1 day waiting and counting for being rescued after another electrical fail. 7 phone calls to an indifferent customer service could not spare me from waiting such a long time .... and that would be a Premium brand ? Alfa Romeo ... all show and no go,
Published: January 8, 2021
Andrea Appolloni
Source: trustpilot.com

Bought a brand new Alfa Romeo Giulia less than a year ago.Due to the tracki
Bought a brand new Alfa Romeo Giulia less than a year ago.Due to the tracking being out from manufacturer, Ive had to have both front tyres replaced at my own cost and customer services arent in the slightest way interested.Just lost a return customer, goodbye!!!
Published: August 15, 2018
n richardson
Source: trustpilot.com

You can trust in !!! The new cars are great....test it..dont hear on vw dri
You can trust in !!! The new cars are great....test it..dont hear on vw drivers!Wonderful cars...great stelvio..for familys absolutely nice car.
Published: December 1, 2019
Ulf Alfred
Source: trustpilot.com

I bought a new Stelvio Milano Editzione in September 2019.In May 2021 the b
I bought a new Stelvio Milano Editzione in September 2019.In May 2021 the brake pad warning light illuminated at 8,500 miles.Given the mileage, I assumed it was a fault with the warning light.When I took the car to my nearest dealer I was informed that the rear discs were heavily worn and pitted and that the rear pads had less than 1mm of friction material left. They also confirmed that they wouldnt be covered under the cars 5 year warranty which had been a key consideration in my buying process.The replacement cost was 575.I asked them to clarify why the rear pads and discs were effectively destroyed after only 8,500 miles, while the fronts - which do the bulk of the stopping - were virtually brand new.They were unable to provide an answer.As I needed the car back, I paid the repair bill and kept the displaced discs and pads for the inevitable argument.After contacting Alfa Romeo UK and eventually threatening them with court action, they agreed in writing on the 4th June to cover the replacement cost of the discs and 50% of the pads, amounting to 430.I provided them with my bank details on the 5th June.On the 6th July I had still not received the refund so emailed them again.On the 8th July I received a reply confirming that my refund would be made within 28 days.Perhaps predictably, this didnt happen.I therefore emailed them again on the 6th August which generated a call back to tell me they couldnt find a director to sign off my refund.I spent 50,000 with Alfa Romeo, yet after two months they apparently cant rustle up a 430 refund, as promised in writing???After a further month of getting the runaround but no money, Im now at the point where I feel I have no choice but to recover the monies via the courts.Alfa, I love my Stelvio. It does everything I want. its practical; quick; good in snow; and other than the brakes, has been utterly faultless.However what you laughingly refer as a premium brand customer service, truly stinks.So sad.
Published: September 20, 2021
David Sowden
Source: trustpilot.com

Test drove a Stelvio last week, really great drive. Didnt end up going with
Test drove a Stelvio last week, really great drive. Didnt end up going with it in the end, but still a lovely car
Published: April 30, 2019
Robert Patel
Source: trustpilot.com

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