P0606 on Alfa Romeo vehicles An internal processor fault in the engine control module
P0606 is named on 5 Alfa Romeo model years (2021–2024): 9 manufacturer filings and 0 owner reports in NHTSA’s files, across Giulia, Stelvio.
Which Alfa Romeo model years name P0606
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2024 Alfa Romeo Giulia | Power Train | 2 | — |
| 2024 Alfa Romeo Stelvio | Power Train | 2 | — |
| 2023 Alfa Romeo Giulia | Power Train | 2 | — |
| 2023 Alfa Romeo Stelvio | Power Train | 2 | — |
| 2021 Alfa Romeo Stelvio | Power Train | 1 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Alfa Romeo filings that name P0606
Source: NHTSA manufacturer communicationsBulletins and campaigns Alfa Romeo filed with NHTSA whose summary names P0606. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- 18-005-25 Service bulletin2025-02-08 · Power Train
- "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit the following Diagnostic Trouble Code (DTC): ● P0606 - Control Module Processor. Customers may also experience the following: ● Vehicle goes into limp-in mode. This bulletin involves reprogramming the PCM with the latest available software"
- 18-005-25 REV. A Service bulletin2025-03-19 · Power Train
- "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit the following Diagnostic Trouble Code (DTC): ● P0606 - Control Module Processor. Customers may also experience the following: ● Vehicle goes into limp-in mode. REPAIR SUMMARY: **This bulletin involves inspecting and possibly reprogramming the PCM wi
- 18-004-25 Service bulletin2025-02-08 · Power Train
- "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit the following Diagnostic Trouble Code (DTC): ● P0606 - Control Module Processor. Customers may also experience the following: ● Vehicle goes into limp-in mode This bulletin involves reprogramming the PCM with the latest available software"
- 18-004-25 REV. A Service bulletin2025-03-19 · Power Train
- "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit the following Diagnostic Trouble Code (DTC): ● P0606 - Control Module Processor. Customers may also experience the following: ● Vehicle goes into limp-in mode REPAIR SUMMARY: **This bulletin involves inspecting and possibly reprogramming the PCM wit
- 18-006-25 Service bulletin2025-02-08 · Power Train
- "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit the following Diagnostic Trouble Code (DTC): ● P0606 - Control Module Processor. Customers may also experience the following: ● Vehicle goes into limp-in mode. This bulletin involves reprogramming the PCM with the latest available software"
- 18-006-25 REV. A Service bulletin2025-03-20 · Power Train
- "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit the following Diagnostic Trouble Code (DTC): ● P0606 - Control Module Processor. Customers may also experience the following: ● Vehicle goes into limp-in mode. REPAIR SUMMARY: **This bulletin involves inspecting and possibly reprogramming the PCM wi
- 18-003-25 Service bulletin2025-02-08 · Power Train
- "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit the following Diagnostic Trouble Code (DTC): ● P0606 - Control Module Processor. Customers may also experience the following: ● Vehicle goes into limp-in mod This bulletin involves reprogramming the PCM with the latest available software"
- 18-003-25 REV. A Service bulletin2025-03-19 · Power Train
- "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit the following Diagnostic Trouble Code (DTC): ● P0606 - Control Module Processor. Customers may also experience the following: ● Vehicle goes into limp-in mode. REPAIR SUMMARY: **This bulletin involves inspecting and possibly reprogramming the PCM wi
- 18-007-25 Service bulletin2025-02-26 · Power Train
- "Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● **P0606 - Control Module Processor.** ● P043E-00 - EVAP System Leak Detection Reference Orifice Low Flow. ● P2C33-00 - Crankcase Pressure Sensor B Circuit Range/Performance. ● P
What P0606 means
Source: SAE J2012 / OBD-IIAn internal processor fault in the engine control module.
A stored code names the test that failed, never the part that caused it. The record above is what Alfa Romeo and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs P0606 a known problem on Alfa Romeo vehicles?
It is a documented one: NHTSA's files hold 9 manufacturer filings and 0 owner reports naming P0606 on 5 Alfa Romeo model years (2021–2024). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Alfa Romeo models does P0606 appear on most?
2024 Giulia (2 documents), 2023 Giulia (2 documents), 2024 Stelvio (2 documents).
Does P0606 on a Alfa Romeo mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.