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February 26, 2025 Service bulletin

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp...

Alfa Romeo technical service bulletin 18-007-25 for 2021 Alfa Romeo Stelvio.

Bulletin number
18-007-25
Component
Power train
Summary
"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. ● P2C91-00 - Crankcase Ventilation System - Hose 9B9 Disconnected. ● P00B2-00 - Radiator Coolant Temperature Sensor Circuit Range-Performance. ● P304A-00 - Fuel Rail Pressure Sensor 1 - Out Of Range High. ● P304E-00 - Fuel Rail Pressure Sensor 2 - Out Of Range High. ● P02D2-00 - Cylinder 4 Fuel Injector 9A9 Offset Learning At Min Limit. ● P0607-00 - Control Module Performance. ● P0072-00 - Ambient Air Temperature Sensor Circuit Low. ● P0073-00 - Ambient Air Temperature Sensor Circuit High. Customers may also experience the following: ● Vehicle goes into limp-in mode. This bulletin involves reprogramming both the Primary (ECM) and Secondary (ECM2) Engine Control Modules (ECMs) also known as Powertrain Control Modules (PCMs) with the latest available software. NOTE: An additional module flash is required for this update to be effective, the following module is to be updated along with this PCM update: ● Transmission Control Module (TCM)"

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