# Service bulletin 18\-012\-25

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11015526
- Published by NHTSA: 2025\-03\-11
- Manufacturer's number: 18\-012\-25
- Manufacturer's date: 2025\-03\-08
- NHTSA component: POWER TRAIN
- Manufacturer's system: Powertrain Control Module

## NHTSA's 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\-00 \- Control Module Processor.\*\* ● P043E\-00 \- EVAP System Leak Detection Reference Orifice Low Flow. ● P2C33\-00 \- Crankcase Pressure Sensor B Circuit Range/Performance. ● P2C91 \- Crankcase Ventilation System \- Hose ""B"" 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 ""A"" 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. The customer may also experience the following: ● Vehicle is in limp 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."

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11015526-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11015526-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Trouble codes named

P0072, P0073, P00B2, P02D2, P043E, P0606, P0607, P2C33, P2C91, P304A, P304E

## Vehicles listed

- 2021 ALFA ROMEO GIULIA

JSON: [/v1/bulletins/11015526](/v1/bulletins/11015526)

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