2024 Alfa Romeo Tonale P0610 ECU Vehicle Options Mismatch TSB

Owners of certain 2024 Alfa Romeo Tonale vehicles may notice a Malfunction Indicator Lamp (MIL) illumination on their dashboard, often referred to as a check engine light. This warning is typically accompanied by the Diagnostic Trouble Code (DTC) "P0610 - ECU Vehicle Options Mismatch". This condition applies to vehicles built on or before April 17, 2024 (MDH 0417XX) and equipped with the 1.3L I4 Turbo PHEV Engine (Sales Code EYG).

Technical Service Bulletin (TSB) 21-046-24, issued on July 25, 2024, addresses this specific concern. The root cause has been identified as an issue with the Transmission Control Module (TCM) software. This bulletin outlines a procedure for dealerships to update the TCM software to resolve the "P0610 - ECU Vehicle Options Mismatch" DTC and extinguish the MIL.

Symptoms You Might Notice

If your 2024 Alfa Romeo Tonale is affected, you will primarily observe the following:

• Illumination of the Malfunction Indicator Lamp (MIL) on the instrument cluster.
• The presence of the Diagnostic Trouble Code (DTC) "P0610 - ECU Vehicle Options Mismatch" when the vehicle is scanned.

It's important to note that after performing a Body Control Module (BCM) reset and proxy alignment of all modules, the check engine light will remain on if this DTC is present.

Fault Codes / DTCs

The primary diagnostic trouble code associated with this issue is:

Code	Description
P0610	ECU Vehicle Options Mismatch

Diagnosis and Trigger Conditions

To properly diagnose this issue, technicians will use a Scan Tool, such as wiTECH, in conjunction with the diagnostic procedures available in DealerCONNECT/Service Library. They will verify that all related systems are functioning correctly. If any other DTCs or symptom conditions are present, these must be recorded and addressed before proceeding with the TSB 21-046-24 repair.

Important Warnings for Technicians

During the repair procedure, specific precautions must be taken to ensure vehicle safety and prevent damage:

• Battery Voltage: A battery charger must be installed to ensure the battery voltage remains between 13.2 and 13.5 volts during the flash process. Exceeding 13.5 volts should be avoided.
• Flash Interruption: If the software flash process is interrupted or aborted for any reason, it must be restarted from the beginning.
• High Voltage Charger: The vehicle must not be connected to a high voltage charger while performing software updates.
• Brake Booster Vacuum Pump: Removal of the 30 Amp fuse for the Brake Booster Vacuum Pump from the Power Distribution Center (PDC) is necessary. Failure to remove this fuse could result in damage to the Brake Booster Vacuum Pump.

Repair Procedure Summary

The repair for the "Alfa Romeo Tonale P0610" issue primarily involves updating the Transmission Control Module (TCM) software. The general steps a technician will follow are:

1. Prepare the Vehicle: Install a battery charger to maintain stable voltage during the software update process.
2. Fuse Removal: Locate and remove the 30 Amp fuse for the Brake Booster Vacuum Pump from the Power Distribution Center (PDC) in the engine compartment. This is crucial to prevent damage during the reprogramming.
3. TCM Reprogramming: Reprogram the TCM with the latest available software using the wiTECH Diagnostic Application. If any issues arise during this step, the technician will submit a ticket to the Helpdesk.
4. Fuse Reinstallation: Once the TCM is successfully reprogrammed, the 30 Amp Brake Booster Vacuum Pump fuse is reinstalled.
5. DTC Clearing and Alignment: All diagnostic trouble codes that may have been set during the reprogramming process are cleared using wiTECH. Following this, a "Proxi Configuration Alignment" is performed under the BCM and "Miscellaneous Functions" sections of the wiTECH tool.

This procedure, identified by Labor Operation Number 18-19-05-16, typically takes 0.4 hours to complete.

Required Tools or Parts

The primary tool required for this repair is the wiTECH diagnostic system or an equivalent scan tool capable of performing software updates and proxy alignments.

What Owners Should Do

If you own a 2024 Alfa Romeo Tonale and are experiencing a Malfunction Indicator Lamp (MIL) illumination or suspect the "P0610 - ECU Vehicle Options Mismatch" DTC, you should schedule an appointment with an authorized Alfa Romeo dealership. The repair, which involves reprogramming the TCM, is reimbursable under the provisions of the warranty. The dealership will use failure code CC (Customer Concern) when processing the claim for this Technical Service Bulletin 21-046-24.

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Source: NHTSA ID: 11005325