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Home / Collision Repair News / Identifying FCA/Stellantis Programming Differences

Identifying FCA/Stellantis Programming Differences

Posted on 18 December 2019 | Share: | Print Print

While doing research on FCA/Stellantis for the RTS OEM Calibration Requirements Search, the RTS team noticed on some of the ADAS, there is a procedure called a “PROXI alignment”. We have researched what this means in order to give you clarity, in the event you see this procedure mentioned in the service manual.

The PROXI alignment is a programming process that allows modules or electronic control units (ECUs) to communicate with the vehicle. Not performing this procedure may cause DTCs and system failures. The service manual will instruct you as to when this procedure needs to be done, and will tell you what tools and equipment may be needed during this procedure. Although this procedure is not calibration, it is still an important and necessary operation.

For example, per the 2016 Chrysler 200 service manual, blind spot module installation: "NOTE: If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to determine if alignment of the PROXI configuration data into the new ECU is needed. If PROXI alignment is needed, follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under the Body Control Module (BCM) Miscellaneous Functions menu."

On this vehicle, the left and right blind spot sensors each have their own ECU within the sensor. When the manual states, "If this Electronic Control Unit (ECU) is being replaced with a new unit…" it is referring to the replacement of the blind spot sensor.

Always follow OEM procedures to ensure a complete, safe, and quality repair.

Additional I-CAR Collision Repair News you may find helpful:
ADAS, Calibration, And Scanning Article Hotspot
Collision Information Website Access: FCA/Stellantis
Locating ADAS Information: FCA/Stellantis
Step-By-Step: Accessing FCA/Stellantis Repair Information

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