Ford recalling sure 2021-2022 Mustang Mach-E automobiles; excessive voltage battery fundamental contactors could overheat

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Ford is recalling sure 2021-2022 Mustang Mach-E automobiles as a result of the excessive voltage battery fundamental contactors could overheat, inflicting the car to lose drive energy. The defect impacts 48,294 automobiles.

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Within the faulty automobiles, DC quick charging and repeated wide-open pedal occasions may cause the excessive voltage battery fundamental contactors to overheat. Overheating could result in arcing and deformation of {the electrical} contact surfaces, which can lead to a contactor that continues to be open or a contactor that welds closed.

If the contactor opens whereas driving, a powertrain malfunction warning mild illuminates and the car will show “Cease Safely Now” within the cluster when the car experiences a direct lack of motive energy. If the contactors weld closed whereas driving, a powertrain malfunction warning mild illuminates on the subsequent drive cycle, together with a no-start situation.

Between 13 July 2021 and 31 Might 2022, there have been 286 guarantee claims in North America associated to an open or welded contactor. Ford is conscious of 1 VOQ alleging a no-start and itemizing DTCs associated to this.

The treatment for this can be a Secondary On-Board Diagnostic Management Module (SOBDMC) and Battery Power Management Module (BECM) software program replace. Ford is anticipated to start Over-The-Air (OTA) deployment to replace the SOBDMC and BECM software program for affected automobiles in July 2022. Alternatively, house owners could have the choice to take their car to a Ford or Lincoln vendor to finish the software program replace. There shall be no cost for this service.

The up to date SOBDMC software program will monitor contactor temperature and intelligently cut back battery energy to stop harm to the contactor. The up to date BECM software program will monitor contactor resistance to establish an overheated contactor and cut back car energy to stop additional harm.

Ford has not issued directions to cease driving automobiles underneath this security recall. The up to date software program was launched into manufacturing on 25 Might 2022.

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