If a replacement PCM is incorrectly flash programed can it be corrected

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The new pcm was flashed for a 2.7 with ABS except the car does not have ABS therefore it does not register speed or trip information to the PCM generating a code U1120 and a shutter or pulsing idle when in drive. Is there a way to overwrite the flash or do we need to acquire another PCM and begin again with the flashing.

tkp in Chicago IL

Mar 21, 2014

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What are the best Chrysler repair shops?

RepairPal Certified shops can diagnose and repair your 2005 Chrysler 300. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

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If a replacement PCM is incorrectly flash programed can it be corrected

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tkp in Chicago IL

Mar 21, 2014

2 Replies

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Dealer Diagnosticson Mar 22, 2014

software is software, it is just a program, no different then windows XP. the first thing that happens on a software install on all vehicles, is the old software gets erased, then the new software gets written. you can reprogram that computer as many times as you like, until it is the correct software for the vehicle, so program it again and be done with it.

ProfessorGon Mar 21, 2014

Once it has been flashed it is there and cannot be re-written, start all over.

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Popular Answer

What are the best Chrysler repair shops?

RepairPal Certified shops can diagnose and repair your 2005 Chrysler 300. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.