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Can't always turn engine off after start/stop battery change

spud1962
spud1962
in Ford Focus Club

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Just had a stop/start battery replaced and now, when i start the engine, it won't turn off, unless multiple attempts are made !!! Sometimes the cockpit display panel goes into "off mode", but the engine continues to idle.?

A similar battery change with an identical battery was made 6 month ago with no issue and no kind of Engine Management System reprogramming was needed.

Any ideas, please?

  • Quote


    Disconnect the battery negative lead (yes again), and leave it off for 10 to 20 minutes. Then reconnect it and wait 5 minutes before turning the ignition on. The system will have rebooted and should then be OK

     

    Did your remember to reset the BMS after you fitted the new battery ?

  • Quote

    Your car's issue could be due to the loss of 'idle memory'. Try leaving your car on and idle for 10-15 minutes.

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