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OBD CODE U2100

UserX86

By UserX86,
in Avensis Club

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UserX86 Newbie

UserX86

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Recently I had a new alternator and Battery and now the car just doesn't want to start, comes with trouble code U2100.

Any suggestions 🤔.

Thank for your time.

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flash22 Grand Master

flash22

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Disconnect the Battery for 15-20 min and let the ecu reset, when a Battery goes flat the ecu has to relearn items like throttle position it also needs to run all of its monitors this can take a good 20-30 min of driving with differing amounts of throttle

A U code is a diagnostic network fault more than likely caused by your scan tool

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