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Home >> Fiat >> 2012 >> 500 Pop, Automatic Trans >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> (Transmission Control Module (TCM) - Electrical Diagnostics) >> Diagnosis And Testing >> U0121-Lost Communication With Anti-Lock Brake System (Abs) Control Module >> Set Condition:

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Set Condition:

Bus messages not received from the Braking System Module (BSM) for approximately two to five seconds.

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