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Home >> Fiat >> 2017 >> 500 Abarth, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 ((Transmission Control Module (TCM) - Electrical Diagnostics - 500)) >> DTC Troubleshooting >> U0121-00 Lost Communication With Anti-Lock Brake System (Abs) Control Module >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE 

NOTE:

Make sure the battery is fully charged before proceeding.

  1. Turn the ignition on.
  2. With the scan tool, read the active DTCs.

    Does the scan tool display: U0121 LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE?

    Yes 

    No