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Home >> Fiat >> 2016 >> 500L Easy, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 ((Transmission Control Module (TCM) - Electrical Diagnostics, Aw60T/6F25 Automatic Transmission - 500L)) >> DTC Troubleshooting >> U0121-00-Lost Communication With Anti-Lock Brake System (Abs) Control Module >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
CAN BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
BRAKING SYSTEM MODULE (BSM) POWER AND GROUND
BODY CONTROL MODULE (BCM) NOT CONFIGURED CORRECTLY
BRAKING SYSTEM MODULE (BSM)
MODULE THAT SET THIS DTC