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Home >> Dodge and Ram >> 2014 >> Viper Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 ((Body Control Module (BCM) - Electrical Diagnostics)) >> 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 car, the 2015 Dodge Viper. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
ANTI-LOCK BRAKE SYSTEM MODULE (ABS) POWERS AND GROUNDS
ANTI-LOCK BRAKE SYSTEM MODULE (ABS)
CAN C BUS (+) CIRCUIT OPEN
CAN C BUS (-) CIRCUIT OPEN
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