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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 1292 ((Audio (Radio) - Electrical Diagnostics - 2500 Hd & 3500 Hd)) >> DTC Troubleshooting >> U0121-Lost Communication With Anti-Lock Brake Module

U0121-Lost Communication With Anti-Lock Brake Module

WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Perform the COMMUNICATION PRE-DIAGNOSTIC PROCEDURE. Refer to COMMUNICATION PRE-DIAGNOSTIC PROCEDURE .

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