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Home › Dodge and Ram › 2011 › Caliber Heat, Standard › Repair and Diagnosis › Transmission › Transmission Control Systems › (Transmission Control Module (TCM) - Electrical Diagnostics) › DTC Troubleshooting › U0121-Lost Communication With Antilock Brake Module › Possible Causes

Possible Causes

Refer to DTC Based Diagnostics and perform the appropriate diagnostic procedure. Refer to Diagnosis and Testing .