LEMON Manuals
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Dodge and Ram
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2011
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Caliber Express
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Repair and Diagnosis
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Transmission
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Transmission Control Systems
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(Transmission Control Module (TCM) - Electrical Diagnostics)
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DTC Troubleshooting
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U0121-Lost Communication With Antilock Brake Module
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Set Condition:
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Set Condition:
A loss of CAN Bus communication between the TCM and ABS for the period of 2.0 seconds.