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Home >> Ford >> 2015 >> Transit-350 HD Base, Van Cargo Extended >> Repair and Diagnosis >> External Pages >> Different car >> Section 63 (Electronic Engine Controls System - 3.5L ECOBOOST (235KW/320PS)) >> Diagnosis And Testing >> Electronic Engine Controls >> Pinpoint Tests >> Pinpoint Test A : U0121 >> Notes

Pinpoint Test A : U0121: Notes

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DTC Fault Trigger Condition-PCM 

DTC Description Fault Trigger Conditions
U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module The PCM sets this DTC if data messages received from the ABS module over the High Speed Controller Area Network (HS-CAN) are missing.

Normal Operation and Fault Conditions 

REFER to: Communications Network .

Possible Sources 

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