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DTC Chart: All-Terrain Control Module

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

NOTE: The 4X4 switch module is known by the scan tool as the All-Terrain Control Module.
DTC Description Action
U0140:00 Lost Communication With Body Control Module (BCM): No Sub Type Information GO to Pinpoint Test L 
U3000:49 Control Module: Internal Electronic Failure CLEAR the DTCs. CYCLE the ignition. CARRY OUT the All Terrain Control Module self-test. RETRIEVE and RECORD all DTCs, Road test the vehicle, if the DTC returns, INSTALL a new ATCM REFER to: Mode Select Switch (MSS) .
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