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Home >> Ford >> 2021 >> Mustang Mach 1, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> MULTIFUNCTION Electronic Modules >> Diagnosis And Testing >> Body Control Module B (BCMB) >> Pinpoint Tests >> Pinpoint Test A: U0140:87 >> Notes

Pinpoint Test A: U0140:87: Notes

Normal Operation and Fault Conditions 

The BCM communicates with the PCM through the GWM. REFER to: Communications Network - System Operation and Component Description .

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0140:87 Lost Communication With Body Control Module: Missing Message A continuous memory DTC that sets in the BCMB if data messages received from the BCM through the GWM are missing.

Possible Sources