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Pinpoint Test A : U0100:87: Notes

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Wiring Diagram Module Communications Network for schematic and connector information.

Normal Operation and Fault Conditions 

The BCM communicates with the PCM over the HS-CAN. REFER to: Communications Network - System Operation and Component Description .

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0100:87 Lost Communication With ECM/PCM "A": Missing Message A continuous memory DTC that sets in the BCM if powertrain data messages received from the PCM are missing.

Possible Sources 

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