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Home >> Ford >> 2017 >> Escape S >> Repair and Diagnosis >> External Pages >> Different car >> Section 181 (MULTIFUNCTION Electronic Modules) >> Diagnosis And Testing >> Body Control Module (BCM) >> Pinpoint Tests >> Pinpoint Test S : U0100:87 >> Notes
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Pinpoint Test S : U0100:87: Notes

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

Normal Operation and Fault Conditions 

When the ignition transitions out of OFF mode, the BCM receives the PCM ID. If the BCM does not receive the PCM ID or the ID is invalid, the PATS does not allow the engine to start.

BCM 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 when the BCM does not receive the ID from the PCM over the HS-CAN. The ID is only sent one time per ignition cycle and is sent within milliseconds of the ignition being transitioned out of off.

Possible Sources 

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