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Home >> Ford >> 2018 >> Mustang GT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 124 (Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Locks, Latches and Entry Systems >> Pinpoint Tests >> Pinpoint Test Y : U0258:87 Or U1A00:00 >> Notes

Pinpoint Test Y : U0258:87 Or U1A00:00: Notes

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

Refer to Remote Keyless Entry and Alarm for schematic and connector information.

Normal Operation and Fault Conditions 

The RTM communicates with the BCM over a LIN-based circuit and, when the network is awake, over the CAN.

RTM DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U1A00:00 Private Communication Network: No Sub Type Information Sets when the RTM detects a fault with the LIN-based circuit to the BCM.

BCM DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0258:87 Lost Communication With Radio Transceiver: Missing Message Sets when the BCM detects a communication fault with the RTM over the LIN-based circuit.

Possible Causes 

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