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

U0258:87 or U1A00:00 

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 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 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 circuit.

Possible Cause 

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