Pinpoint Test Y : U0258:87 Or U1A00:00: Notes
WARNING: This page is about a different car, the 2020 Ford F-150. 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 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 Causes
- Wiring, terminals or connectors
- RTM
- BCM