Pinpoint Test Q : DTC (Diagnostic Trouble Code) U0253:00: Notes
WARNING: This page is about a different car, the 2020 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Module Communications Network for schematic and connector information.
Normal Operation and Fault Conditions
The IPMA communicates with the APIM through the HS-CAN2, GWM and HS-CAN1
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| IPMA U0253:00 | Lost Communication With Accessory Protocol Interface Module: No Sub Type Information | A continuous memory DTC that sets in the IPMA if messages received from the APIM are missing. |
Possible Sources
- Communication network concern
- APIM
- IPMA concern
- GWM concern