Pinpoint Test U : DTC (Diagnostic Trouble Code) U0253:87: Notes
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. 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 IPMB communicates with the APIM through the HS-CAN2, GWM and HS-CAN3.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0253:87 | Lost Communication With Accessory Protocol Interface Module: Missing Message | Sets in continuous memory in the IPMB if expected messages from the APIM are not received for 5 seconds or more when the ignition is on. |
Possible Causes
- Communication network concern
- APIM
- IPMB concern
- GWM concern