Pinpoint Test K : U0121:00: Notes
WARNING: This page is about a different car, the 2018 Lincoln MKC. 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 PAM communicates with the ABS module through the High Speed Controller Area Network 1 (HS1-CAN), High Speed Controller Area Network 2 (HS2-CAN) and the GWM.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0121:00 | Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information | Sets in continuous memory in the PAM if expected messages from the ABS module are missing for 5 seconds or more. |
Possible Sources
- Communication concern
- ABS module
- GWM concern
- PAM (integral to the BCM)