Pinpoint Test H : DTC (Diagnostic Trouble Code) U0121:00: Notes
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Wiring Diagram Module Communications Network for schematic and connector information.
Normal Operation and Fault Conditions
The IPMA communicates with the ABS module on the HS-CAN2.
Possible Causes
- Communication network concern
- ABS module
- IPMA concern
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0121:00 | Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information | A continuous memory DTC that sets in the IPMA if messages received from the ABS module over the HS-CAN2 are missing. |