Pinpoint Test G : U0121:87: Notes
Normal Operation and Fault Conditions
The PAM communicates with the ABS on the HS-CAN.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0121:87 | Lost Communication With Anti-Lock Brake System (ABS) Control Module: Missing Message | A continuous and on-demand DTC that sets when the PAM is unable to communicate with the ABS module. |
Possible Sources
- Communication concern
- ABS module
- PAM