Pinpoint Test L: U0121:00: Notes
U0121:00
Normal Operation and Fault Conditions
PAM 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 data messages received from the ABS module through the GWM are missing for 5 seconds or longer. |
Possible Sources
- Communication concern
- ABS module
- GWM concern
- PAM (integral to the BCM) concern