Pinpoint Test L : U0121:00: Notes
Normal Operation and Fault Conditions
The PAM communicates with the ABS module through the GWM. REFER to: Parking Aid - System Operation and Component Description .
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 messages received from the ABS module through the GWM are missing for 5 seconds or more. |
Possible Sources
- Communication concern
- ABS module
- GWM concern
- PAM (integral to the BCM)