Pinpoint Test C : U0121:00, P1934:87: Notes
Normal Operation and Fault Conditions
REFER to: Communications Network - 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 the BCM if messages received from the ABS module over the HS-CAN are missing. |
| P1934:87 | Vehicle Speed Signal: Missing Message | Sets in the BCM if vehicle speed messages received from the ABS module over the HS-CAN are missing. |
Possible Sources
- Communication network concern
- Battery voltage concern
- ABS module
- BCM