Pinpoint Test M : DTC (Diagnostic Trouble Code) U0121: 87: Notes
Refer to Module Communications Network for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Parking Aid - System Operation and Component Description .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0121: 87 | Lost Communication With Anti-Lock Brake System (ABS) Control Module: Missing Message | Sets in continuous memory in the IPMB if expected messages from the ABS module are not received for 5 seconds or more when the ignition is on. |
Possible Causes
- Communication network concern
- ABS Module
- IPMB concern