Pinpoint Tests AS: DTC U0121
Instrumentation, Message Center and Warning Chimes
Pinpoint Test AS: DTC U0121
Normal Operation
- DTC U0121 (Lost Communication With Anti-Lock Brake System [ABS] Control Module) - sets in continuous memory if data messages received from the ABS module over the High Speed Controller Area Network (HS-CAN) are missing for greater than 5 seconds.
This pinpoint test is intended to diagnose the following:
- ABS module
- Instrument Cluster (IC)
PINPOINT TEST AS: DTC U0121
