CVT Automatic Transaxle

U0121-LOST COMMUNICATION WITH ANTILOCK BRAKE MODULE

For a complete wiring diagram Consult Diagrams/Electrical.

Theory of Operation

The Controller Area Network (CAN) is a high speed serial communication line for multiplex communication between multiple controllers that reside on the network. The Transmission Control Module monitors the transmit and receive message from the CAN BUS.

- When Monitored:
Ignition on in the run position with a system voltage between 9.0 and 16.0 volts.

IOD fuse is installed or vehicle odometer is over 80 kilometers (50 miles).

No CAN C BUS DTCs present.

- Set Condition:
A loss of CAN Bus communication between the TCM and ABS for the period of 2.0 seconds.

For CAN Bus diagnostic procedures refer to the No Response tests Manufacturer Code Charts