62TE Automatic Transaxle

U0121 LOST COMMUNICATION WITH ABS

For a complete wiring diagram Refer to Diagrams/Electrical. Electrical Diagrams


Theory of Operation


The NGC controller communicates over the CAN C bus and continuously monitors bus activity. If the NGC is unable to communicate with the ABS, a DTC will set and the NGC will illuminate the MIL.


- When Monitored:

Every 7 msec with:


1) Engine speed greater than 500 rpm.


2) Battery voltage between 10 and 16 volts.

- Set Condition:

CAN C bus messages are not received for 10 seconds.


Refer to Communications for diagnostic procedures and for further possible causes.