The TCM can either receive data from the Engine Control Module or ABS control module, or it can send data to the ECM and ABSCM by using CAN communication. The CAN communicaton is one of the vehicle communications method, which is now widely used to transfer the vehicle data.
When the TCM cannot read the data from the ABS ECU through the CAN-BUS line, the TCM sets this code.
CAN-BUS circuit malfunctioning or ABS ECU can be a posssible cause of this DTC.
Item
Detecting Condition
Possible Cause
DTC Strategy
? Check the communication
? Short or Open in CAN communication circuit
? Faulty in ECU
Enable Conditions
? 10.2V < Battery voltage < 15.5V
? TCU communication = normal
? No fail in System
Threshold Value
? Detect abnormal signal
Diagnostic Time
? More than 0.25sec
Fail Safe
? Keep data before failure detection
? Self learning control is inhibited