Diagnostic Trouble Code (DTC) Information TCM-0A01

Condition 

The brake control module (BCM) puts a signal about the speed of the car on the control area network (CAN). The transmission control module (TCM) uses the signal to diagnose the transmission speed and engine speed (RPM) sensor.

The diagnostic trouble code (DTC) is stored if the transmission control module (TCM) registers that the signal from the brake control module (BCM) is missing or indicated as faulty.

Substitute Value 

• None.

Possible Source 

• Fault in the brake control module (BCM)
• Fault on the control area network (CAN).

Fault symptom[s] 

• General warning lamp lit.