U2104 OBD Trouble Code

1 result found

U2104 - GM
Type Network - Manufacturer Controlled DTC - Manufacturer Controlled
Description

CAN Bus Reset Counter Overrun (4L30-E Transmission)

Cause

Key on and then the TCM detected a loss of communication on either CAN Bus line that exceeded 40 time out requirements

Try also: http://www.obd-codes.com/u2104