U2100 OBD Trouble Code

1 result found

U2100 - GM
Type Network - Manufacturer Controlled DTC - Manufacturer Controlled
Description

CAN Bus Off (4L30-E Transmission) Conditions

Cause

Key on and the TCM detected a loss of communication on either Communication Area Network (CAN) Bus line for one second

Try also: http://www.obd-codes.com/u2100