DTC U0105: Lost Communication With Fuel Injector Control Module: General Description

This vehicle has a Control Area Network CAN bus sytem. CAN is a method of comunication between the PCM and other control units. Some of the other control units that could be on the CAN lines are PCM, TCM, ESP PCM, ABS and BCM. The CAN consist of a 2 wire network, a high and a low wire. A vehicle can have two CAN sytems. A High Speed CAN for engine, trans and ABS and a Low Speed CAN for BCM and windows.