U0102 JEEP – Lost Communication with Transfer Case Control Module

U0102 JEEP Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

U0102 JEEP Possible Causes

Faulty Totally Integrated Power Module (TIPM),Totally Integrated Power Module (TIPM) harness is open or shorted,Totally Integrated Power Module (TIPM) circuit poor electrical connection

U0102 JEEP Description

Modules connected to the high speed serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. The OBDII code sets when the bus messages not received from the Totally Integrated Power Module (TIPM) for approximately two to five seconds.