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U0102 - Lost Communication With Transfer Case Control Module

DTC DESCRIPTION U0102 - LOST COMMUNICATION WITH TRANSFER CASE CONTROL MODULE

Description:  This DTC sets when the PCM receives invalid data from the transfer case control module.
Possible Causes: 
  • Communication error
Diagnostic Aids:  Network DTC concerns occur during module to module communication. Refer to the appropriate Module Communications Network article, Communication Network DTC chart to continue diagnosis.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST AE .