Code Definition

U0114 — Lost Communication With Final Drive Control Module

System: Network Communication  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About U0114

U0114 is a generic (obd-ii standard) network communication diagnostic trouble code. It belongs to the U-prefix family of codes, which covers inter-module network communication (CAN, LIN, FlexRay, or similar) faults.

Scanning & clearing: Network (U) codes report communication faults between modules. When diagnosing U-codes, checking the vehicle's CAN bus integrity, supply/ground at each module, and reading all modules for related faults is usually the first step.

Because U0114 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The Final Drive Control Module manages functions such as four wheel drive engagement and torque distribution across the driveline, and it shares status with the Powertrain Control Module, the ABS and stability module, and other drivetrain controllers over the CAN data network. DTC U0114 is a generic network code set when one or more modules stop receiving valid CAN messages from the Final Drive Control Module for a calibrated period while the ignition is on and the rest of the network is communicating. The fault usually means the module has gone offline due to loss of power or ground, a CAN wi...

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