Code Definition

U0233 — Lost Communication With Right-Hand Side Obstacle Detection Control Module

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

About U0233

U0233 is a generic (obd-ii standard) network communication diagnostic trouble code recorded for Land Rover vehicles. 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 U0233 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

DTC U0233 is set when one or more control modules on the vehicle CAN network detect a loss of communication with the right side obstacle detection control module for longer than the calibrated timeout period. The fault is logged when expected CAN messages from the module are missing, invalid, or not updating, indicating that the obstacle detection module is offline or not communicating reliably. On Land Rover vehicles this module manages the side mounted radar or ultrasonic sensors used by the driver assistance features. When the code is set the driver may lose blind spot monitoring, side coll...

Join TaT to view the complete code information and diagnostic details.

Quick Facts