Code Definition

U0153 — Lost Communication With Side Restraints Control Module

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

About U0153

U0153 is a generic (obd-ii standard) network communication diagnostic trouble code recorded for Ford 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 U0153 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 primary Restraints Control Module (RCM) and other networked modules communicate with the Side Restraints Control Module over the Controller Area Network (CAN) to monitor and control side airbag and pretensioner deployment. DTC U0153 is set when the receiving module does not detect valid CAN messages from the side restraints control module within a calibrated time while the ignition is in the RUN position. This indicates a network communication failure or a loss of power or ground to the side restraints control module, preventing it from participating in the CAN network.

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