Code Definition

U0105 (87) — Lost Communication With SRS (Supplemental Restraint System) Module

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

About U0105

U0105 is a generic (obd-ii standard) network communication diagnostic trouble code recorded for LDV 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 U0105 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 U0105:87 is set when one or more control modules on the vehicle CAN network detect a loss of communication with the SRS control module for longer than the calibrated timeout period. The fault is logged when expected CAN messages from the SRS module are missing, invalid, or not updated, indicating that the SRS module is offline or unable to communicate reliably. Subcode 87 specifically identifies a missing message, meaning the SRS module is not transmitting its expected data on the bus rather than sending a corrupted or implausible value. This condition disables airbag and seatbelt pretensi...

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