Volvo FH4/FM4 Airbag TSR Control Unit 21673752 A2C53376150 28140906 Euro 6 Used Computers & Cruise Controls

Description:
This listing is for a genuine VOLVO airbag TSR control unit ECU module removed from a Euro 6 heavy truck. The control unit carries VOLVO OE part number 21673752 and Continental electronics reference A2C53376150, with additional cross reference 28140906 used in some catalogues. According to Volvo truck parts databases and independent suppliers, this module is fitted mainly to Volvo FH4 and FM4 series trucks with Euro 6 engines as the central control unit for the SRS/airbag system.

The TSR control unit is responsible for monitoring crash sensors, seat belt tensioners and airbag deployment logic, storing fault codes and communicating with the main vehicle CAN bus. It is mounted in the cab interior, typically on the tunnel or bulkhead area, bolted through the four cast lugs visible on the housing. The module is designed for 24V commercial vehicle electrical systems and connects via a single large multi‑pin plug.

The unit offered here is a used original part taken from a running truck. Before dismantling, the vehicle was driven and the airbag/SRS warning lamp was not illuminated, so the module was operating correctly in service. After removal the ECU was visually inspected, the connector and pins checked for damage or corrosion, and the housing cleaned. All identification labels are intact and clearly show VOLVO branding, part number 21673752, Continental A2C53376150, E-mark 10R-03 6243 and Made in Romania. There are normal cosmetic marks on the aluminium case from previous installation but no structural damage to the casting or mounting holes.

Compatibility is confirmed for Volvo FH4 and FM4 Euro 6 models where the original SRS ECU carries part number 21673752 or cross reference 28140906 / A2C53376150. It may fit a wider range of Volvo heavy trucks built on the same platform; however, buyers must always check the part number on their existing unit and consult a Volvo parts catalogue or dealer to ensure correct fitment before purchase.

When fitting this module it is strongly recommended that installation is carried out by a qualified workshop familiar with Volvo airbag systems. After installation the vehicle diagnostic system should be used to clear any stored crash data or fault codes and to perform configuration/coding to the specific chassis if required. In some cases, software download or parameter programming via Volvo dealer tools may be necessary for full functionality.

This is a bare control unit; no wiring harnesses, mounting bolts, crash sensors or airbags are included. Re‑use your original fixings and complete a leak‑free reinstallation following the vehicle manufacturer’s safety procedures for SRS work (disconnecting batteries, waiting the specified time, anti‑static precautions, etc.).

The part was tested on the vehicle prior to disassembly and has been cleaned, labelled and stored in a dry warehouse ready for dispatch. As a genuine Volvo/Continental module it offers correct fit and reliability at a fraction of the new part cost.

Shipping & Returns:
We ship across UK/EU with tracked services. Returns accepted within 30 days; buyer pays return postage. Please inspect upon arrival and message us with any concerns.

Why Buy From Us:
Genuine part, 3-month warranty, fast dispatch, secure packaging.