Clock Spring – Toyota Hilux – 2005-2015 – 843070K020

This direct-fit airbag clock spring (slip ring / sensor coil) restores reliable airbag function and steering wheel controls on the Toyota Hilux Clock (2005–2015). Built to OEM specification and matching part numbers 84307-0K020, 84306-0K050, 84306-0K051 and 84307-0K0.

Common signs of failure

A failing clock spring or spiral cable typically triggers the SRS airbag warning light, disables the horn, and stops steering wheel audio, cruise and phone buttons from working. Some vehicles will also flag fault codes around the airbag module (e.g. B0014, B0028). Left unrepaired, the airbag and seatbelt pre-tensioner connections may not signal correctly in a collision — making this a safety-critical replacement and an automatic MOT fail in the UK.

Fitment notes

Plug-and-play installation, no diagnostic coding required after fitting. Multiple OEM variants exist for some platforms, so cross-checking your existing part number against those listed above is the quickest way to confirm fit. If your steering angle sensor is mounted on the clock spring, you may need to transfer it across — check your old unit before disposing of it. Position: Steering Wheel.

Frequently asked questions

What does a clock spring do?

It's the coiled ribbon cable inside the steering column that carries electrical signals between the steering wheel and the rest of the vehicle — keeping the airbag, horn, and steering wheel buttons connected as the wheel turns through its full lock-to-lock travel.

Can I drive with a faulty squib / clock spring?

The car will drive normally, but the SRS airbag system is disabled and steering wheel button functions may fail. UK MOT inspectors check for active SRS warning lights, so a faulty clock spring will fail your MOT.

Do I need to code or program this part?

No — direct plug-and-play. No diagnostic tool, VAG-COM, Techstream or BMW INPA coding required after fitting. Just centre the wheel before installation.