Use this article if…
- Deciding between a wired SWC adapter and the PVS wireless module before you order.
- Button mapping setup → Setting up button mapping. MK4 → MK4 steering.
Quick answer
LC70, 80, 100, and 200 Series steering wheels all use two-wire resistor-based controls. The question is whether your headunit can read them directly with a wired adapter, or whether you need the PVS wireless module. When in doubt, the wireless module works with any headunit.
Problem
- You need to know whether your headunit can connect to the steering wheel directly with a wired adapter, or whether you need the PVS wireless module.
Symptoms
- Not sure which product to order before buying.
- Controls not working after a wired adapter was installed.
Cause
- LC70, 80, 100, and 200 Series Land Cruisers all use resistor-based steering controls — two wires from the column. Whether you can use a wired adapter or need the wireless module depends on your headunit, not the vehicle.
Fix Step-by-step
- Your LC70, 80, 100, or 200 Series steering wheel uses two wires — a signal wire and an earth. Each button press sends a different resistance value, which tells the headunit what was pressed. This is the same across all these models.
- Check whether your headunit has a wired SWC input — some aftermarket headunits (Alpine, Pioneer, Sony, Kenwood) have a physical SWC port on the back that can read these signals directly with a wired adapter. If yours has one, check the wiring diagram for your brand from the PDF downloads on the support page.
- If your headunit doesn't have a wired SWC port — or if the controls still don't work after wiring — the PVS wireless module is the solution. It reads the steering wheel signals and transmits them to your headunit wirelessly, so it works with any headunit regardless of what ports it has.
- PVS and Android headunits use the wireless module — if you have a PVS MK4 or an Android-based headunit, the wireless module is the right choice. It comes pre-paired from the factory. All you need to do is wire it in and run the learn sequence in the headunit.