In this guide, we will dissect everything you need to know about the 86120 series, from decoding the pinout to troubleshooting common electrical issues.
The manual will show two perspectives. One is looking into the back of the radio (pins facing you). The other is looking at the harness plug (wires going away from you). They are mirrored. Always wire based on the harness side.
Most Toyota Fujitsu Ten units, including the 86120 series, use the standard Toyota dual-connector setup for power and front/rear speakers. 10-Pin Connector (Power & Front Speakers) manual toyota fujitsu ten 86120 wiring diagram
With these details, I can provide the highly targeted pinout or specific adapter recommendations you need. Share public link
20-Pin Steering Wheel Control & AUX Connector (Modern 86120 Variants) In this guide, we will dissect everything you
Disconnect the negative terminal of your vehicle's battery to prevent short circuits.
Look for three specific pins: SW1 (Signal 1), SW2 (Signal 2), and SWG (Signal Ground). Wiring an aftermarket interface requires splicing into these three lines. The other is looking at the harness plug
If presets erase when the key turns off, Pins 1 (Constant) and 2 (Switched) are reversed.