Toyota 86120 Wiring Diagram Pdf

Most Toyota 86120 amps have two main connectors:

| Pin | Wire Color | Signal Name | Function | | :--- | :--- | :--- | :--- | | A-1 | Blue/Red | +B | Battery power (fused) | | A-2 | White/Black | GND | Ground (chassis) | | A-3 | Red/Black | IG | Ignition switch ON signal | | A-4 | Yellow/Green | BLW | Blower motor control (to power transistor) | | A-5 | Gray | MGC | Magnetic clutch relay control | | B-6 | Green/White | TAM | Ambient temp sensor (thermistor return) | | B-7 | Pink | S5 | Evaporator temp sensor signal | | B-10 | Blue | M-1 | Mode servo motor (defrost/vent control) | Toyota 86120 Wiring Diagram Pdf

In this guide, we will break down what the 86120 unit does, where to find its official wiring diagram, how to read the pinout, and how to use the diagram to fix common issues. Most Toyota 86120 amps have two main connectors:

| Function | Typical Wire Color | Location on 20-pin plug | | :--- | :--- | :--- | | | Blue-Red or White-Red | Pin 1 or A | | Accessory (Switched) | Gray | Pin 2 or B | | Ground | White-Black or Brown | Pin 10 or C | | Front Left (+) / (-) | Pink / Purple | Pins 11 & 12 | | Front Right (+) / (-) | Light Green / Blue | Pins 13 & 14 | | Rear Left (+) / (-) | Black / Yellow | Pins 15 & 16 | | Rear Right (+) / (-) | Red / White | Pins 17 & 18 | | Subwoofer (+) | Light Green / Black | Varies (often separate 4-pin plug) | | Mute / AMP-ON | Pink-Blue | Pin 7 or 8 | how to read the pinout