Lexus and Toyota Head units pinouts  > Toyota pinouts
Model 86120-2B180

Meaning of Head Unit pinout signals

Pin
Notation
Pin function

Power pins

BAT+ Battery+  (12V direct from Battery). 
GND, GROUND Chassis Ground
ACC Ignition powered. +12 V with the ignition key is in the ACC or ON position.
iLLUM Light-on signal or backlight adjustment. +12V supplied to light-on pin of head unit when tail lights ar turned on. May be used for backlight adjustment in some models.
ANT Power for Electric Antenna. Output +12 V (maximum 150 - 300mA) 

Audio pins

FR+ or RF+ Front right speaker out
FL+ or LF+ Front left speaker out
RR+ Rear right speaker out
LR+ or  RL+ Rear left speaker out
FR- or RF-, FL- or LF-, RR-, LR- or RL-, SGND The corresponding speaker ground

Misc. pins

MUT This pin is used to silence the audio, earthed by some other external components that is connected to the radio.
Amp Amplifier control

 

16 pin (10+6) Toyota Head Unit proprietary of Toyota 58402 CQ-YS6020A Head Unit connector layout
16 pin (10+6) Toyota Head Unit proprietary connector
13 pin kenwood e30-0825-05 proprietary of Toyota 58402 CQ-YS6020A Head Unit connector layout
13 pin kenwood e30-0825-05 proprietary connector
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Toyota 58402 CQ-YS6020A Head Unit visual pinout:
Toyota 58402 CQ-YS6020A Head Unit diagram
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