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16 pin (10+6) Toyota Head Unit proprietary connector layout
16 pin (10+6) Toyota Head Unit proprietary connector
also TM6000 CR, 6200, 15402, 55401 (p/n: 86120-2b480), 57101, 57404, 2619, 89106

Head unit pinout signals explained

Pin function

Power pins

B+ 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.
ILL 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
Lin Line out
FR- or RF-, FL- or LF-, RR-, LR- or RL-, SGND The corresponding speaker ground

Misc. pins

MUTE This pin is used to silence the audio, earthed by some other external components that is connected to the radio.
Amp Amplifier control
RSR+.RSR-,RSL+, RSL- Audio Signal to Rear Audio Controller, For Wireless Headphones
TX+, TX- Display communication??
SW1 Seek+/-, Vol+/- Inputs from Steering wheel audio controls
SW2 Mode input from Steering wheel audio controls
RMU Mute Signal to Rear Audio Controller, Logical 1 when Radio Switch is On



1-Speaker FR+

1-Speaker RR+

2-Speaker FL+

2-Speaker RL+

3-ACC +B

3-Speaker RR-

4-BU +B


5-Speaker FR-


6-Speaker FL-

6-Speaker RL-



8-antenna +B




10-iLL +B



According to 1 reports in our database (1 positive and 0 negative) the Toyota 1994-1996 Carina , Corona, Hiace Head Units pinout should be correct.

Is this pinout
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