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16 pin (10+6) Toyota Head Unit proprietary connector layout
16 pin (10+6) Toyota Head Unit proprietary connector
at the audio unit
Pin
Number
Pin
Name
Description wire color
A1 FR+ Sound signal (Front right) LG
A2 FL+ Sound signal (Front left) P
A3 ACC1 Power source (ACC) GR
A4 +B1 Power source (+B) Always 11 to 14 V SB
A5 FR- Sound signal (Front right) L
A6 FL- Sound signal (Front left) V
A7 GND1 Body ground BR
A10 ILL+ Illumination signal G
B1 RR+ Sound signal (Rear Right) R
B2 RL+ Sound signal (Rear left) B
B3 RR- Sound signal (Rear right W
B5 ILL- Illumination signal W
B6 RL- Sound signal (Rear left) Y

 


28 pin Head Unit connector

 

 

Pin
Number
Pin
Name
Description wire color
1 IG Power source ( Ignition switch ON => 11 to 14V) G
2 REV Reverse signal R
3 ADIM Illumination (auto dimmer) signal ( Ignition switch ON, automatic light control sensor covered by hand, and light control switch in  auto position => 11 to 14V)
 
W
4 MACC Microphone power supply (Ignition switch ON => 4 to 6 V) B
5 MIN+ Microphone voice signal W
6 SNS2 Ground W-B
9 CANH CAN communication signal V
10 CANL CAN communication signal W
11 AGND Body ground  
12 SG Shield  
13 VV+ Video signal B
14 VV- Video signal W
15 PKB Parking brake signal G
17 SPD Vehicle speed signal from combination meter assembly V
18 SGND Shield ground  
19 MIN- Microphone voice signal R
21 SW1 Steering pad switch signal 
No switch pushed 2.97 to 3.56 V
Up switch pushed 0.27 to 0.35 V
Up switch pushed 0.86 to 1.03 V
Volume+ switch pushed 1.51 to 1.79 V
Volume- switch pushed 2.22 to 2.66 V
Y
21 SW2 Steering pad switch signal
No switch pushed 2.97 to 3.56 V
MODE/HOLD switch pushed 0.27 to 0.35 V
On hook switch pushed 0.86 to 1.03 V
Off hook switch pushed 1.51 to 1.79 V
Voice switch pushed 2.22 to 2.66 V
G
23 SWG Steering pad switch signal ground V
25 ADPG External device connection detection signal ( External device not connected => 2.1 to 3 V) G
26 VAR+ Sound signal (Right) external device B
27 VA- Sound signal ground W
28 VAL+ Sound signal (Left) external device  

 

 

 

Pin
Number
Pin
Name
Description wire color
3 CNH1 Local bus communication signal B
4 CNL1 Local bus communication signal W
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Toyota Hilux (2015-2018) Head Unit visual pinout:click to enlarge
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