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16 pin (10+6) Toyota Head Unit proprietary connector layout
16 pin (10+6) Toyota Head Unit proprietary connector
p/n 86431VA640

Pin
Num
Signal Details
A1 FR+  
A2 FL+  
A3 ACC 11-15V when ACC ON
A4 B+ 11-15V constant
A5 FR-  
A6 FL-  
A7 GND Chassis ground
A8 ANT-ON  
A10 ILL+  
B1 RR+  
B2 RL+  
B3 RR-  
B5 ILL-  
B6 RL-  

 

 

Pin
Num
Color Signal
1 IGN 11-15V when IGN ON
2 REVERSE  
3 BRIGHT  
4 VCC  
5 MIC+  
6 DET  
9 CAN+  
10 CAN-  
11 AC-UART (+)  
12 AC-UART (-)  
13 MIC2+  
14 MIC2-  
15 PKB 1V or less at parking ON
17 SPEED pulse signal when tire is rotating
18 SGND  
19 MIC-  
20 TEST  
21 STEERING SW1+  
22 STEERING SW2+  
23 STEERING SW GND  
24 DCM MUTE  
25 FRONT ON  
26 R SIG  
27 R/L SIG  
28 L SIG  

 

5 pin connector, numberingr from left to right.

Pin
Num
Signal
1 GND
2 6V+
3 CA+
4 CA-
5 N/C

 

SWC buttons

Signal Resistance Circuit
none approx 100 kΩ 1
VOL (+) approx 490 kΩ    1
VOL (-) approx 1290 kΩ  1
SEEK (>) less than 1 Ω 1
SEEK (<) approx 160 Ω 1
MUTE approx 2730 Ω 1
none approx 100 kΩ 2
TALK approx 1290 Ω 2
SOURCE less than 1 Ω 2
ON HOOK approx 490 kΩ 2
OFF HOOK approx 160 kΩ 2

 

Omitted pins are Not Connected.

28 pin Nissan Head Unit Aux connector layout
28 pin Nissan Head Unit Aux connector
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