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20 pin Nissan Head Unit Audio main connector layout
20 pin Nissan Head Unit Audio main connector
p/n 28185-3KA1A

Pin
Number
Pin Description Function Wire
Color
2 FL+ front door speaker and instrument panel tweeter Audio output SB
3 FL-  front door speaker and instrument panel tweeter  Audio GND V
4 RL+ rear door speaker   Audio output BR
5 RL-   rear door speaker   Audio GND Y
6 SWA+

Steering switch signal A
Press SOURCE switch 0V
Press next up switch 1.0V
Press next down switch 2.0V
Press ENTER switch 4.0V
Except above 5.0V

  Input Y
15 SWA-   Steering switch signal A   SW GND G
7 ACC   ACC power supply  Input P
8 Ill-  Illumination control signal    
9 Ill+  Illumination control signal   Headlamps ON, Battery voltage R
11 FR+ front door speaker and instrument panel tweeter   Audio output BR
12 FR- front door speaker and instrument panel tweeter   Audio GND Y
13 RR+ rear door speaker   Audio output L
14 RR- rear door speaker   Audio GND SB
15 SWB- Steering switch signal B Input G
16 SWB+ Steering switch signal B
Press Vol Down switch 0V
Press Vol Up switch 1.0V
Press Back switch 3.0V
Press DISP switch 4.0V
Except above 5.0V
Input BR
19 GND Battery power supply Ground Y

 

Pin
Number
Pin Description Function Wire
Color
21   AV communication signal
(L)
Input/
Output
LG
22   AV communication signal
(H)
Input/
Output
SB
33   Antenna amp. ON signal Output, Battery Voltage B
34   AM - FM main Input B
35   FM sub Input B

 

Display Unit

 

Pin
Number
Pin Description Function Wire
Color
1   AV communication signal
(L)
Input/
Output
LG
2   AV communication signal
(H)
Input/
Output
SB
3 GND Ground   B
8 Acc ACC power supply Input P
9 Bat Battery power supply Input Y
10 Ill+ Illumination control signal, 
Headlamps ON - Battery voltage
Input R
11 Ill- Illumination control signal   B
12 pin Nissan NDS CD Changer connector layout
12 pin Nissan NDS CD Changer connector
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Additional connector №3

12 pin Nissan Head Unit connector layout
12 pin Nissan Head Unit connector
Nissan Pathfinder (2013-2017) Head Unit visual pinout:click to enlarge
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