Meaning of Head Unit pinout signals
| Pin Notation |
Pin function |
|---|---|
Power pins |
|
| +Ub | Battery+ (12V direct from Battery). |
| GND, GROUND | Chassis Ground |
| S-kont | Ignition powered. +12 V with the ignition key is in the ACC or ON position. |
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 |
|
| Amp, ATX+, ATX- | Amplifier control |
| DATA, CLK | Head unit communication |
| Alm |
anti-theft alarm system |
| SWC | Steering wheel buttons control |
| CAN-L, CAN-H | CAN on board diagnostic bus |
correct
incorrect