InCarTec 39-MB Mercedes CANbus steering control interfaces User Manual

InCarTec 39-MB Mercedes CANbus steering control interfaces

Mercedes CANbus steering control interfaces

39-MB- CANbus steering wheel control interfaces retain the use of the audio steering wheel controls and also provide CAN ignition, reverse gear, illumination, parking brake and speed pulse output signals. These interfaces come with different fitting harnesses depending on the original connectors in the vehicle. Make sure you have the interface with the correct harness for the vehicle.

Set up the patch lead

The 4 pin patch lead connector diagrams above are viewed from the wire entry side of the connector.

Set the switches

The switches on the interface need to be set according to the brand of radio and vehicle model. Open the black box and set the switches.
See the tables below for the switch settings. Switches 1-4 relate to the brand of head unit and switched 5-8 relate to the model of car.

If the vehicle specific setting does not work, use the “all other model” setting.

1. 2 pin connector on the CANbus interface 1 – BLACK ground
2.  Not connected
3.  ORANGE illumination
4. GREEN reverse gear output
5.  Not connected
6.  WHITE/BROWN Can low input
7.  YELLOW +12V input
8. GREY Handbrake output
9.  RED ignition output
10. WHITE speed pulse output
11. Not connected
12.  WHITE/YELLOW Can high input

Mercedes Car wiring diagrams

Audio 5
A, B, Vito, Sprinter
4- +12V
5- Antenna turn on
6- CAN HIGH-Brown/Red in car
7- CAN LOW– Brown in car
8- GROUND

Audio 10 / APS30
C (W203) 01-04) CLK(W208)
1- CAN LOW- Brown in car
2- CAN HIGH- Brown/Red in car

Audio 20 NTG 1
CLS, SLK & E (W211)
B8- CAN LOW- Brown in Car
B7- CAN HIGH- Brown/Red in Car
B9- Antenna turn on
15- GROUND
16- +12V

Audio 20 NTG2
A , B, C, M, GL, Vito, Viano, SL (06>) Sprinter
9- CAN LOW- Brown in car
11- CAN HIGH- Brown/Red in car
12- GROUND
13- Antenna turn on
15- +12V

On Mercedes Command cars with NAV Connect to pin 17 CAN LOW and pin 18 CAN HIGH on the 18 way command Connector
If there is no AUDIO menu on the car, then the car needs to be reset by a Mercedes dealer with Star diagnoses Go to Menu Item “Configure control Unit” “Read and Change Coding” “General Parameters” and set the options to “audio unit active” For Audio20 NTG1 and NTG2 cars only. On some of these cars it may be necessary to configure the interface to work correctly with the cars Menu System.

SWITCH LIGHTS TO AUTO MODE

• turn the key to ignition and switch on the aftermarket head-unit or navigation system
• acknowledge any error messages on the on board computer-move to audio menu( menu up button until audio appears on display)
• push and hold “end call” button on the steering wheel until the aftermarket radio switches to “night mode”
• push menu up button again until audio is again in the display
• push and hold “ end call” button again until the aftermarket radio switches back to day time

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