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Trip computer

Pinout

  • 12v - 12V from the battery
  • gnd - ground
  • dim - dimmer
  • btn - button
  • spd - speed sensor
  • kl - K-line direct to the ECU

Info

The display activates when there is activity on the k-line. As a result, you should not connect other devices to this line or link this wire to the on-board network. If you do, the display will not turn off when the ignition is switched off. The display will remain active if the KLINE cable is connected to the car.

Warning

The K-Line wire connecting the display to the ECU should be routed away from the high-voltage coil and associated wiring.

Installation

Disassemble the dashboard (the photo shows a dashboard from an A6 C4).

cut 5mm here

insert the display

display should flush into the case

secure PCB and wires with a sealant or glue

Cut the plastic cap

Install the red filter instead (first, remove protective film from both sides)

Connection to Audi 100 (а6с4)

Red connector:

  • 7 - speedometer
  • 10 - ground
  • 14 - +12v
  • 17 - dimmer

Green connector:

  • 2 (was not used) - K-line
  • 8 (was not used) - button

Connect a wire from pin 2 of the green connector to the K-line of the Invent ECU.

Connection to Audi 100 C3 before restyling

Black connector T26:

  • 2 - speedometer out
  • 10 - ground
  • 1 - +12v
  • 5 - dimmer

Remove the protective film from the display.

Place the black sticker mask on top.

Then, assemble the dashboard

Button

If the wiper switch lacks a stock button, you can install a pushbutton instead.

For a 4-pin pushbutton, solder the wires diagonally to pins 1 and 3. Connect the first wire to the green connector at pin 2 of the dashboard, and the second wire to the ground. It is advisable to install the button into the wiper switch and secure it with glue or sealant.

The result

Dashboard pinout Audi 100 (а6с4)

Dashboard pinout Audi 100 C3 restyling

Basic dashboard (without additional gauges)

Black connector T26:

  • 1 +12 V for clock – red - blue
  • 2 speedometer signal – white-blue
  • 3 fuel level – purple - black
  • 4 speed sensor signal from gearbox – brown - red
  • 5 dashboard backlight – gray - blue
  • 6 high beam lamp – blue - white
  • 7 parking brake lamp – gray - yellow
  • 8 hazard lights lamp – blue - green
  • 10 ground – brown
  • 11 +10 V – black - blue
  • 12 turn signal right – black - green
  • 15 +12 V to the backlight regulator – gray - green
  • 25 turn signal left – black - white
  • 26 from hazard lihts – brown - white