The G4X TTLink ECU receives the following information over the vehicles CAN (Controller Area Network). This information is received via the ECUs CAN2 port.

 

CAN Channel

Function

CAN DI 1 Frequency

LF wheel speed

CAN DI 2 Frequency

RF wheel speed

CAN DI 3 Frequency

LR wheel speed

CAN DI 4 Frequency

RR wheel speed

Controls Runtime directly

Steering wheel position (some)

Controls Runtime directly

Steering rate (some)

 

An additional CAN1/RS232 connector can be found on the ECU:

 

CAN bus 1 uses a 5 pin connector and is labeled on the ECU as 'CAN 1/RS232'.

If using this connector for CAN ensure the cable being used doesn't have Serial wires connected as this can act as an aerial and prevent USB communications from working.

 

CAN 1/RS232 Connector

Pin

Function

Colour

1

Comms GND

Brown

2

CAN1 L

Green

3

CAN1 H

White

4

RS232-RX

Grey

5

RS232-TX

Yellow