Haltech HT053009 User Manual
Page 5
The
Haltech CAN Network
The Haltech CAN network allows for simple and effective expansion in ECU capability
and functionality without having to go to the trouble of wiring in a whole new computer.
Expansion is made possible by the addition of multiple expansion devices that
communicate to the main ECU via a Control Area Network (CAN).
Installation time and costs are kept to a minimum as all expansion devices are
powered up from the main ECU via the pre-terminated connection cable that comes
with each expansion device.
Simply connect the device directly to the 8 pin CAN connector on the rear of the ECU
or connect using an optional Haltech CAN Hub (order as part # HT059990) if multiple
expansion devices are required.
Each expansion device is pre-programmed with a unique ID code which allows it to
be recognised on the network and work correctly every time.
For current available expansion devices please go to our website at
Figure 16 – Haltech ECU connected to a Racepak Dash
Figure 17 – Haltech ECU connected to 5 Auxiliary CAN based devices
Patch Harness Auxiliary Connectors
The Platinum Pro R35 GT-R patch harness incorporates the following auxiliary
connections allowing the user to control external devices and to use non factory fitted
sensors. Auxiliary connectors are outlined below.
Please note wiring colour variations may occur.
Auxiliary Rev Limiter
The ECU has an Auxiliary Rev Limiter that can be configured via ECU Manager in the
Main setup “Inputs / Outputs” tab.
The Auxiliary Rev Limiter input connector can be found on the 2 position AMP connector
fitted to the patch harness.
To activate the Auxiliary Rev Limiter, connect the Auxiliary Rev Limiter input to the
ground wire. The wiring for this connector is below.
Figure 2 – Auxiliary Rev Limiter 2 position AMP Connector wiring
General Purpose Output
The ECU has a General Purpose Output that can be configured via ECU Manager in
the Main setup “Inputs / Outputs” tab.
The General Purpose Output can be found on the 3 position AMP connector fitted to the
patch harness.
When the output is activated by the ECU the output will switch to ground. Solenoid
valves and shift lights etc can be run directly from the output, however high current
devices such as thermo fans and additional fuel pumps must be activated through a
relay. This way the output is only switching the relay and not a high current draw device.
The General Purpose Output is limited to 800mA Max current draw.
The wiring for this connector is below.
Figure 3 – General Purpose Output 3 position AMP Connector wiring