Haltech HT045666 - Manual (Page 9)

Starter Signal (STS)
The Starter Signal connects directly to the starter motor solenoid.
This will supply 12V to the solenoid on receiving a start signal from the ignition switch
when in the start position.
Please ensure you supply a main power connection to the starter motor and a
main earth strap to the engine to ensure correct operation of the starter motor,
and to avoid damage to your terminated harness and ECU.
Spare Digital Pulsed Output (DPO-4)
The Spare DPO connector contains one Digital Pulsed Outputs (DPO 9),
and one +12V DC Switched Power.
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. A Relay can be wired between the DPO and the supplied +12V DC on
this connector. This way the output is only switching the relay and not a high current
draw device.
The Digital Pulsed Outputs are limited to 800mA Max current draw.
These outputs can be programmed within the ECU Manager Software to control
auxiliaries such as:
• Air Con Output
• Aux Fuel Pump
• Boost Control
• ECU Diagnostic Light
• Intercooler Fan
• Shift Light
• Thermo fans
• Reverse Lockout Solenoid Valve
For a full list of output options and explanations please go to the help within the
ECU Manager Software.
Engine Coolant Temperature Sensor (ECT)
The Engine Coolant Temperature Sensor input connects directly to the OEM engine
coolant temperature sensor located towards front of the head of the left bank.
The Engine Coolant Temperature Sensor provides the ECU with a signal that allows
the ECU to know the current engine temperature.
Ground (GND)
The Ground cable connects directly to the engine block.
Warning this in NOT the earth cable for the engine, please ensure that you earth the
engine with an earth strap from the block of the engine to the chassis of the car.
Ensure that the chassis of the car is connected to the battery negative (-) terminal with
heavy gauge cable or earthing strap.
Damage to the ECU and or terminated harness may result if this is not done.
Wideband 02 Inputs (02-1 , 02-2)
Wideband 02 sensors accurately measure the Air/Fuel ratio of the Engine which is
required for precise tuning and control of the engine.
Used in conjunction with the Haltech Dual Wideband kit (HT010706) the
Wideband 02 inputs allows for quick and easy installation of the sensors and controller.
Connect your optional Haltech wideband sensors directly to the supplied
connectors labeled 02-1 and 02-2 in the engine bay.
Connect the wideband controller to the allocated corresponding connectors located
near the main ECU connectors labeled O2, O2-1 and O2-2
Your Haltech ECU will now have access to correct Air /Fuel Ratio readings allowing for
more precise tuning and control of your engine.
Wideband Controller Wiring
Red: +12V Supply to Wideband controller
Black: Power Ground (Thick Wire)
Black: Signal Ground (Thin Wire)
Grey/Orange (shielded): O2 Input 1
Grey/Yellow (shielded): AVI1 - O2 input 2