Haltech HT041208 - Manual (Page 13)

AVI Harness
The AVI harness connector comprises of the following connections
• Signal Ground (B/W)
This wire supplies a Signal Ground
• AVI 1 & AVI 2 ( GY/Y & O/B)
Analogue Voltage Inputs accept variable voltage inputs from 0V to 5V.
These inputs can also accept switch inputs that change between two different voltage
levels. The on voltage and off voltage define what the thresholds are between the on
and off states. The voltage can be viewed as a channel in the software to determine the
thresholds for a switched input.
• Switched 12V DC Supply (GY/R)
This wire supplies an ignition switched 12V DC supply
Figure 4- AVI Connector Pinout
Fuel Pump Relay Control
The Fuel pump relay control harness comprises of the following wire connections
• Fuel Pump Relay Control (B/Y)
This output controls the fuel pump relay, and should be connected to the coil of the
fuel pump relay. When activated by the ECU the output will switch to ground.
• Switched 12V DC Relay Supply (GY/R)
This wire supplies an ignition switched 12V DC supply, this can be used to power
the positive side of the fuel pump relay. This wire is not to be used to supply power
to the fuel pump.
Figure 5 - Fuel Pump Relay Control Harness
*Ignition Output Identification
The outputs of the Ignition Harness can be identified by the coloured stripe on
the yellow wires, Please see figure 14 below:
Figure 14 – Haltech Ignition Looms Output Colour Guide