IQ3 Data Logger Dash Installation Manual
18
Pin
Position
Description
Color
Function / Wiring
17
CAN High
Yellow
CAN High for ECU connections if applicable
18
Cooling Fan
Violet/White
RELAY REQUIRED
(Do Not Connect to Fan Directly)
Optional, if a cooling fan control is desired.
Connect to the negative side of cooling fan
relay; typically pin 86 on a standard
automotive relay.
This output controls ground to the circuit
when cooling fan on/off value is met.
750mA ground sink maximum
See the
Cooling Fan Wiring Diagram
below
19
Sensor 5v output
(not used)
N/A
Not used for factory supplied sensors.
Optional, available to supply regulated 5
volts out for aftermarket sensors.
Short circuit protected, 50mA max
(shared between all Sensor 5v outputs)
20
Sensor ground
(not used)
N/A
Not used for factory supplied sensors.
Optional, available to supply ground for
aftermarket sensors.
21
Not Used
N/A
22
Sensor 5v output
(not used)
N/A
Not used for factory supplied sensors.
Optional, available to supply regulated 5
volts out for aftermarket sensors.
Short circuit protected, 50mA max
(shared between all Sensor 5v outputs)
23
Coolant Temp
Sensor ground
Black
Connect to the supplied water temperature
sensor
24
Coolant Temp
Signal
Clear
Connect to the supplied water temperature
sensor
25
CAN Low
Green
CAN Low for ECU connections if applicable
26
Battery Ground
Black
Connect this input to a battery ground
27
Ground
(not used)
N/A
Not used for factory supplied sensors.
Optional, available to supply ground for
aftermarket sensors.