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MOUNTING TEMPLATE
SurLok terminals installed
SurLok terminals not installed
14
IGN 1
IGN 2
IGN 3
IGN 4
IGN 5
IGN 6
IGN 7
IGN 8
Ensure the High Current Output (8A or 25A) used to
power the ignition coils is capable of supplying the
required current.
HCO
NOTE: The coils depicted in this diagram (HT-020102)
have internal ignitors. Do not connect ignition outputs
directly to coils unless they have internal ignitors.
This will damage the ECU. If your coils are without
Example wiring connection
internal ignitors you must use an external ignitor.
(Direct Fire Ignition wiring shown)
Ignition Outputs
Ignition outputs must be connected directly to
an ignition module to control the ignition of the
vehicle.
Do not connect directly to a coil without an internal
or external ignition module as doing this will
DIRECT FIRE IGNITION
damage the ECU.
WIRING SHOWN
The ECU ignition output produces a signal between
12V and ground to control the ignition module
WARNING
allowing the charging and firing of the coil.
THE COILS DEPICTED IN THIS DIAGRAM
When not used for ignition, pins can be used as
(HT-020102)
HAVE INTERNAL IGNITORS
generic Digital Pulsed Outputs (DPO) capable of
DO NOT CONNECT IGNITION OUTPUTS
switching 3A to ground.
DIRECTLY TO COILS UNLESS THEY
HAVE INTERNAL IGNITORS
Specs:
T
HIS WILL DAMAGE THE
ECU.
• Software selectable global 12V or 5V
PLEASE USE AN EXTERNAL IGNITOR FOR
pull-up Voltage
COILS WITHOUT INTERNAL IGNITORS
• Individual software selectable 270R
pull-up Enable
• Flyback protected
• 3A sink current
• 10kHz switching speed
• Automatic overcurrent protection
• 0 to 27V voltage feedback
WARNING
Connecting the ECU to an ignition module before
setting the ignition firing edge correctly may
damage the module and coils, therefore it is
advised to disconnect the module or disable the
power to the ignition system until the unit has
been setup and configured.
15
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