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●The ground conductor of this product has two branches (black and brown).
This has a very important significance to secure the voltage conversion accuracy.
Connect the ground conductor by referring to the following figure. Installing the
ground conductor in a different way from the connecting method specified by APEX-
ERA will give damage to this product and the mounted car engine.
Correct Connecting Method for the Ground Conductor
Connect the ground conductor to two positions of the same line.
Be sure to connect the brown wire to the ECU side.
Allow a space of 1 cm or more between the connecting point of the black wire
and the connecting point of the brown wire.
Vehicle harness
Wrong Connecting Method for the Ground Conductor
Vehicle harness
Unite the ground
wires into a single
line.
Vehicle harness
Do not connect the
ground conductor
to any position
(e.g. chassis ground)
other than the speci-
fied position.
The above figure explains only the connection of the ground conductor. For the
other signal lines, refer to page 6 and page 7. Be sure to wire the power cable,
ground conductor and other signal lines to the positions specified by APEXERA.
Engine Control
Unit (ECU)
Brown wire (ground)
Black wire (ground)
Engine Control
Unit (ECU)
Brown wire (ground)
Black wire (ground)
Engine Control
Unit (ECU)
Brown wire (ground)
Black wire (ground)
5
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