For Vehicles Using The Karman Type Frequency Sensor - APEXi S-AFCII (SAFC 2 Wiring Diagram

■Installation (cont.)

※For vehicles using the Karman type frequency sensor

Vehicle harness
CAUTION
！
●Be sure to connect the brown wire to the ECU side from the black wire
Failure to do so may cause this product to function improperly, thereby causing damage
to the product and the engine.
WARNING
！
●Mount the SAFC II so that it does not interfere with driving.
Normal driving operations may be prevented, resulting in an accident.
●Do not install the SAFC II in a high-temperature place or in a location
where it may come in contact with water.
An electric shock/fire may be caused. This may cause damage to the product and
vehicle.
●When routing the connecting harness of the SAFC II, route the harness
away from moving parts.
The connecting harness may be cut or short-circuited.
The SAFC II will be damaged, thereby causing damage to the vehicle and other electric
parts.
ECU
Red wire (power supply)
Green wire (rpm signal)
Purple wire (knocking signal)
Gray wire (throttle signal)
Brown wire (ground)
Black wire (ground)
Pink wire (airflow signal output)
Orange wire (airflow signal input)
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