For Vehicles Equipped With Multiple Knocking Signal Wires; With The Ignition Switch On - APEXi S-AFCII (SAFC 2 Wiring Diagram

■Installation (cont.)

※For vehicles equipped with multiple knocking signal wires

Connect only the power wire, ground wire, engine rpm signal wire, and throttle signal wire
and proceed to the following operations.
For connecting the knocking signal wire, perform this work separately according to the
following procedure
Connect the power wire, ground wire, engine rpm signal wire, and throttle signal wire
Connect the airflow or pressure signal wire
Make checks after completion of installation

With the ignition switch ON

●
Check the display screen of the SAFC II
● Check for any abnormal noise or abnormal smell from the SAFC II and the vehicle
Perform sensor type and sensor number setting, number-of-cylinders setting, throttle
sensor voltage checking, throttle sensor type setting, and throttle learning according to
"Initial Setup" on page 13 in the separate Instruction Manual
After the initial setup (except knocking signal correction) is completed and the engine is
ready to start, check the sensor output value of each knocking sensor signal by referring
to the sensor check items on page 52 in the Chapter pertaining to "etc. Mode". Perform
wiring to the sensor signal wire with the highest output value. If there is only a small
difference among output values, increase the rpm speed from idling to 2000 rpm. Make a
comparison under this condition. If there is no difference, make a connection to knocking
signal 1.
Page 6 in this docu-
Page 7 in this document
Page 10 in this document
Page 10 in this document
11