C12" Pick-Up Coil Circuit Malfunction - HYOSUNG AQUILA 650 FI Service Manual

4-1-19 FI SYSTEM DIAGNOSIS

"C12" PICK-UP COIL CIRCUIT MALFUNCTION

DETECTED CONDITION
The signal does not reach ECU for more than 2 sec.
after receiving the IAP signal.
▣ ▣ INSPECTION
◈ Step 1
1) Remove the frame cover.
2) Turn the ignition switch "OFF" position.
3) Check the pick-up coil coupler ①
contacts. If OK, then measure the pick-up coil
resistance.
4) Disconnect the pick-up coil coupler ①
measure the resistance.
Pick-up coil resistance
5) If OK, then check the continuity between each
terminal and ground.
Pick-up coil continuity
Tester knob indication : Resistance (Ϊ Ϊ )
Are the resistance and continuity OK?
● L or G wire open or shorted to
ground, or poor ③
● If wire and connection are OK,
YES
intermittent trouble or faulty ECU.
● Recheck each terminal and wire
harness for open circuit and poor
connection.
● Loose or poor contacts on the pick-
up coil coupler or ECU coupler.
NO
● Replace the pick-up coil with a new
one.
for loose or poor
and
110 ~ 140 Ϊ
(G - L)
∞
Ϊ
(Infinity)
(G - Ground)
(L - Ground)
or ⑮
connection.
30
POSSIBLE CAUSE
● Metal particles or foreign materiel being attached
on the pick-up coil and rotor tip.
● Pick-up coil circuit open or short.
● Pick-up coil malfunction.
● ECU malfunction.
ECU Coupler
①
③
⑮