HYOSUNG 2010 ST7 Service Manual page 152

4-45 EI SYSTEM DIAGNOSIS
Are the resistance and continuity OK?
● GW wire open or shorted to
ground, or poor
ECU coupler.
● YL coupler open or shorted to the
wiring harness.
YES
● If wire and connection are OK,
intermittent trouble or faulty ECU.
● Recheck each terminal and wire
harness for open circuit and poor
connection.
Replace the purge control valve with a
NO
new one.
G2 connection of
Gray
ECU Coupler
(California model only)
Black