HYOSUNG GV250 EI Service Manual page 45

4-1-29 EI SYSTEM DIAGNOSIS
ET sensor resistance
Engine Temp.
-20 ℃ (-4 ℉ )
0 ℃ (32 ℉ )
20 ℃ (68 ℉ )
40 ℃ (104 ℉ )
60 ℃ (140 ℉ )
80 ℃ (176 ℉ )
120 ℃ (248 ℉ )
140 ℃ (284 ℉ )
160 ℃ (320 ℉ )
180 ℃ (356 ℉ )
Tester knob indication : Resistance (
Is the resistance OK?
● Br or GR wire open or shorted to
ground, or poor
connection of ECU coupler.
● If wire and connection are OK,
YES
intermittent trouble or faulty ECU.
● Recheck each terminal and wire
harness for open circuit and poor
connection.
Replace the ET sensor with a new
NO
one.
Resistance (To ECU)
㏀
Approx. 75.5
㏀
Approx. 28.7
㏀
Approx. 12.2
㏀
Approx. 5.6
㏀
Approx. 2.8
㏀
Approx. 1.5
㏀
Approx. 0.5
㏀
Approx. 0.3
㏀
Approx. 0.2
㏀
Approx. 0.13
㏀ ㏀
)
or
G1 C4
44
G1
ECU Coupler
C4