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4-21 FI SYSTEM DIAGNOSIS
◈ Step 2
1) Turn the ignition switch "
2) Measure the WT sensor resistance. (Refer to page
6-8 for details.)
WT sensor resistance
Engine Coolant Temp.
0 ℃ (32 ℉ )
20 ℃ (68 ℉ )
40 ℃ (104 ℉ )
60 ℃ (140 ℉ )
80 ℃ (176 ℉ )
Tester knob indication : Resistance (
Is the voltage OK?
● G or BW wire open or shorted to
ground, or poor ⑧
● If wire and connection are OK,
intermittent trouble or faulty ECU.
YES
● Recheck each terminal and wire
harness for open circuit and poor
connection.
Replace the WT sensor with a new
NO
one.
" (OFF) position.
Resistance (To ECU)
㏀
Approx. 5.790
㏀
Approx. 2.450
㏀
Approx. 1.148
㏀
Approx. 0.586
㏀
Approx. 0.322
㏀ ㏀
)
or ⑤
connection.
⑧
ECU Coupler
⑤
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