6 - 8
–
+
ELEC
TPS (THROTTLE POSITION SENSOR) SYSTEM
EC624000
COUPLERS AND LEADS CONNECTION
INSPECTION
1. Check:
●
Couplers and leads connection
Rust/dust/looseness/short-circuit
→
Repair or replace.
TPS COIL INSPECTION
1. Inspect:
●
TPS coil resistance
Out of specification
→
Replace.
2. Loosen:
●
Throttle stop screw
NOTE:
Turn out the throttle stop screw until the throt-
tle shaft is in the full close position.
Tester (+) lead
→
Blue lead
1
Tester (–) lead
→
Black lead
2
TPS coil
resistance
Tester selector
position
4 ~ 6 k
Ω
at
20 ˚C (68 ˚F)
k
Ω
×
1
3. Inspect:
●
TPS coil variable resistance
Check that the resistance in increased
as the throttle grip is moved from the
full close position to the full open posi-
tion.
Out of specification
→
Replace.
Tester (+) lead
→
Yellow lead
1
Tester (–) lead
→
Black lead
2
TPS coil variable
resistance
Tester selec-
tor position
Full closed Full opened
k
Ω
×
1
0 ~ 2 k
Ω
at
20 ˚C
(68 ˚F)
4 ~ 6 k
Ω
at
20 ˚C
(68 ˚F)
Summary of Contents for WR426F(N)
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