6-9
TPS (THROTTLE POSITION SENSOR) SYSTEM
ELEC
EC624000
COUPLERS AND LEADS CONNECTION
INSPECTION
1. Check:
9
Couplers and leads connection
Rust/ Dust/ Looseness/Short-circuit
→
Repair or replace.
EC692000
TPS COIL INSPECTION
1. Remove:
9
Carburetor
9
Mixing chamber top
Refer to “CARBURETOR AND REED
VALVE” section in the CHAPTER 4.
2. Inspect:
9
TPS coil resistance
Out of specification
→
Replace.
3. Inspect:
9
TPS coil variable resistance
Check that the resistance in increased as
the lever
1
is moved from the full close
position to the full open position.
Out of specification
→
Replace.
Tester (+) lead
→
Blue
lead
1
Tester (–) lead
→
Black
lead
2
TPS coil
Tester selector
resistance
position
4~6k
Ω
at
k
Ω ×
1
20°C (68°F)
Tester (+) lead
→
Yellow
lead
2
Tester (–) lead
→
Black
lead
3
Tester selector
position
TPS coil variable
resistance
Full closed
Full opened
Zero~2k
Ω
at 4~6k
Ω
at
20°C (68°F)
20°C (68°F)
k
Ω ×
1
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