DAELIM VJF125 Service Manual - page 71

EMS(Engine Management System)

5-19

CHECKING THE TPS(Throttle Position Sensor) CIRCUIT DIAGRAM  

Fault code number is displayed by MIL

Checking circuit

The coupler terminal is based on the side of wire-harness

Checking Procedure

1) Turn off ignition key .

2) Check the TPS(Throttle Position Sensor) coupler is loose, or bad.

If there is no defect, measure the input voltage of TPS. 

3) Disassemble the TPS coupler

4) Turn on the ignition key.

Input voltage : 4.5 ~ 5.5[V] 

Measuring terminal : 

ECU NO.18(Gr/B : GRAY/BLACK) ~

ECU NO.4 (W/R : WHITE/RED)

Measure the terminal voltage of TPS’s coupler.

Measuring voltage : 4.5[V] ~ 5.5[V]

Remarks : Measuring unit of voltage : Voltage [V] 

If voltage value is not normal,

Check to see if the ECU coupler  is loose if there is bad contact.

Check the ‘GR/B’’ electric wire, ‘W/R’ electric wire, ‘GR /L’ electric wire to see if they have been

broken or have short- circuited. 

5) If the value of voltage is normal, turn off the ignition key.