Daelim VJF250 service manual.pdf - Mojo
Daelim VJF250 service manual.pdf - Mojo
Daelim VJF250 service manual.pdf - Mojo
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EMS(Engine Management System)<br />
15.CHECKING OF ENGINE SPEED SIGNAL(ESS)CIRCUIT<br />
Fault code number is displayed by MIL<br />
CHECKING CIRCUIT<br />
TACHOMETER<br />
ECU<br />
32 : ESS(ENGINE SPEED SIGNAL)<br />
Coupler terminal is based on the side of Wire-Harness.<br />
CHECK PROCEDURE<br />
1) Turn off the ignition key .<br />
2) Check the ESS coupler is loose, or bad.<br />
If there is no problem, check the resistance of tachometer.<br />
3) Check the resistance between each terminals and ground.<br />
Measuring terminal: B electric wire ~ EARTH,<br />
ECU NO. 32 (B/Y:BLACK/YELLOW) ~ EARTH<br />
The resistance between each terminals and ground : ∞[ ]<br />
If the measured resistance value is abnormal, replace the part with new one.<br />
Refer to ( ) for assembly and disassembly<br />
Remark : Measuring unit of voltage : Resistance [ ]<br />
4) If the measured resistance and continuity are abnormal,<br />
. Replace the tachometer with new one, and it rechecks.<br />
5) If the resistance and continuity are normal, contact the tachometer coupler.<br />
6)Turn on the ignition key.<br />
7) Measure the voltage or tachometer of wire harness for ECU check.<br />
Measuring terminal: B electric wire ~ G electric wire => Output Voltage: battery voltage<br />
Measuring terminal: ECU No. 32(B/Y: BLACK/YELLOW) ~ G electric wire =>Output voltage: 9[V]~15[V]<br />
Measuring terminal: ECU No. 32(B/Y: BLACK/YELLOW) ~ G Measuring the output voltage of<br />
electric wire, using the PVA(peak voltage adapter) multi-tester tool.<br />
Remark : Measuring unit of voltage : Voltage[V]<br />
If the measured voltage is normal,<br />
Check the ‘B/Y’ electric wire, ‘B’ electric wire, ‘G’ electric wire to see<br />
if they have been broken or have short- circuited if there is a bad<br />
contact of terminal No. 32 of ECU coupler.<br />
If there is no problem in wires, ECU has is broken.<br />
Replace the ECU with new one, and recheck it.<br />
If the measured voltage is abnormal,<br />
Check the ‘B/Y’ electric wire, ‘B’ electric wire, ‘G’ electric wire to see if they have been<br />
broken or have short- circuited.<br />
8) After fault repaired, To erase the memorized fault code in the ECU is refer to how to remove the fault code(5-11)<br />
5-36
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