KYMCO UXV 500i Service Manual page 406

13. FUEL INJECTION SYSTEM
INSPECTION
Outlook checking
Checking for ECU pin(1-48) if has damage.
Checking for ECU part number if is correct.
3920A-LKC3-E00 is correct
Voltage inspection
Connect the meter (+) probe to the
B4(R/W)wire and the
meter (-) probe to the M3(G/B) wire to
measure the voltage
MAP content (edition issue no.)
Performance confirmed
22-21
UXV500i