Engine Control Module (Ecm) System Inspection; Regulator/Rectifier Circuit Inspection - Honda 2003 NPS50 Ruckus Service Manual

ENGINE CONTROL MODULE ( ECM)
SYSTEM INSPECTION
Remove the inner cover {page 3-5).
Turn the ignition switch to OFF.
Disconnect the ECM 26P connector.
Check the connector for loose contacts or corroded
terminals.
Check the following at the harness side connector
terminals.
BATTERY LINE
Measure the voltage between the Red wire terminal
and ground.
There should be battery voltage at all times.
If there is no voltage, check for a blown main fuse
(20A) and an open or short circuit in the wire har­
ness.
GROUND LINE
Check the continuity between each Green wire ter­
minals and ground.
There should be continuity at all time.
If there is no continuity, check for an open or short
circuit in the wire harness.
NOTE:
•
REGULATOR/RECTIFIER CIRCUIT
INSPECTION
The regulator/rectifier is located in the ECM.
Turn the ignition switch to OFF.
Remove the inner cover {page 3-5).
Disconnect the ECM 6P connector.
Check the connector for loose contacts or corroded
terminals.
BATTERY/CHARGING SYSTEM
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