Electric Starter Troubleshooting - Honda 2003 NPS50 Ruckus Service Manual

E LECTRIC STARTER
TROU BLESHOOTIN G
Alternator/Starter does not turn (Flywheel does not turn)
1. Fuse Inspection
Check for a blown main fuse (20A) and sub fuses ( 1 0A).
Is either fuse blown?
YES
NO
2. Battery Inspection
Check if the battery is fully charged and is in good condition. Also check that there is no loose termi­
nals or connections.
Is the battery in good condition?
YES
NO
3. Starter Relay Operation Check
With the ignition switch turned to ON, squeeze the brake lever, push the starter switch and checldor
a "Click" sound from the starter relay.
Is a "Click" heard?
YES
NO
4. Battery Ground Circuit Inspection
Check the battery ground circuit at the ECM (page 16-9).
Check for continuity between the Green wire terminals of the wire harness and body ground.
Does continuity exist?
YES
NO
5. Stator Coil Inspection
Check the stator coil resistance at the ECM side (page 1 6-B).
Is the resistance held within the standard?
YES
NO
6. Starter Relay Circuit Inspection
Inspect the starter relay circuit at the ECM (page 18-6).
Is the starter relay circuit in good condition?
YES
NO
7. Starter Relay Inspection
Check the operation of the starter relay (page 1 8-6).
Is the starter relay in good condition?
YES
NO
1 8-4
Replace the fuse.
-
GO TO STEP 2.
-
GO TO STEP 3.
-
Fully charge or replace the battery.
-
GO TO STEP 4.
-
GO TO STEP 9.
-
GO TO STEP 5.
-
Open circuit in the Green wire between the ECM 6P and 26P connector and battery.
-
•
•
GO TO STEP 6.
•
-
Open circuit in the Red/yellow, Red/blue and Red/white wires between the ECM BP con-
-
nector and alternator 3P connector.
Faulty stator coil.
Loose or poorly connected stator related connector.
•
GO TO STEP 7.
-
Open circuit in the Red wire between the ECM 6P connector and starter relay.
-
•
•
GO TO STEP 8. (if from step 6)
-
GO TO STEP 10. (if from step 9)
Faulty starter relay.
-