1J-3 Charging System:
Battery Runs Down Quickly
B649G11A04001
Troubleshooting
Step Action Yes No
1 Check accessories which use excessive amounts of
electricity.
Are accessories being installed?
Remove accessories. Go to Step 2.
2 Check the battery for current leakage. Refer to “Battery
Current Leakage Inspection: ”.
Is the battery for current leakage OK?
Go to Step 3. • Short circuit of wire
harness
• Loose or
disconnected wires
• Faulty battery
3 Measure the charging voltage between the battery terminals.
Refer to “Regulated Voltage Inspection: ”.
Is the charging voltage OK?
• Faulty battery
• Abnormal driving
condition
Go to Step 4.
4 Measure the continuity of the stator coil and rotor coil. Refer
to “Generator Parts Inspection: ”.
Is the continuity of the stator coil and rotor coil OK?
Go to Step 5. • Faulty stator coil
• Disconnected lead
wires
5 Inspect the slip rings and brushes. Refer to “Generator Parts
Inspection: ”.
Is the slip rings and brushes OK?
Go to Step 6. Faulty slip ring(-s) and/
or brush(-es)
6 Inspect the rectifier and IC regulator. Refer to “Generator
Parts Inspection: ”.
Is the rectifier and IC regulator OK?
Go to Step 7. Faulty rectifier and/or IC
regulator
7 Inspect wirings.
Is the wirings OK?
Faulty battery • Short circuit of wire
harness
• Poor contact of
couplers
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