Battery Runs Down Quickly; Repair Instructions; Battery Current Leakage Inspection - Suzuki RMX450Z Service Manual

1J-3 Charging System:

Battery Runs Down Quickly

Troubleshooting
Step
1 Check accessories which use excessive amounts of
electricity.
Are accessories being installed?
2 Check the battery for current leakage. Refer to "Battery
Current Leakage Inspection" (Page 1J-3).
Is the battery for current leakage OK?
3 Measure the regulated voltage between the battery
terminals. Refer to "Regulated Voltage Inspection" (Page 1J-
4).
Is the regulated voltage OK?
4 Measure the resistance of the generator coil. Refer to
"Generator Inspection" (Page 1J-4).
Is the resistance of generator coil OK?
5 Measure the generator no-load performance. Refer to
"Generator Inspection" (Page 1J-4).
Is the generator no-load performance OK?
6 Inspect the regulator/rectifier. Refer to "Regulator / Rectifier
Inspection" (Page 1J-8).
Is the regulator/rectifier OK?
7 Inspect wirings.
Is the wirings OK?

Battery Current Leakage Inspection

Inspect the battery current leakage in the following
procedures:
1) Turn off the ignition switch.
2) Remove the seat. Refer to "Exterior Parts Removal
and Installation" in Section 9D (Page 9D-1).
3) Disconnect the (–) battery lead wire.
4) Measure the current between (–) battery terminal
and the (–) battery lead wire using the multi circuit
tester. If the reading exceeds the specified value,
leakage is evident.
CAUTION
!
• In case of a large current leak, turn the
tester to high range first to avoid tester
damage.
• Do not turn on the ignition switch when
measuring current.
Action

Repair Instructions

BA02J21A06001
Yes
Remove accessories.
Go to Step 3.
• Faulty battery.
• Abnormal driving
condition.
Go to Step 5.
Go to Step 6.
Go to Step 7.
Faulty battery.
Special tool
: 09900–25008 (Multi circuit tester set)
Tester knob indication
Current ( , 20 mA)
Battery current (Leak)
Under 1.0 mA
5) Connect the (–) battery terminal and install the seat.
BA02J21A04002
No
Go to Step 2.
• Short circuit of wire
harness.
• Faulty electrical
equipment.
Go to Step 4.
• Faulty generator coil.
• Disconnected lead
wires.
Faulty generator.
Faulty regulator/rectifier.
• Short circuit of wire
harness.
• Poor contact of
couplers.
I649G11A0002-02