Honda CB400F 1989 Service Manual page 142

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CHARGING SYSTEM/ALTERNATOR
TROUBLESHOOTING
Battery overcharging
Faulty regulator/rectifier
»
Battery undercharging
Measure the battery
current
leakage
(Leak test)
(page 14-4)
Check the regulator/rectifier unit inspection
(page
14-6)
_
-
INCORRECT
I
T
#
CORRECT
INCORRECT
t.
•
Shorted wire harness
• Faulty ignition switch
CORRECT
•
Faulty regulator/rectifier
#
t
Inspect the charging voltage
(page
14-4)
'
CORRECT
Check the battery using a Honda Battery Tester
I
CORRECT INCORRECT
♦
•
Electric
system
overloading
NOT CHARGING
i
•
Faulty battery
Check the voltages of the regulator/rectifier bat
tery
charging line and ground line
(page 14-5)
Open circuit in wire harness
• Poorly connected
connectors
- ABNORMAL
T
NORMAL
♦
Check the alternator (charging coil) resistance
at
the regulator/rectifier
connector
(page 14
5)
- ABNORMAL
Check the charging coil
at
alternator (page 14-7)
»
ABNORMAL NORMAL
♦
•
Poorly connected alternator
connector NORMAL
I
•
Faulty alternator
Check the regulater/rectifier
unit inspection
(page 14-6)
-
ABNORMAL
•
Faulty regulator/rectifier
T
NORMAL
•
Faulty battery
I
I
1