Perform the charging system test using Starting/Charging System Tester (SST: J-44373). For details and operating instructions, refer to Technical Service Bulletin.
Test result
CHARGING SYSTEM NORMAL
>>Charging system is normal and will also show “DIODE RIPPLE” test result.
NO CHARGING VOLTAGE
>>GO TO 3.
LOW CHARGING VOLTAGE
>>GO TO 11.
HIGH CHARGING VOLTAGE
>>GO TO 13.
DIODE RIPPLE NORMAL
>>Diode ripple is OK and will also show “CHARGING VOLTAGE” test result.
EXCESS RIPPLE DETECTED
>>Replace the alternator. Perform “DIODE RIPPLE” test again using Starting/Charging System Tester (SST: J-44373) to confirm repair.
DIODE RIPPLE NOT DETECTED
>>GO TO 3.