Detailed Flow
- PRELIMINARY INSPECTION
Perform the preliminary inspection. Refer to "INSPECTION PROCEDURE ".
GO TO 2.
- DIAGNOSIS WITH STARTING/CHARGING SYSTEM TESTER
Perform the charging system test using Starting/Charging System Tester (SST: J-44373). For details and operating instructions, refer to the applicable Technical Service Bulletin.
Test result
CHARGING SYSTEM NOMAL: 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 4.
- INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON)
Turn the ignition switch ON.
Does the charge warning lamp illuminate?
YES: GO TO 5.
NO: GO TO 4.
- "L" TERMINAL CIRCUIT (OPEN) INSPECTION
Check "L" terminal circuit (open). Refer to "DIAGNOSIS PROCEDURE ".
Is the "L" terminal circuit normal?
YES: Replace alternator.
NO: Repair as needed.
- INSPECTION WITH CHARGE WARNING LAMP (IDLING)
Start the engine and run it at idle.
Does the charge warning lamp turn OFF?
YES: GO TO 8.
NO: GO TO 6.
- "L" TERMINAL CIRCUIT (SHORT) INSPECTION
Check "L" terminal circuit (short). Refer to "DIAGNOSIS PROCEDURE ".
Is the "L" terminal circuit normal?
YES: GO TO 7.
NO: Repair as needed.
- "S" TERMINAL CIRCUIT INSPECTION
Check "S" terminal circuit. Refer to "DIAGNOSIS PROCEDURE ".
Is the "S" terminal circuit normal?
YES: GO TO 9.
NO: Repair as needed.
- INSPECTION WITH CHARGE WARNING LAMP (ENGINE AT 3,000 RPM)
Increase and maintain the engine speed at 3,000 RPM.
Does the charge warning lamp remain off?
YES: GO TO 10.
NO: GO TO 9.
- INSPECTION OF ALTERNATOR PULLEY
Check alternator pulley. Refer to "INSPECTION ".
Is alternator pulley normal?
YES: Replace alternator.
NO: Repair as needed.
- "B" TERMINAL CIRCUIT INSPECTION
Check "B" terminal circuit. Refer to "DIAGNOSIS PROCEDURE ".
Is "B" terminal circuit normal?
YES: Replace alternator.
NO: Repair as needed.
- "B" TERMINAL CIRCUIT INSPECTION
Check "B" terminal circuit. Refer to "DIAGNOSIS PROCEDURE ".
Is "B" terminal circuit normal?
YES: GO TO 12.
NO: Repair as needed.
- INSPECTION OF ALTERNATOR PULLEY
Check alternator pulley. Refer to "INSPECTION ".
Is alternator pulley normal?
YES: Replace alternator.
NO: Repair as needed.
- "S" TERMINAL CIRCUIT INSPECTION
Check "S" terminal circuit. Refer to "DIAGNOSIS PROCEDURE ".
Is the "S" terminal circuit normal?
YES: Replace alternator.
NO: Repair as needed.