7-3
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CHARGING SYSTEM
CHARGING SYSTEM TROUBLESHOOTING
BATTERY IS DAMAGED OR WEAK
1. Battery test
Remove the battery.
Check the battery condition using a commercially available battery tester.
Is the battery in good condition?
YES – GO TO STEP 2.
NO – Faulty battery.
2. Fuse inspection
Check for blown fuse (70 A).
Is it normal?
YES – GO TO STEP 3.
NO – Battery connected incorrectly or reverse polarity.
• Check for short in the main wire harness
• Incorrect load by referring to the fuse load chart (page 4-12)
• Replace the blown fuse
3. Load inspection
Check whether an excessive load is connected.
Is the load normal?
YES – GO TO STEP 4.
NO – Remove the load and recheck.
4. Alternator stator inspection
Check the alternator stator (page 7-13).
Is it normal?
YES – GO TO STEP 5.
NO – Faulty alternator stator.
5. Regulator/rectifier inspection
Check the regulator/rectifier (page 7-13).
Is it normal?
YES – Repair or replace the main wire harness.
NO – Faulty regulator/rectifier.
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