Troubleshooting Guide

The charging system troubleshooting guide is shown in the following steps.

1. STEP 1.

   Q: Is the battery in good condition? (Refer to  BATTERY CHECK  .) 

   • YES :  Go to Step 2.
   • NO :  Charge or replace the battery.
2. STEP 2.

   Q: Is the generator drive belt in good condition? (Refer to  8. DRIVE BELT (FOR GENERATOR, WATER PUMP AND POWER STEERING OIL PUMP) (CHECK CONDITION)  .) 

   • YES :  Go to Step 3.
   • NO :  Adjust the belt tension or replace the belt.
3. STEP 3.

   Q: Does the generator malfunction light turn on brightly when the ignition switch is turned to the "ON" position? 

   • YES :  Go to Step 4.
   • NO: 
     • Check the ignition switch. (Refer to INSPECTION .)
     • Check for burnt-out generator malfunction light bulb.
     • Check the generator. (Refer to INSPECTION  .)
     • Check the generator malfunction light-related circuits.
4. STEP 4.

   Q: Does the generator malfunction light go out after starting the engine? 

   • YES :  Go to Step 5.
   • NO :  Check the generator (Refer to INSPECTION  .)
5. STEP 5.

   Q: Is an oscilloscope available? 

   • YES :  Go to Step 6.
   • NO :  Go to  Step 7 .
6. STEP 6.

   Q: Does the oscilloscope show a normal wave pattern? (Refer to  WAVE PATTERN CHECK USING AN OSCILLOSCOPE   .) 

   • YES :  Go to Step 7.
   • NO :  Check the generator. (Refer to INSPECTION  .)
7. STEP 7.
   • Engine: 2,500 r/min
   • Headlight: ON (high beam)
   • Voltage between generator "B" terminal and the positive battery terminal

     OK: 0.5 V or less

   • Voltage between the negative battery terminal and generator body

     OK: 0.5 V or less

   Q: Are the generator output line and ground line in good condition? 

   • YES :  Go to Step 8.
   • NO: 
     • Check the generator output line.
     • Check the generator ground line.
8. STEP 8.

   Q: Is the output current normal? (Refer to  OUTPUT CURRENT TEST   .) 

   • YES :  Go to Step 9.
   • NO :  Check the generator (Refer to INSPECTION  .)
9. STEP 9.

   Q: Is the regulated voltage normal? (Refer to  REGULATED VOLTAGE TEST   .) 

   • YES :  Go to Step 10.
   • NO :  Check the generator (Refer to INSPECTION  .)
10. STEP 10.

    Q: Are the voltage drops in the generator output line normal? (Refer to  GENERATOR OUTPUT LINE VOLTAGE DROP TEST   .) 

    • YES :  Generator is normal. Check other systems.
    • NO :  Check the output line.