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 TEST ).

   YES:  Go to Step  2.

   NO:  Charge or replace the battery.

2. STEP 2. 

   Q: Is the drive belt in good condition?  (Refer to DRIVE BELT (FOR WATER PUMP AND GENERATOR) (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 come on when the ignition switch is turned on? 

   YES:  Go to Step  4.

   NO:  Check the ignition switch. (Refer to INSPECTION ).

   Check the generator malfunction light and its related circuits.

   Check the generator. (Refer to >>B<< PULLEY INSTALLATION ) <2.4L> (Refer to REASSEMBLY SERVICE POINTS ) <3.0L>.

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 >>B<< PULLEY INSTALLATION ) <2.4L> (Refer to REASSEMBLY SERVICE POINTS ) <3.0L>.

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 Voltage Regulation Table ).

   YES:  Go to Step  7.

   NO:  Check the generator. (Refer to >>B<< PULLEY INSTALLATION ) <2.4L> (Refer to REASSEMBLY SERVICE POINTS ) <3.0L>.

7. STEP 7. 
   • Engine: 2, 500 r/min
   • Headlight: ON (high beam)
   • Voltage between generator terminal B 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 and 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 >>B<< PULLEY INSTALLATION ) <2.4L> (Refer to REASSEMBLY SERVICE POINTS ) <3.0L>.

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 >>B<< PULLEY INSTALLATION ) <2.4L> (Refer to REASSEMBLY SERVICE POINTS ) <3.0L>.

10. STEP 10. 

    Q: Is the voltage drop in the generator output line normal? 

    YES:  Generator is normal. Check other systems.

    NO:  Check the output line.