Troubleshooting Guide
The charging system troubleshooting guide is shown in the following steps.
- STEP 1.
Q: Is the battery in good condition? (Refer to FLUID LEVEL AND SPECIFIC GRAVITY CHECK ).
YES : Go to Step 2.
NO : Charge or replace the battery.
- STEP 2.
Q: Is the drive belt in good condition? (Refer to DRIVE BELT TENSION CHECK AND ADJUSTMENT ).
YES : Go to Step 3.
NO : Adjust the belt tension or replace the belt.
- STEP 3.
Q: Does the generator malfunction light come on when the ignition switch is turned "ON" position?
YES : Go to Step 4.
NO : Check the ignition switch (Refer to IGNITION SWITCH CHECK ).
Check the generator malfunction light and its related circuits.
Check the generator.
- STEP 4.
Q: Does the generator malfunction light go out after starting the engine?
YES : Go to Step 5.
NO : Check the generator.
- STEP 5.
Q: Is an oscilloscope available?
YES : Go to Step 6.
NO : Go to Step 7.
- STEP 6.
Q: Does the oscilloscope show a normal wave pattern? (Refer to WAVEFORM CHECK USING AN OSCILLOSCOPE ).
YES : Go to Step 7.
NO : Check the generator.
- 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.
- STEP 8.
Q: Is the output current normal? (Refer to WAVEFORM CHECK USING AN OSCILLOSCOPE ).
YES : Go to Step 9.
NO : Check the generator
- STEP 9.
Q: Is the regulated voltage normal? (Refer to WAVEFORM CHECK USING AN OSCILLOSCOPE ).
YES : Go to Step 10.
NO : Check the generator.
- 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.