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Home >> Mitsubishi >> 2020 >> RVR GT >> Repair and Diagnosis >> Electrical >> Charging Systems >> Charging System Diagnosis >> Troubleshooting Guide

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 DRIVE BELTS (FOR GENERATOR 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 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 INSPECTION  ].

  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  VOLTAGE REGULATION TABLE   .) 

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

    YES:  Generator is normal. Check other systems.

    NO:  Check the output line.