Charging System Test Procedure

Press ENTER to begin charging system test.

Fig 1: Identifying Tester Screen Display - Press Enter For Charging Test
Courtesy of KIA MOTORS AMERICA, INC.
ENTER button is pressed, the tester displays the actual voltage of generator.
Press ENTER to test the charging system.

Fig 2: Identifying Tester Screen Display - Enter Button Pressed
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The MICRO 570 will prompt you to rev the engine until the rev is detected. It will then collect the data.

Fig 3: Identifying Tester Screen Display - Increase REV
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Press ENTER.

Fig 4: Identifying Tester Screen Display - Press Enter
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The MICRO 570 will analyze the charging system output at idle for comparison to other readings.

Fig 5: Identifying Tester Screen Display - Increase REV
Courtesy of KIA MOTORS AMERICA, INC.
The MICRO 570 will detect the amount of ripple from the charging system to the battery. Excessive ripple usually means the stator is damaged or that one or more generator diodes have failed.

Fig 6: Identifying Tester Screen Display - Testing Diode Ripple
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The MICRO 570 will prompt you to turn on accessary loads. It will then test at idle and prompt you to rev the engine. The analyzer will determine if the charging system can provide enough current for the demands of the vehicle's electrical system.

Fig 7: Identifying Tester Screen Display - Turn Loads On Enter To Cont
Courtesy of KIA MOTORS AMERICA, INC.

NOTE: When asked to turn on the accessory loads, turn on the blower to high (heater), the high beam headlights, and rear defogger. DO NOT use cyclical loads such as air conditioning or windshield wipers.
After the test, the MICRO 570 will display the idle voltage, load voltage and the state results.

Fig 8: Identifying Tester Screen Display - Load Voltage And State Results
Courtesy of KIA MOTORS AMERICA, INC.

Fig 9: Identifying Tester Screen Display - Diode Ripple Normal
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CHARGING SYSTEM TEST RESULTS

RESULT ON PRINTER	REMEDY
Charging system normal/Diode ripple normal	Charging system is normal
No charging voltage	Generator does not supply charging current to battery => Check belts, connection between generator and battery Replace belts or cable or generator as necessary
Low charging voltage	Generator does not supply charging current to battery and electrical load to system fully => Check belts and generator and replace as necessary
High charging voltage	The voltage from generator to battery is higher than normal limit during voltage regulating. => Check connection and ground and replace regulator as necessary => Check electrolyte level in the battery
Excess ripple detected	One or more diodes in the generator is not functioning properly => Check generator mounting and belts and replace as necessary