Esteem GL Wagon L4-1.8L (1999)
1. Run engine from idling up to 2,000 rpm and read meters.
NOTE: Turn off switches of all accessories (wiper, heater etc.).
NOTE: Consideration should be taken that voltage will differ somewhat with regulator case temperature as shown in figure.
Higher Voltage
If voltage is higher than standard value, check ground of brush.
If brush ground is correct, replace IC regulator.
Lower Voltage
If voltage is lower than standard value, proceed to following check.
2. Ground F terminal and start engine, then measure voltage at B terminal as shown in figure.
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Voltage is higher than standard value
It is considered that generator itself is good but IC regulator has been damaged, replace IC regulator.
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Voltage is lower than standard value Generator it self has problem, check the generator.
Load Check
1. Run engine at 2,000 rpm and turn on head light and heater motor.
2. Measure current and if it is less than 20A (Type A) or 30 A (Type B), repair or replace generator.