Note: This test is necessary to determine the magnitude of the generator output current and its compliance with the nominal value.
1. Check the installation of the generator and the condition of the battery. Check the tension of the generator drive belt.
Note: The battery must be slightly discharged. A fully charged battery is not suitable for testing.
2. Turn off the ignition.
3. Disconnect the cable from the negative terminal of the battery.
4. Disconnect the wire from the generator terminal "B".
5. Connect a DC ammeter (0-100 A measurement range) in series between the generator terminal "B" and the disconnected wire.
6. Connect a voltmeter (measurement range 0-20 V): connect the "+" wire of the voltmeter to the "B" terminal, and the "-" wire to the "ground".
7. Connect the tachometer. Connect the previously disconnected wire to the negative terminal of the battery.
8. Leave the hood open.
9. Make sure that the voltmeter readings correspond to the battery voltage. If the voltmeter shows 0 V, the probable cause may be an open circuit between the generator terminal "B" and the battery terminal "-" or a poor connection to the "ground".
10. Start the engine and turn on the headlights.
11. Turn on the high beam headlights and set the heater fan speed control to the maximum speed position. Immediately after this, increase the engine speed to 2500 rpm and read the maximum value of the output current from the ammeter. Minimum value: 63 A. If the current is below the minimum value, but the generator terminal "B" circuit is in good condition, remove the generator and check it.
The basis of the material is information from the website [HyundaiBook]
Note: Since the output current drops quickly after the engine starts, the check should be performed as quickly as possible.
12. After checking, let the engine idle and turn off the ignition.
13. Disconnect the negative battery cable. Disconnect the ammeter, voltmeter and tachometer.
14. Connect the generator wire to terminal "B". Connect the wire to the negative terminal of the battery.