Hyundai Sonata 1991 Shop Manual page 125

CHARGING SYSTEM
3. Upon completion of the tes!, let the engine idle. Turn off the
lights and ignition switch.
4. Disconnect the battery ground cable.
5. Disconnect the ammeter and voltmeter that were connected
for test purposes.
6. Connect the alternator output wire to the alternator "B"
terminal.
7. Connect the battery ground cable.
OUTPUT CURRENT TEST
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The test determines if the alternator output is within normal
specifications.
Preparation
1. Prior to the test, check the following items and correct as
necessary.
1) Check the battery installed in the vehicle to ensure that
it is in good condition. The test method is described in
the "BATIERY" section.
2) Check the tension of the alternator drive belt.
2. Turn off the ignition switch.
3. Disconnect the battery ground cable.
4. Disconnect the alternator output wire from the alternator "B"
terminal.
5. Connect a DC ammeter (0 to 1OOA) in series between the
"B" terminal and the disconnected output wire.
Connect the (+) lead wire of the ammeter to the alternator
"B" terminal and the (-) lead wire to the disconnected
output wire.
NOTE:
Tighten each connection securely because of heavy
current flow. Do not rely on clips.
6. Connect a voltmeter (0 to 20V) between the "B" terminal and
ground. Connect the (+) lead wire of the voltmeter to the
alternator "B" terminal and (-) lead wire to ground.
7. Connect a tachometer and re-connect the battery ground
cable.
8. Leave the engine hood open.
27-6
,...--<,......0------........
Load
Battery Ignition
switch
Charge
warning light
Relay with diode
D D
Voltmeter Ammeter
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