Hyundai Santa Fe (2006 year). Manual - part 284
CHARGING SYSTEM
EE -15
OUTPUT CURRENT TEST
This test determines whether or not the alternator gives an
output current that is equivalent to the nominal output.
PREPARATION
1.
Prior to the test, check the following items and correct
as necessary.
Check the battery installed in the vehicle to ensure
that it is in good condition.
The battery checking
method is described in "BATTERY".
The battery that is used to test the output current
should be one that has been partially discharged.
With a fully charged battery, the test may not be con-
ducted correctly due to an insufficient load.
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 alter-
nator "B" terminal.
5.
Connect a DC ammeter (0 to 150A) in series between
the "B" terminal and the disconnected output wire. Be
sure to connect the (-) lead wire of the ammeter to the
disconnected output wire.
NOTE
Tighten each connection securely, as a heavy current
will flow. Do not rely on clips.
6.
Connect a voltmeter (0 to 20V) between the "B" termi-
nal and ground. Connect the (+) lead wire to the alter-
nator "B" terminal and (-) lead wire to a good ground.
7.
Attach an engine tachometer and connect the battery
ground cable.
8.
Leave the engine hood open.
Voltmeter
Ammeter
Check engine
L
Ioad
S or DUMMY
LBIF023A
TEST
1.
Check to see that the voltmeter reads as the same
value as the battery voltage. If the voltmeter reads 0V,
and the open circuit in the wire between the alternator
"B" terminal and battery (-) terminal, a blown fusible
link or poor grounding is suspected.
2.
Start the engine and turn on the headlights.
3.
Set the headlights to high beam and the heater blower
switch to HIGH, quickly increase the engine speed
to 2,500 rpm and read the maximum output current
value indicated by the ammeter.
NOTE
After the engine starts up, the charging current quickly
drops. Therefore, the above operation must be done
quickly to read the maximum current value correctly.
RESULT
1.
The ammeter reading must be higher than the limit
value. If it is lower but the alternator output wire is in
good condition, remove the alternator from the vehicle
and test it.
Limit value (90Aalternator): 63A min.
NOTE
• The nominal output current value is shown on the
nameplate affixed to the alternator body.
• The output current value changes with the elec-
trical load and the temperature of the alternator
itself. Therefore, the nominal output current may
not be obtained. If such is the case, keep the
headlights on the cause discharge of the battery,
or use the lights of another vehicle to increase
the electrical load.
The nominal output current may not be obtained if
the temperature of the alternator itself or ambient
temperature is too high.
In such a case, reduce the temperature before
testing again.
3.
Upon completion of the output current test, lower the
engine speed to idle and turn off the ignition switch.
4.
Disconnect the battery ground cable.
5.
Remove the ammeter and voltmeter and the engine
tachometer.
6.
Connect the alternator output wire to the alternator
"B" terminal.
7.
Connect the battery ground cable.