Test No. 3 Harness Voltage
Test
(Remove Battery Sense Only)
Remove harness sense lead from sense terminal and connect voltmeter leads
as
shown
in
Figure
below. Voltmeter should indicate battery voltage (approx.
12.6
volts for a fully charged battery with
ignition key off).
If voltage is zero, the hardness "sense" lead is open and should be repaired or
replaced.
I
VOLTS
I
+ -
INTEGRAL
REGULATOR
EXCITE
(TO
IGN.
SN.
OR
Oil
PRESS.
SW.)
BlK
REO
'REMOTE
BATTERY
SENSE
ONLY
CABLE HARNESS VOLTAGE TEST
Test No. 4 Alternator Ooutput
Test
BATTERY
After voltmeter is connected,
as
shown
in
Figure below, start and run engine at a fast idle of
approximately
1,500
RPM.
Turn
on
vehicle headlights and blower fan (low speed). Check for
nominal system output voltage of between
13.8-14.8
volts for a properly operating charging system.
(Voltages may vary a few tenths of a volt (higher or lower) due to ambient temperature variations).
If the alternator output voltage does not fall within the proper range, the alternator should
be
disassembled for further inspection and tests.
IGN.
INO
SW.
LIGHT
INTEGRAL
--~_
••
I
VOLTS
I
REGULATOR
+ -
BlK
REO
POS
+
OUTPUT
13.B
TO
14.BV
BATTERY
'SENSE
TO
BATT
(+)
'REMOTE
BATTERY
SENSE
ONLY
ALTERNATOR OUTPUT TEST
83
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