TM 5-3800-205-23-1
TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
0005 00
TROUBLESHOOTING USING MULTIMETER - CONTINUED
h.
Observe multimeter for an indication of more than 1.3 volts. If indication is more than 1.3 volts, replace engine
temperature switch (WP 0063 00).
i.
Remove test leads from test connector.
j.
Install test connector protective cap.
Start Aid Temperature Switch/Solenoid Voltage Test.
9.
NOTE
Perform this test only when engine coolant temperature is below 80F (27C).
Tachometer will indicate zero for this test.
This test measures voltage drop across start aid temperature switch, and resistance of solenoid
coil.
a.
Ensure engine is OFF.
b.
Place battery disconnect switch in ON position.
c.
Turn all accessories OFF.
d.
Remove protective cap from test connector receptacle.
e.
Select VDC on multimeter.
f.
Connect positive (red) lead from multimeter to test connector pin 8.
g.
Connect negative (black) lead from multimeter to test connector pin 10.
h.
Observe multimeter for an indication of more than 2.5 volts. If indication is more than 2.5 volts, replace start aid
temperature switch (WP 0063 00).
i.
Select OHMS on multimeter.
j.
Connect positive (red) lead from multimeter to test connector pin 10.
k.
Connect negative (black) lead from multimeter to test connector pin 7.
l.
Observe multimeter for an indication of more than 300 ohms. If indication is more than 300 ohms, replace start aid
solenoid (WP 0022 00).
m.
Remove test leads from test connector.
n.
Install test connector protective cap.
Starter Relay Voltage Test.
10.
NOTE
This test measures voltage drop across starter relay contacts.
a.
Ensure engine is OFF.
b.
Place battery disconnect switch in ON position.
c.
Turn all accessories OFF.
d.
Remove wire from upper terminal (GND Negative) on engine fuel shutoff solenoid.
e.
Remove protective cap from test connector.
f.
Select VDC on multimeter.
g.
Connect positive (red) lead from multimeter to test connector pin 9.
0005 00-7
