TM 5-3805-261-23-1
ELECTRICAL SYSTEM TROUBLESHOOTING PROCEDURES - CONTINUED
0008 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
f. Toggle switch between all three
39. Defrosters Will Not Operate
positions. Observe meter reading.
or Will Not Operate in High
Speed or Low Speed (CCE
Machine) - Continued.
g. Repeat Steps c through e for
1. If continuity is indicated in HIGH and
remaining terminal.
LOW, but not in OFF position, repair
defroster circuitry (WP 0021 00).
2. If continuity is not indicated as stated
above, replace defroster switch (WP
NOTE
40. Windshield Wiper Will Not
Operate or Will Not Operate
The following procedure is for both front and rear windshield
in High Speed or Low Speed
wiper circuits.
Position (CCE Machine).
1.
Test wiper motor circuit voltage.
a. Place battery disconnect switch in
OFF position.
b. Check windshield wiper fuse (4A).
1. Replace fuse if blown (WP 0097 00).
2. If fuse is not blown, reinstall and go to
Step c.
c. Disconnect wiper motor wire
connectors.
d. Set multimeter to appropriate
voltage range.
e. Connect meter negative lead to
chassis ground.
f. Place battery disconnect switch in
ON position.
g. Place wiper switch to low speed
position and touch meter positive
lead to green wire. Observe meter
reading.
h. Place wiper switch to high speed
1. If voltage is not indicated in either Step
position and touch meter positive
g or h, go to Test 2.
lead to red wire. Observe meter
2. If voltage is indicated in both Steps g
reading.
and h, go to Test 4.
