TM 5-3805-261-23-1
ELECTRICAL SYSTEM TROUBLESHOOTING PROCEDURES - CONTINUED
0008 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
h. Place defroster control switch to
1. If voltage is not indicated in either Step
39. Defrosters Will Not Operate
high speed position and touch
g or h, replace defroster control switch
or Will Not Operate in High
meter positive lead to switch high
Speed or Low Speed (CCE
speed terminal. Observe meter
Machine) - Continued.
reading.
2. If voltage is not indicated in both Steps
g and h, go to Test 2.
3. If voltage is indicated in both Steps g
and h, replace defective defroster fan
motor (WP 0210 00). If problem still
exists, go to Test 2.
DEFROSTER
CONTROL
SWITCH
15A FUSE
BLACK LEAD
397-2440
2.
Test defroster switch for continuity.
a. Place battery disconnect switch in
OFF position.
b. Completely disconnect defroster
switch harness.
c. Set multimeter to appropriate ohm
(Ω) range.
d. Connect meter positive lead to
center switch terminal (switch
side).
e. Connect meter negative lead to
either of the other two terminals
(switch side).
0008 00-34
