TM 5-3805-248-23-1
ELECTRICAL ACCESSORIES TROUBLESHOOTING PROCEDURES - CONTINUED
0011 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6.
Check switch medium speed contacts
12. Heater Blower Is
for continuity.
Inoperative - Continued.
a. Place battery disconnect switch in
OFF position (TM 5-3805-248-10).
b. Set multimeter to appropriate ohm
(Ω) range (WP 0018 00).
c. Place heater switch in medium
position (TM 5-3805-248-10).
d. Connect multimeter positive lead to
1. If continuity is not indicated, replace
heater switch red terminal (switch
heater switch (WP 0222 00).
side) and multimeter negative lead
to heater switch green wire (switch
side).
2. If continuity is indicated, replace heater
blower (WP 0319 00).
7.
Check for continuity to heater blower
high speed terminal.
a. Place battery disconnect switch in
OFF position (TM 5-3805-248-10).
b. Set multimeter to appropriate ohm
(Ω) range (WP 0018 00).
c. Disconnect heater blower electrical
connections (WP 0319 00).
d. Place heater switch in high position
(TM 5-3805-248-10).
e. Connect multimeter positive lead to
1. If battery voltage is not indicated, go to
orange/purple wire of heater blower
Test 8.
(harness side) and multimeter
2. If battery voltage is indicated, replace
negative lead to orange/purple wire
heater blower assembly (WP 0217 00).
of heater switch (harness side).
0011 00-36
