TM 5-2410-241-23-1
0022
Table 1. Cab Troubleshooting Procedures - Continued.
0022
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
The A/C Compressor will
48. Using digital multimeter (WP
1. If continuity is found, replace
Not Engage - Continued
0296), test for continuity between
blower motor circuit breaker (WP
112 PURPLE blower motor supply
0176). Reinstall fuse box (WP
power wire on plug 1 (WP 0018,
0176). Ensure all harness con-
Figure 174) and 112 PURPLE
nectors are reconnected. Verify
blower motor supply power wire
correct operation of machine (TM
on plug 2 (WP 0018, Figure 174).
5-2410-241-10).
2. If continuity is NOT found, replace
112 purple blower motor supply
power wire (WP 0176).Reinstall
fuse box (WP 0176). Ensure all
harness connectors are recon-
nected. Verify correct operation of
machine (TM 5-2410-241-10).
Blower Motor Does NOT
1. Turn battery disconnect switch
Function in One or More
and ignition switch to ON position
Speeds
(TM 5-2410-241-10).
2. Inspect operation of blower motor
1. If blower motor does NOT operate
(TM 5-2410-241-10).
in ANY SPEED, proceed to
a. Turn blower motor switch to
step 3.
LOW (SPEED 1).
2. If blower motor does NOT operate
b. Turn blower motor switch to
in LOW (SPEED 1), proceed to
MED (SPEED 2).
step 32.
c. Turn blower motor switch to
3. If blower motor does NOT operate
HIGH (SPEED 3).
in MED (SPEED 2), proceed to
d. Turn blower motor switch to
step 44.
MAX (SPEED 4).
4. If blower motor does NOT operate
in HIGH (SPEED 3), proceed to
step 56.
5. If blower motor does NOT operate
in MAX (SPEED 4), proceed to
step 68.
6. If blower motor operation is OK,
problem does NOT exist at this
time. Resume normal operation.
3. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
4. Disconnect instrument panel har-
ness connector E-C2 (WP 0018,
Figure 171) from blower motor
speed switch.
5. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-2410-241-10).