TM 5-2410-241-23-1
0022
Table 1. Cab Troubleshooting Procedures - Continued.
0022
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Blower Motor Does NOT
67. Using digital multimeter (WP
1.
If continuity is found, replace
Function in One or More
0296), test for continuity between
blower motor resistor (WP 0219).
Speeds - Continued
pin C on blower motor harness
Ensure all harness connectors
resistor connector (WP 0018, Fig-
are reconnected. Verify correct
ure 174) and pin 1 on blower
operation of machine (TM 5-2410-
motor harness connector EE-C8
241-10).
(WP 0018, Figure 167).
2.
If continuity is NOT found, replace
blower motor harness (WP 0219).
Ensure all harness connectors
are reconnected. Verify correct
operation of machine (TM 5-2410-
241-10).
68. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
69. Disconnect instrument panel har-
ness connector E-C14 (WP 0018,
Figure 166) from blower motor
harness connector EE-C8 (WP
0018, Figure 167).
70. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-2410-241-10).
71. Turn blower motor switch to MAX
(SPEED 4) (TM 5-2410-241-10).
72. Using digital multimeter (WP
1. If 24 Volts is found, proceed to
0296), measure for voltage
step 76.
between pin 3 on instrument
2. If voltage is NOT found, proceed
panel harness connector E-C14
to step 73.
(WP 0018, Figure 166) and pin 2
on instrument panel harness con-
nector E-C14 (WP 0018, Figure
166).
73. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
74. Disconnect instrument panel har-
ness blower motor speed switch
connector E-C2 (WP 0018, Figure
171) from blower motor speed
switch.
0022-130