TM 5-2410-240-23-1
0021
Table 1. Cab Troubleshooting Without Codes. - Continued.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. HVAC Blower Motor Does Not
31. Install armored HVAC filter
Function in One or More Speeds
cover, three washers, and
- Continued
bolts to left side armor panel.
Figure 18. Armored HVAC Filter Cover.
0021
Test Step 6.
1. Turn ignition switch and bat-
tery disconnect switch to OFF
position (TM 5-2410-240-10).
2. Disconnect harness connec-
tor C-C74 (WP 0018, Figure
45) from AC-C4 (WP 0018,
Figure 272).
3. Turn battery disconnect switch
and ignition switch to ON posi-
tion (TM 5-2410-240-10).
4. Turn blower fan switch to high
fan speed (TM 5-2410-240-
10).
5. Using digital multimeter, mea-
Voltage Less Than Specified
sure for voltage (WP 0283)
Range - Proceed to step 6.
between harness connector
Voltage Within Specified Range
C-C74 (WP 0018, Figure 45)
- Proceed to step 25.
terminal 1 and terminal 4.
There should be approximately 18
to 26 volts.