TM 5-3805-296-23-2
0133
Table 1. A/C Does Not Blow Cold When Maximum Cool Setting Is Selected Continued.
0133
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Disconnect connector H-C15
A/C Does Not Blow Cold
(WP 0012, Figure 248) from heat
When Maximum Cool
A/C switch connector
Setting Is Selected
(WP 0012, Figure 247).
Continued
NOTE
Make sure heat A/C switch is in A/C position (TM 5-3805-296-10).
5. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 14.
between heat A/C switch
Resistance Greater Than 5.0 Ohms
connector terminal 2 and
Replace heat A/C switch (WP 0470).
terminal 3 (WP 0012, Figure 247).
Proceed to Test Step 29.
Test Step 14. Test Power to Heat A/C
Switch.
1. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
2. Turn fan speed switch to position
IIII (TM 5-3805-296-10).
3. Using digital multimeter
Voltage 18 to 28 V Proceed to Test
(WP 0540), test for voltage
Step 15.
between connector H-C15
Voltage Less Than 18 V Proceed to
terminal 2 (WP 0012, Figure 248)
Test Step 17.
and ground.
Test Step 15. Test Engine Interface
Wiring Harness for High Resistance
or Open.
1. Turn fan speed switch to
position O (TM 5-3805-296-10).
2. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
3. Disconnect connector W-C16
(WP 0012, Figure 87) from
connector CL-C3
(WP 0012, Figure 86).
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 16.
between connector CL-C7
Resistance Greater Than 5.0 Ohms
terminal 4 (WP 0012, Figure 51)
Replace engine interface wiring
and connector CL-C3 terminal 23
harness (WP 0211).
(WP 0012, Figure 86).
Proceed to Test Step 29.
0133-8