TM 5-3805-296-23-2
0132
Table 1. Heater Does Not Operate Properly Continued.
0132
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Heater Does Not Operate
5. Disconnect connector H-C6
Properly Continued
(WP 0012, Figure 240) from
temperature select switch
(WP 0012, Figure 239).
6. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
7. Using digital multimeter
Voltage 11.5 to 14 V Proceed to Test
(WP 0540), test for voltage
Step 10.
between connector H-C6
Voltage Less Than 11.5 V Proceed
terminal A and terminal C
to Test Step 12.
(WP 0012, Figure 240).
Test Step 10. Test Headliner Wiring
Harness for High Resistance or
Open.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Connect jumper wire between
terminal B and terminal C
of connector H-C6
(WP 0012, Figure 240)
3. Disconnect connector W-C2
(WP 0012, Figure 224)
from connector H-C7
(WP 0012, Figure 225).
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 11.
between connector H-C7
Resistance Greater Than 5.0 Ohms
terminal 21 and terminal 22
Replace headliner wiring harness
(WP 0012, Figure 225).
(WP 0497).
Proceed to Test Step 14.
Test Step 11. Test Main Cab Wiring
Harness for High Resistance or
Open.
1. Remove jumper wire from terminal
B and terminal C of connector
H-C6 (WP 0012, Figure 240).
2. Disconnect connector W-C22
(WP 0012, Figure 271)
from connector CA-C1
(WP 0012, Figure 272).
3. Connect jumper wire between
terminal 5 and terminal 9
of connector W-C22
(WP 0012, Figure 271).
0132-9
