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
Test Step 22. Test Main Cab Wiring
A/C Does Not Blow Cold
Harness for High Resistance or
When Maximum Cool
Open.
Setting Is Selected
1. Disconnect connector CA-C1
Continued
(WP 0012, Figure 272) from
connector W-C22
(WP 0012, Figure 271).
2. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 23.
between connector W-C22
Resistance Greater Than 5.0 Ohms
terminal 6 (WP 0012, Figure 271)
Replace main cab wiring harness
and ground.
(WP 0505).
Proceed to Test Step 29.
Test Step 23. Test Main Cab Wiring
Harness for High Resistance or
Open.
1. Disconnect connector W-C16
(WP 0012, Figure 87) from
connector CL-C3
(WP 0012, Figure 86).
2. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 24.
between connector W-C22
Resistance Greater Than 5.0 Ohms
terminal 4 (WP 0012, Figure 271)
Replace main cab wiring harness
and connector W-C16 terminal 27
(WP 0505).
(WP 0012, Figure 87).
Proceed to Test Step 29.
Test Step 24. Test Engine Interface
Wiring Harness for High Resistance
or Open.
Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 25.
between connector CL-C3 terminal 27
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 86) and connector
Replace engine interface wiring
CL-C5 terminal 1 (WP 0012, Figure 47).
harness (WP 0211).
Proceed to Test Step 29.
Test Step 25. Test Air Conditioner
Wiring Harness for High Resistance
or Open.
1. Remove HVAC access cover
(WP 0479).
2. Loosen wingnut (Figure 2, Item 5)
and remove plate
(Figure 2, Item 6) and filter
(Figure 2, Item 7) from HVAC
assembly (Figure 2, Item 4).
0133-12
