TM 5-3805-296-23-2
0134
Table 1. Blower Motor Does Not Operate in One or More Speeds Continued.
0134
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Using digital multimeter
Blower Motor Does Not
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Operate in One or More
Proceed to Test Step 10.
between connector H-C7
Speeds Continued
Resistance Greater Than 5.0 Ohms
terminal 12 and terminal 16
Replace headliner wiring harness
(WP 0012, Figure 225).
(WP 0497).
Proceed to Test Step 38.
Test Step 10. Test Main Cab Wiring
Harness for High Resistance or
Open.
1. Remove jumper wire from
terminal 1 and terminal 6 of
connector H-C3 (WP 0012,
Figure 250).
2. Disconnect connector CG-C1
(WP 0012, Figure 283) from
connector W-C8 (WP 0012,
Figure 282).
3. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 11.
between connector W-C8
Resistance Greater Than 5.0 Ohms
terminal 6 (WP 0012, Figure 282)
Replace main cab wiring harness
and connector W-C2 terminal 16
(WP 0505).
(WP 0012, Figure 224).
Proceed to Test Step 38.
Test Step 11. Test Blower Motor
Breaker Wiring Harness.
1. Remove fuse panel wiring harness
(WP 0515).
2. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Replace fuse panel wiring harness
between connector CG-T1
(WP 0515).
(Figure 2, Item 1) and connector
Proceed to Test Step 38.
FF-T1 (Figure 2, Item 2).
Resistance Greater Than 5.0 Ohms
Replace blower motor breaker and
wiring assembly (WP 0496).
Proceed to Test Step 38.
0134-6