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
16. Reconnect harness connector
Replace high fan relay (WP 0018,
Function in One or More Speeds
C-C72 (WP 0018, Figure 43)
Figure 49). Ensure all harness
- Continued
to medium-high fan relay (WP
connectors are reconnected. Ver-
0018, Figure 50).
ify proper operation of machine
(TM 5-2410-240-10).
17. Turn ignition switch and bat-
tery disconnect switch to OFF
position (TM 5-2410-240-10).
18. Disconnect harness connec-
tor C-C72 (WP 0018, Figure
43) from high fan relay (WP
0018, Figure 49).
19. Reconnect harness connector
C-C72 (WP 0018, Figure 43)
to medium-high fan relay (WP
0018, Figure 50).
20. Using digital multimeter, test
No Continuity - Replace lower
for continuity (WP 0283)
cab wiring harness (WP 0228).
between harness connector
Ensure all harness connectors are
C-C73 (WP 0018, Figure 44)
reconnected. Verify proper opera-
terminal 2 and cab ground.
tion of machine (TM 5-2410-240-
10).
Continuity - Proceed to step 21.
21. Disconnect harness connec-
tor C-C43 (WP 0018, Figure
32) from HVAC control panel
(WP 0217).
22. Using digital multimeter, test
No Continuity - Replace lower
for continuity (WP 0283)
cab wiring harness (WP 0228).
between harness connector
Ensure all harness connectors are
C-C43 (WP 0018, Figure 32)
reconnected. Verify proper opera-
terminal 2 and harness con-
tion of machine (TM 5-2410-240-
nector C-C73 (WP 0018, Fig-
10).
ure 44) terminal 5.
Continuity - Proceed to step 23.
23. Disconnect harness connec-
tor C-C40 (WP 0018, Figure
30) from FP-C5 (WP 0018,
Figure 170).
0021-35