TM 5-2410-240-23-1
0021
Table 1. Cab Troubleshooting Without Codes. - Continued.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Little or No Warm Air Flow When
6. Using digital multimeter, test
No Continuity - Proceed to step 7.
for continuity (WP 0283)
Heater Control Knob is Set for
Continuity - Replace A/C blower
between harness connector
Maximum Heating Continued
harness (WP 0245). Ensure all
AC-C1 (WP 0018, Figure 1)
harness connectors are recon-
terminal 8 and all other termi-
nected. Verify proper operation of
nals in harness connector AC-
machine (TM 5-2410-240-10).
C1 (WP 0018, Figure 1).
7. Disconnect harness connec-
tor C-C12 (WP 0018, Figure
22) from harness connector
PL-C1 (WP 0018, Figure 214).
8. 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-C12 (WP 0018, Figure 22)
reconnected. Verify proper opera-
terminal 1 and harness con-
tion of machine (TM 5-2410-240-
nector C-C44 (WP 0018, Fig-
10).
ure 33) terminal 9.
Continuity - Proceed to step 9.
9. Using digital multimeter, test
No Continuity - Proceed to step
for continuity (WP 0283)
10.
between harness connector
Continuity - Replace lower cab
C-C12 (WP 0018, Figure 22)
wiring harness (WP 0228). Ensure
terminal 1 and all other termi-
all harness connectors are recon-
nals in harness connector C-
nected. Verify proper operation of
C12 (WP 0018, Figure 22).
machine (TM 5-2410-240-10).
10. 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-C16 (WP 0018, Figure 24)
reconnected. Verify proper opera-
terminal 6 and harness con-
tion of machine (TM 5-2410-240-
nector C-C44 (WP 0018, Fig-
10).
ure 33) terminal 8.
Continuity - Proceed to step 11.
11. 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-C16 (WP 0018, Figure 24)
reconnected. Verify proper opera-
terminal 5 and harness con-
tion of machine (TM 5-2410-240-
nector C-C44 (WP 0018, Fig-
10).
ure 33) terminal 7.
Continuity - Proceed to step 12.
12. Using digital multimeter, test
No Continuity - Proceed to
for continuity (WP 0283)
step 13.
between harness connector
Continuity - Replace lower cab
C-C16 (WP 0018, Figure 24)
wiring harness (WP 0228). Ensure
terminal 5 and all other termi-
all harness connectors are recon-
nals in harness connector C-
nected. Verify proper operation of
C16 (WP 0018, Figure 24).
machine (TM 5-2410-240-10).
0021-6
