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
11. Disconnect single harness
Function in One or More Speeds
connector at terminal motor on
- Continued
A/C blower motor resistor.
Figure 28. A/C Blower Motor Resistor Terminal Motor.
0021
12. Using digital multimeter, test
No Continuity - Replace A/C wir-
for continuity (WP 0283)
ing harness (WP 0245). Ensure all
between harness connector
harness connectors are recon-
AC-C2 (WP 0018, Figure 2)
nected. Verify proper operation of
terminal 1 and single harness
machine (TM 5-2410-240-10).
connector from terminal motor
Continuity - Proceed to step 13.
on A/C blower motor resistor.
13. Disconnect harness connec-
tor C-C44 (WP 0018, Figure
33) from AC-C1 (WP 0018,
Figure 1).
14. Using digital multimeter, test
No Continuity - Replace A/C wir-
for continuity (WP 0283)
ing harness (WP 0245). Ensure all
between harness connector
harness connectors are recon-
AC-C1 (WP 0018, Figure 1)
nected. Verify proper operation of
terminal 3 and single harness
machine (TM 5-2410-240-10).
connector from terminal 1 on
Continuity - Proceed to step 15.
A/C blower motor resistor.
15. Disconnect harness connec-
tor C-C74 (WP 0018, Figure
45) from AC-C4 (WP 0018,
Figure 272).