TM 5-2410-240-23-1
0021
Table 1. Cab Troubleshooting Without Codes. - Continued.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
N OT E
4. Condenser Fan(s) Do Not Oper-
ate When the A/C Switch Is Acti-
This test assumes engine cooling and A/C system have correct
vated
amount and type of coolant and A/C refrigerant. If low coolant is
suspected, refer to Engine Coolant Service (WP 0043). If low
A/C refrigerant is suspected, refer to A/C System Service (WP
0254).
This test is designed to diagnoss one fault at a time. If system
i
has multiple component failures, it may be necessary to perform
this test again after making initial repair.
Tag wiring harnesses to aid installation.
1. Turn ignition switch and bat-
tery disconnect switch to OFF
position (TM 5-2410-240-10).
2. Connect MSD to machine (WP
3. Turn battery disconnect switch
and ignition switch to ON posi-
tion (TM 5-2410-240-10).
Select Machine Control D6K.
4. Select Manual A/C mode (TM
5-2410-240-10).
5. Turn HVAC blower motor to
highest setting (TM 5-2410-
240-10).
N OT E
Wait at least 30 seconds in order for diagnostic codes to become
active.
6. Monitor diagnostic codes with
Diagnostic/Event Codes - Repair
MSD (WP 0013) Check and
active code (WP 0013).
record any active diagnostic or
No Diagnostic/Event Codes -
event codes.
Proceed to Test Step 1.
Test Step 1.
1. Turn ignition switch and bat-
tery disconnect switch to OFF
position (TM 5-2410-240-10).
2. Disconnect harness connec-
tors T-C2 (WP 0018, Figure
243) and harness T-C4 (WP
0018, Figure 245) from con-
denser fans.
3. Turn battery disconnect switch
and ignition switch to ON posi-
tion (TM 5-2410-240-10).
