TB 9-2320-360-13&P-1
0
A/C DOES NOT OPERATE
INITIAL SETUP:
Maintenance Level
References
Unit Maintenance
TM 9-2320-360-20
Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanic (Item 12, WP 0060 00)
Engine off (TM 9-2320-360-10)
Multimeter (Item 6, WP 0060 00)
Parking brake applied (TM 9-2320-360-10)
Wheels chocked (TM 9-2320-360-10)
START
WARNING
1.
KNOWN INFO
TEST OPTIONS
Read WARNING on
Power to 24 vdc magnetic switch
Voltage test.
page 0015 00-3.
(R22) OK.
ACC circuit to 24 vdc magnetic
REASON FOR QUESTION
switch (R22) OK.
Are 22 to 28 vdc measured on
If 22 to 28 vdc DC are not
wire RED #3 at A/C relay?
POSSIBLE PROBLEMS
measured, A/C will not operate.
A/C switch harness wire RED #2
faulty.
A/C switch harness wire RED #3
faulty.
A/C circuit breaker faulty.
A/C switch harness wire RED #4
faulty.
A/C relay faulty.
A/C switch harness black wire
Go to Step 6 of
NO
faulty.
this fault.
A/C control switch faulty.
A/C switch harness orange wire
YES
faulty.
(0015 00-1 Blank)/0015 00-2
