TB 9-2320-360-13&P-1
A/C DOES NOT OPERATE - CONTINUED.
2.
WARNING
KNOWN INFO
Read WARNING on
Power to 24 vdc magnetic switch
page 0015 00-5.
(R22) OK.
ACC circuit to 24 vdc magnetic
Are 22 to 28 vdc measured on
switch (R22) OK.
orange wire at A/C relay when
A/C switch harness wire RED #2
engine switch is set to ON
OK.
TEST OPTIONS
position?
A/C switch harness wire RED #3
Voltage test.
OK.
A/C circuit breaker OK.
REASON FOR QUESTION
POSSIBLE PROBLEMS
If 22 to 28 vdc is not present A/C
A/C switch harness wire RED #4
faulty.
A/C relay faulty.
A/C switch harness black wire
Go to Step 4 of this
faulty.
NO
fault.
A/C control switch faulty.
A/C switch harness orange wire
faulty.
YES
3.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING on
Power to 24 vdc magnetic switch
Voltage test.
page 0015 00-5.
(R22) OK.
ACC circuit to 24 vdc magnetic
REASON FOR QUESTION
Are 22 to 28 vdc measured on
switch (R22) OK.
orange wire at A/C control
If 22 to 28 vdc are measured, A/C
A/C switch harness wire RED #2
control switch is faulty. If not,
switch when engine switch is
OK.
orange wire is faulty.
set to ON position?
A/C switch harness wire RED #3
OK.
A/C circuit breaker OK.
A/C switch harness wire RED #4
OK.
A/C relay OK.
A/C switch harness black wire OK.
Repair orange wire
POSSIBLE PROBLEMS
Fig j) or notify DS
A/C control switch faulty.
NO
Maintenance. Verify
A/C switch harness orange wire
repair, go to Step 8 of
faulty.
this fault.
YES
Replace A/C control
Verify repair, go to
Step 8 of this fault.
0015 00-4