TB 9-2320-360-13&P-1
A/C BLOWER DOES NOT OPERATE (LOW, MEDIUM, AND/OR HIGH) - CONTINUED.
4.
KNOWN INFO
WARNING
Read WARNING on
A/C switch harness control switch
page 0016 00-7.
connector OK.
Power to A/C control switch OK.
Does A/C blower operate
A/C switch harness black wire OK.
when A/C control switch is
A/C blower black wire OK.
set to high blower speed
A/C blower OK.
TEST OPTIONS
A/C blower orange wire OK.
position?
Visual Inspection.
POSSIBLE PROBLEMS
REASON FOR QUESTION
A/C evaporator harness orange
If A/C blower operates at high
wire faulty.
speed, high speed blower circuit
A/C switch harness orange wire
is OK.
faulty.
A/C evaporator harness yellow
wire faulty.
Go to Step 12
A/C switch harness yellow wire
NO
of this fault.
faulty.
A/C control switch faulty.
A/C switch harness wire RED #1
YES
faulty.
A/C blower resistor faulty.
A/C evaporator harness wire RED
#1 faulty.
5.
WARNING
KNOWN INFO
TEST OPTIONS
Read WARNING on
A/C switch harness control switch
Visual Inspection.
page 0016 00-7.
connector OK.
REASON FOR QUESTION
Power to A/C control switch OK.
Does A/C blower operate
If A/C blower operates at medium
A/C switch harness black wire OK.
when A/C control switch is
speed, medium speed blower
A/C blower black wire OK.
set to medium blower speed
setting circuit is OK.
A/C blower OK.
position?
A/C blower orange wire OK.
A/C evaporator harness orange
wire OK.
A/C evaporator harness orange
wire OK.
A/C switch harness orange wire
OK.
POSSIBLE PROBLEMS
Go to Step 9
NO
A/C evaporator harness yellow
of this fault.
wire faulty.
A/C switch harness yellow wire
faulty.
YES
A/C control switch faulty.
A/C switch harness wire RED #1
faulty.
A/C blower resistor faulty.
A/C evaporator harness wire RED
#1 faulty.
0016 00-6