TB 9-2320-360-13&P-1
A/C BLOWER DOES NOT OPERATE (LOW, MEDIUM, AND/OR HIGH) - CONTINUED.
8.
KNOWN INFO
WARNING
Read WARNING on
A/C switch harness control switch
page 0016 00-11.
connector OK.
Power to A/C control switch OK.
Is continuity measured
A/C switch harness black wire OK.
A/C blower black wire OK.
across A/C control switch low
TEST OPTIONS
A/C blower OK.
blower speed contacts, when
Continuity Test.
A/C blower orange wire OK.
switch is set to low blower
A/C evaporator harness orange
speed position?
REASON FOR QUESTION
wire OK.
A/C switch harness orange wire
If continuity is measured, A/C
OK.
switch harness wire RED #1 is
A/C evaporator harness yellow
faulty. If not, A/C control switch is
wire OK.
faulty.
A/C switch harness yellow wire
Replace A/C control
OK.
switch (WP 0021 00).
NO
A/C blower resistor OK.
Verify repair, go to
A/C evaporator harness wire RED
Step 18 of this fault.
#1 OK.
POSSIBLE PROBLEMS
YES
A/C switch harness wire RED #1
Repair A/C switch
faulty.
harness wire RED #1
A/C control switch faulty.
(See WP 0057 00, Fig j)
or notify DS Maintenance.
Verify repair, go to Step
18 of this fault.
9.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING on
A/C switch harness control switch
Visual Inspection.
page 0016 00-11.
connector OK.
REASON FOR QUESTION
Power to A/C control switch OK.
If A/C blower does not operate in
A/C switch harness black wire OK.
Does A/C blower operate
medium and low blower speed
A/C blower black wire OK.
when A/C control switch is
switch positions, A/C blower
A/C blower OK.
set to low blower speed
resistor is faulty.
A/C blower orange wire OK.
position?
A/C evaporator harness orange
wire OK.
A/C switch harness orange wire
OK.
A/C switch harness wire RED #1
OK.
A/C evaporator harness wire RED
Replace A/C blower resistor
#1 OK.
NO
(WP 0023 00). Verify repair,
POSSIBLE PROBLEMS
go to Step 18 of this fault.
A/C blower resistor faulty.
A/C evaporator harness yellow
YES
wire faulty.
A/C switch harness yellow wire
faulty.
A/C control switch faulty.
0016 00-10