TB 9-2320-360-13&P-1
A/C BLOWER DOES NOT OPERATE (LOW, MEDIUM, AND/OR HIGH) - CONTINUED.
KNOWN INFO
12.
WARNING
A/C switch harness control switch
Read WARNING on
connector OK.
page 0016 00-15.
Power to A/C control switch OK.
A/C switch harness black wire OK.
Are 22 to 28 vdc measured on
A/C blower black wire OK.
TEST OPTIONS
orange wire at A/C switch
A/C blower orange wire OK.
harness evaporator
Voltage Test.
A/C blower OK.
connector, when A/C control
A/C evaporator harness yellow
switch is set to the high
REASON FOR QUESTION
wire OK.
blower speed position?
A/C switch harness yellow wire
If 22 to 28 vdc is measured, A/C
OK.
evaporator harness orange wire
A/C switch harness wire RED #1
is faulty.
OK.
A/C blower resistor OK.
A/C evaporator harness wire RED
Go to Step 13
#1 OK.
NO
of this fault.
POSSIBLE PROBLEMS
A/C evaporator harness orange
wire faulty.
YES
Repair A/C evaporator
A/C switch harness orange wire
harness orange wire
faulty.
(See WP 0057 00, Fig j),
A/C control switch faulty.
or replace evaporator
harness (WP 0027 00).
Verify repair, go to Step
18 of this fault.
KNOWN INFO
TEST OPTIONS
13.
WARNING
A/C switch harness control switch
Continuity Test.
Read WARNING on
page 0016 00-15.
connector OK.
Power to A/C control switch OK.
REASON FOR QUESTION
A/C switch harness black wire OK.
Is continuity measured
If continuity is measured, A/C
A/C blower black wire OK.
across A/C control switch
switch harness orange wire is
A/C blower orange wire OK.
high blower speed contacts,
faulty. If not, A/C control switch is
A/C blower OK.
when A/C control switch is
faulty.
A/C evaporator harness yellow
set to high blower speed
wire OK.
A/C switch harness yellow wire
OK.
A/C switch harness yellow wire
OK.
A/C switch harness wire RED #1
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.
A/C evaporator harness orange
YES
wire OK.
POSSIBLE PROBLEMS
Repair A/C switch
harness orange wire (See
A/C switch harness orange wire
WP 0057 00, Fig j). Verify
faulty.
repair, go to Step 18 of
A/C control switch faulty.
this fault.
0016 00-14
