DRAFT
TB 9-2320-364-13&P-1
AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM
DUCTS DURING AC OPERATIONS - Continued
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
6.
KNOWN INFO
TEST OPTIONS
Power to fan control switch OK.
Audible test.
Does AC compressor clutch
Blower operates.
REASON FOR QUESTION
engage when engine start
AC condenser core not blocked or damaged.
If AC compressor clutch does
switch is turned on, when fan
AC compressor belts OK.
not engage, AC
control switch is set to an on
AC heater/evaporator core not blocked or
compressor will not
position and temperature
damaged.
operate.
control switch is set to the
Temperature control switch temperature
coldest temperature position?
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
probe OK.
AC harness wire 1155 OK.
AC condenser assembly harness black wire
OK.
AC condenser motor solenoid OK.
AC condenser motor red wire OK.
AC condenser motor ground wire OK.
Go to Step 10 of this
NO
AC condenser motor OK.
fault.
AC condenser assembly harness green wire
OK.
YES
AC condenser motor solenoid ground wire
OK.
Fan control switch OK.
Wire 1156 OK.
Temperature control switch OK.
POSSIBLE PROBLEMS
Heater cable faulty.
AC cable faulty.
Defrost cable faulty.
AC harness wire 1435 faulty.
AC compressor clutch faulty.
AC harness wire 1154 faulty.
Low pressure switch faulty.
AC harness wire 1156 faulty.
AC harness wire 1158 faulty.
High pressure switch faulty.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
0012-12
