AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM DUCTS DURING AC OPERATIONS (Cont)

DRAFT

TB 9-2320-279-13-1

AC HEATER/EVAPORATOR BLOWER OPERATES BUT NO COLD AIR FROM

DUCTS DURING AC OPERATIONS - Continued

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

12.

WARNING

KNOWN INFO

TEST OPTIONS

Read WARNING on

Power to fan control switch OK.

Continuity test.

page 0012-25.

Blower operates.

Multimeter.

AC condenser core not blocked or damaged.

REASON FOR QUESTION

AC compressor belts OK.

Is continuity measured

If continuity is measured, AC

AC condenser motor solenoid OK.

harness wire 1154 is

across low pressure switch?

AC condenser motor power wire OK.

faulty.

AC condenser motor ground wire OK.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

AC condenser motor OK.

AC condenser assembly harness black wire

OK.

AC harness wire 1155 OK.

Connect AC harness

AC condenser assembly harness green wire

low pressure switch

OK.

connectors and go to

AC condenser motor solenoid ground wire

work package 0015

OK.

(AC Does Not Cool

Or Cools

Fan control switch OK.

Inadequately).

Wire 1156 OK.

AC temperature control switch OK.

YES

AC heater/evaporator core not blocked or

damaged.

AC temperature control switch temperature

Repair AC harness wire 1154

probe OK.

(see Appendix A). Verify

repair, go to Step 27 of this

Heater cable OK.

fault.

AC cable OK.

Defrost cable OK.

AC compressor clutch OK.

AC harness wire 1156 OK.

AC harness wire 1158 OK.

High pressure switch OK.

POSSIBLE PROBLEMS

AC harness wire 1154 faulty.

Low pressure switch faulty.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

0012-24