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

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19.

WARNING

KNOWN INFO

TEST OPTIONS

Read WARNING on

Power to fan control switch OK.

page 0012-39.

Continuity test.

Blower operates.

Multimeter.

AC condenser core not blocked or damaged.

REASON FOR QUESTION

Is continuity measured

AC compressor belts OK.

across AC condenser motor

AC heater/evaporator core not blocked or

If continuity is measured, AC

damaged.

ground wire?

condenser motor is faulty.

If not, AC condenser

AC temperature control switch temperature

motor ground wire is

probe OK.

faulty.

Heater cable OK.

AC cable OK.

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Defrost cable OK.

AC compressor clutch OK.

Repair AC condenser

AC harness wire 1154 OK.

motor ground wire

Low pressure switch OK.

(see Appendix A).

Verify repair, go to

AC harness wire 1158 OK.

Step 27 of this fault.

High pressure switch OK.

AC harness wire 1156 OK.

YES

AC condenser assembly harness green wire

OK.

AC condenser motor solenoid ground wire

OK.

Replace AC condenser motor

(WP 0026). Verify repair, go

Fan control switch OK.

to Step 27 of this fault.

Wire 1156 OK.

AC temperature control switch OK.

AC condenser assembly harness black wire

OK.

AC harness wire 1155 OK.

AC condenser motor solenoid OK.

AC condenser motor power wire OK.

POSSIBLE PROBLEMS

AC condenser motor ground wire faulty.

AC condenser motor faulty.

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0012-38