TB-9-2320-279-13-1

TECHNICAL BULLETIN; AIR CONDITIONING SYSTEM

OPERATOR’S, UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LISTS

DECEMBER 2005

TB-9-2320-279-13-1 - Page 165 of 524

TB 9-2320-279-13-1

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AC COMPRESSOR DOES NOT SHUT OFF OR CYCLES CONSTANTLY - Continued

DRAFT

WARNING

Remove rings, bracelets, wristwatches, neck chains, and any other jewelry before working around

vehicle.

Jewelry can catch on equipment and cause serious injury.

Jewelry or tools may short

across electrical circuits or terminals and cause damage to equipment or severe burns or

electrical shock to personnel.

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HEMAC174

CONTINUITY TEST

(1) Set multimeter switch to ohms.

(2) Place positive (+) probe of multimeter on AC

condenser assembly harness green wire at AC

harness connector, terminal B.

(3) Place negative (-) probe of multimeter on AC

condenser assembly harness green wire at AC

condenser fan motor solenoid terminal.

(a) If there is no continuity, repair AC condenser

assembly harness green wire

(see

Appendix A).

Verify repair,

go to Step 14 of this

fault.

(b) If there is continuity, connect AC harness AC

condenser assembly connector (WP 0028) and

go to Step 13 of this fault.

CONTINUITY TEST

(1) Set multimeter switch to ohms.

(2) Place positive (+) probe of multimeter on ground

wire at AC condenser motor solenoid terminal.

(3) Place negative (-) probe of multimeter on a known

good ground.

(a) If there is no continuity, repair AC condenser

motor solenoid ground wire (see Appendix A).

Verify repair, go to Step 14 of this fault.

(b) If there is continuity, replace AC condenser

motor solenoid (WP 0027).

Verify repair, go to

Step 14 of this fault.