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

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.

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

CONTINUITY TEST

(1) Disconnect AC harness wire 1158 from high

pressure switch connector (WP 0039).

(2) Set multimeter switch to ohms.

(3) Place positive (+) probe of multimeter on high

pressure switch wire 1156 connector.

(4) Place negative (-) probe of multimeter on high

pressure switch wire 1158 connector.

(a) If there is no continuity, replace high pressure

switch (WP 0039). Verify repair, go to Step 27

of this fault.

(b) If there is continuity, repair AC harness wire

1158 (see Appendix A) or replace AC wiring

harness (WP 0046). Verify repair, go to Step 27

of this fault.

HEMAC157