TB 9-2320-302-13&P-3
A/C TROUBLESHOOTING PROCEDURES - CONTINUED
0013 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
A/C ELECTRICAL SYSTEM - CONTINUED
(f) Return equipment to normal
2.
A/C System Energized But
condition.
Evaporator Assembly Does Not
Function - Continued.
4. Verify blower low speed circuit to speed
resistor.
(a) Disconnect connector to speed
resistor (WP 0017 00).
(b) Check continuity between yellow
1. If continuity is not indicated,
wire terminal on A/C fan switch
repair or replace yellow wire.
and yellow wire terminal on speed
2. If continuity is indicated, replace
resistor connector.
speed resistor.
(c) Return equipment to normal
condition.
5. Verify A/C fan switch medium speed
setting.
(a) Turn ignition key switch to the OFF
position (TM 9-2320-363-10).
(b) Set A/C fan switch to the OFF
position (WP 0004 00).
(c) Remove A/C fan switch connector
from A/C fan switch inside
evaporator assembly (WP 0017
(d) Set fan switch to MED (WP 0004
(e) Check continuity between contact
1. If continuity is not indicated,
"B" and contact "M" on A/C fan
replace selector switch (WP 0017
switch.
2. If continuity is indicated, proceed
to next step.
(f) Return equipment to normal
condition.
6. Verify blower medium speed circuit to
speed resistor.
(a) Disconnect connector to speed
resistor (WP 0017 00).
0013 00-8