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
(e) Set A/C fan switch to the ON
4.
Evaporator Assembly Works But
position (WP 0004 00).
Compressor Does Not -
Continued.
(f) Check for 24 VDC on yellow wire
1. If 24 VDC is indicated, repair or
terminal on RFI filter harness to
replace yellow wire in chassis
vehicle ground.
harness connected to high pressure
switch.
2. If 24 VDC is not indicated,
proceed to next step.
(g) Return equipment to normal
condition.
9. Verify power on yellow wire at
evaporator harness.
(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) Disconnect yellow wire connector
from evaporator harness.
(d) Turn ignition key switch to the ON
position (TM 9-2320-363-10).
(e) Set A/C fan switch to the ON
position (WP 0004 00).
(f) Check for 24 VDC on yellow wire
1. If 24 VDC is indicated, repair or
terminal on evaporator harness to
replace yellow wire in RFI
vehicle ground.
harness.
2. If 24 VDC is not indicated,
proceed to next step.
(g) Return equipment to normal
condition.
10. Verify yellow wire continuity to
thermostat.
(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 cover from evaporator
assembly (WP 0017 00).
0013 00-15
