TB-9-2320-302-13-P-3
CREW PROTECTION KIT; AIR CONDITIONING KIT PART 3 OF 3
TECHNICAL BULLETIN; OPERATOR’S, UNIT, AND DIRECT SUPPORT, MAINTENANCE MANUAL, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LIST
MARCH 2008
TB-9-2320-302-13-P-3 - Page 67 of 240
TB 9-2320-302-13&P-3
A/C TROUBLESHOOTING PROCEDURES - CONTINUED
0013 00
0013 00-3
A/C ELECTRICAL SYSTEM - CONTINUED
1.
A/C System Does Not Function -
Continued.
(b) Remove connector from power
relay wiring harness (WP 0021 00).
(c) Remove connector from power
relay wiring harness (WP 0021 00).
(d) Turn ignition key switch to the ON
position (TM 9-2320-363-10).
(e) Check for 24 VDC between red
wire terminal and black wire
terminal of power relay wiring
harness.
1. If 24 VDC is indicated, proceed to
step 11.
2. If 24 VDC is not indicated,
proceed to next step.
4. Verify power to power relay.
(a) Remove connector from power
relay (WP 0021 00).
(b) Check for 24 VDC on orange wire
terminal on power relay connector
to vehicle ground.
1. If 24 VDC is indicated, proceed to
step 7.
2. If 24 VDC is not indicated,
proceed to next step.
5. Verify 20 Amp fuse is not blown.
(a) Remove 20 Amp fuse from holder
(WP 0021 00).
(b) Check continuity between fuse
terminals.
1. If fuse does not have continuity
replace 20 Amp fuse.
2. If fuse does have continuity,
proceed to next step.
(c) Return equipment to normal
condition.
6. Verify power to fuse.
(a) Check for 24 VDC on orange wire
terminal (from 24 VDC power) on
20 Amp fuse holder to vehicle
ground.
1. If 24 VDC is not indicated, replace
orange wire from 24 VDC power.
2. If 24 VDC is indicated, replace
orange wire from 20 Amp fuse to
power relay.
(b) Return equipment to normal
condition.
7. Verify ignition power to power relay.
(a) Turn ignition key switch to the OFF
position (TM 9-2320-363-10).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Back to Top
