ENGINE AUTOMATIC FIRE EXTINGUISHING SYSTEM
FIRE DETECTION TEST AND ALARM
POWER ON LAMP DOES NOT LIGHT WHEN MASTER SWITCH
PANEL INDICATORS
IS ON. All other electrical systems operate.
(EFFECTIVE FOR VEHICLES 1 thru 344)
Before troubleshooting AFES, check the following
Make sure MASTER switch is set to OFF (TM 9-2350-267-10).
Make sure engine AFES T/A panel Maintenance switch is turned to
maintenance position (p 14-14.3).
NOTE
Instead of using multimeter for voltage check, STE/ICE troubleshooting,
INDIVIDUAL BATTERY VOLTAGE TEST-TEST 89 may be performed.
Instead of using multimeter for continuity check, STE/ICE troubleshoot-
ing, TEST 91 maybe performed.
WARNING
Turn crew T/A panel Maintenance switch to vertical position
and MASTER switch OFF before disconnecting any electrical
wiring harnesses. Failure to comply may result in discharge of
fire extinguisher cylinders, electrical shock and injury to personnel.
NOTE
Wiring harness 12352354 is an optional replacement for
wiring harness 12351500.
A Disconnect wiring harness 12351500 or 12352354 connector P1 from Engine
T/A panel.
B
Place red lead of multimeter in socket D and black lead of multimeter in socket
A.
C Check for 24 ± 3 vdc. If voltage is indicated go to step U. If no voltage is
indicated, to to step D.
2-281 Change 4
TM 9-2350-267-2