TM 9-2350-277-20-1
SERVICE AND/OR BLACK OUT STOP LIGHTS MALFUNCTIONContinued
0033 00
3Y
1. Turn MASTER SWITCH to OFF.
2. Remove harness 12349881 circuit 75A plug (1) from switch jack
(2).
3. Remove harness 12349881 circuit 75B plug (3) from switch jack
(4).
4. Measure resistance between switch jacks (2) and (4) with switch
depressed and with switch released.
5. Does multimeter read infinity with switch depressed and 0 ohm
with switch released?
YES
NO
3YN
1. Replace brake light switch
(WP 0332 00).
2. Verify no faults found.
4Y
1. Install harness 12349881 circuit leads 75A and 75B on stop
sensitive switch.
2. Remove instrument panel for access (WP 0295 00).
3. Remove harness 12349881 plug (1) from lighting control switch
jack (2).
4. Measure resistance between harness 12349881 plug (1) pins K (3)
and A (4) with brake pedal depressed.
5. Does multimeter read less than 0 ohm?
YES
NO
4YN
1. Faulty harness 12349881 circuit 75A
and/or 75B. Beyond unit
maintenance repair.
2. Notify supervisor.
0033 00-2