TM 9-2350-261-20-1
1.
2.
3.
4.
5.
6.
Turn MASTER SWITCH to OFF.
Remove hull front access cover (page 24-24).
Remove front main harness plug (1) from dimmer
switch jack (Z).
Turn MASTER SWITCH to ON.
Measure voltage between front main harness
plug (1) pin C (3) and ground.
Does multimeter read less than 17 volts?
1.
2.
3.
4.
5.
Turn MASTER SWITCH to OFF.
Remove instrument panel for access. See task:
remove instrument panel mounts and ground lead
(page 11-2).
Remove front main harness circuit 514/515 (1) and
520 (2) from IR/BO selector switch jacks
(3 and 4).
Measure resistance between IR/BO selector switch
jacks (3 and 4).
Does multimeter read 0 ohms?
GO TO PAGE 3-88
1. Install dimmer switch and
front main harness plug on
dimmer switch.
2. Replace IR/BO selector
switch (page 11-7).
3. Verify no faults found.
3-84
