TM 9-2350-261-20-1 1.2.3.4.5.Turn MASTER SWITCH to OFF.Remove front main harness circuit 75A plug (1)from stop light switch jack (2).Remove front main harness circuit 75B plug (3)from stop light switch jack (4).Measure resistance between switch jacks (2) and(4) with switch depressed and with switch released.Does multimeter read infinity with switch depressedand O ohms with switch released?1.2.3.4.5.Install front main harness circuit leads 75A and75B on stop light switch.Remove instrument panel for access. See task:remove instrument panel mounts and ground lead(page 11-2).Remove front main harness plug (1) from lightingcontrol switch jack (2).Measure resistance between front main harnessplug (1) pins K (3) and A (4) with both steeringlevers locked in parking brake position.Does multimeter read 0 ohms?I1. Replace main light switch (page 11-9).2. Verify no faults found.3-90NO1. Replace stop light switch(page 12-132).2. Verify no faults found.NO1. Faulty front main harnesscircuit 75A and/or 75B.I 2. Notify your supervisor.
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