TM-9-2350-261-20-1 Unit Maintenance Manual Volume 1 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download
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TM 9-2350-261-20-1 HORN DOES NOT OPERATE — Continued 0037 00 2Y 1. Remove right headlight wiring harness circuit 25 plug (1) from horn jack (2). 2. Turn MASTER SWITCH to ON (see your -10). 3. Measure voltage between right headlight wiring harness circuit 25 plug (1) and ground with horn button depressed. 4. Does multimeter read less than 17 volts? 2YN 1. Replace horn (WP 0255 00). 2. Verify no faults found. 0037 00-2