TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-1 STE/ICE BLANK DISPLAY DIAGNOSTIC TROUBLESHOOTING—Continued 0138 00 2Y 1. Remove harness 12354593 plug P1 (1) from STE/ICE distribution box jack J1 (2). 2. Measure voltage between harness 12354593 plug P1 (1) socket A(+) (3) and r (4). 3. Does VTM read less than 17 volts? YES NO 2YN 1. Replace STE/ICE distribution box (WP 0874 00) thru (WP 0877 00). 2. Verify no faults found. 3Y 1. Inspect harness 12354593 circuit 772 terminal (1) on battery positive. 2. Remove shunt guard (2) and inspect harness 12354593 circuit 770 terminal (3) on current shunt. 3. Are all connections tight, clean and free from damage? YES NO 3YN 1. Clean, tighten, or replace parts as necessary. Service vehicle batteries (see your -10). 2. Verify no faults found. 0138 00-2