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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 WAIT INDICATOR LIGHT DOESN’T LIGHT—Continued 0019 00 6Y 1. Check between WAIT indicator’s (1) negative terminal and upper instrument panel support (2) for continuity. 2. Does multimeter read 0 ohm? YES NO 6YN 1. Tighten screw securing instrument panel to support. 2. Verify no faults found 7Y 1. Remove front main wiring harness 12349881–2 plug (1) from engine compartment bulkhead (2). 2. Check continuity from plug pin K (3) to WAIT indicator (4) positive terminal. 3. Does multimeter read 0 ohm? YES NO 7YN 1. Faulty front main wiring harness 12349881–2. Beyond unit maintenance repair. 2. Notify supervisor. 0019 00-4