TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311-20-1 3-3 TROUBLESHOOTING CHART — CONTINUED x. INSTRUMENT PANEL/PORTABLE INSTRUMENT (2) ALL INSTRUMENT PANEL LIGHTS FAIL TO PANEL LIGHT CIRCUIT — CONTINUED OPERATE . General mechanic’s tool kit (item 64, Appx H) Portable instrument panel cover removed (para 8-17) Multimeters (item 36, Appx H) Driver’s instrument panel released (para 8-17) TA-1 probe-kit (item 43, Appx H) A 1. Disconnect bulkhead-to-driver’s instrument panel wiring harness from light switch. 3. Place a jumper wire from socket F (lead 15) to socket B (lead 40). 4. Turn MASTER and instrument panel light switches ON and check all instrument panel lights for operation. 5. Turn MASTER and instrument panel light switches OFF. Do all panel lights operate? I Replace light switch (para 8-1 7). I CONTINUED ON NEXT PAGE 3-278