TM 5-3805-262-203-10. INSTRUMENT PANELS TROUBLESHOOTING (CONT)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION7. INSTRUMENT CLUSTER GAGES DO NOT OPERATE.Step 1.Place ignition key switch in on position. Warning lights at bottomof instrument cluster should be on.a. If at least one warning light is on, refer to troubleshootingfor individual gage (MALFUNCTIONS 8 thru 11 below).b. If all warning lights are off, go to step 2 below.Step 2.Press bottom 5 ampere circuit breaker button located on right in-strument panel.a. If at least one warning light is on, circuit breaker wast r i p p e d.b. If all warning lights are off, go to step 3 below.Step 3.Place vehicle lights switch at right instrument panel in several po-sitions and check operation of loader lights.a .b .8. FUEL LEVEL GAGEIf at least one loader light is on, place vehicle lights switchin off position. Check wiring connection between ignition switchACC terminal and 5 ampere circuit breaker at right instrumentpanel for open circuit. Repair or replace wiring as necessary(page 5-168).If wiring is okay, remove right instrument panel (page 5-48) andreplace 5 ampere circuit breaker (page 5-53).If at least one loader light is not on, refer to page 3-81 lightsystems troubleshooting.DOES NOT OPERATE.Step 1.Disconnect tan-black(page 5-117).T e l l a n a s s i s t a n t toground.wire from terminal of fuel level sending unithold tan-black wire terminal against loaderPlace ignition key switch in on position and watch fuel level gage.Gage pointer should move to bottom.a. If fuel level gage pointer moves to bottom, refer to page 3-93sending units troubleshooting.b. If fuel level gage pointer does not move to bottom, go to step 2below.3-78
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