TM 9--2350--292--20--10119 00--1BLACKOUT STOPLIGHTS FAIL TO OPERATE.0119 00THIS WORK PACKAGE COVERS:Blackout Stoplights Fail To OperateINITIAL SETUP:Tools and Special ToolsGeneral mechanic’s tool kit (item 1, WP 0717 00)Multimeter (item 84, WP 0717 00)Equipment ConditionsVehicle MASTER switch OFF (TM 9--2350--292--10)Air intake grilles above battery compartment open(TM 9--2350--292--10)Personnel RequiredTwoIs 24 V dc present?1. Remove left and right stoplight door assembliesand blackout stoplight lamp (WP 0276 00).2. Turn MASTER switch ON and main light to BODRIVE or BO MARKER position(TM 9--2350--292--10).3. Place red multimeter lead on lamp holder contactand black lead to ground. Check for voltage.4. Turn MASTER switch and main light switch toOFF (TM 9--2350--292--10).noyesReplace blackout stoplightlamp (WP 0276 00). Verifyfault is corrected.ACONTINUED ON NEXT PAGEWARNINGRemove rings, bracelets, wristwatches,and neck chains before working on anyvehicle. Jewelry can catch on equip-ment and cause injury, or may shortacross an electrical circuit and causesevere burns or electrical shock.Is continuity present when brake pedal is locked and notpresent when brake pedal is released?1. Remove subfloor plate #16 (WP 0454 00).2. Disconnect two circuit 75 wires of harness4W105 from stoplight switch (WP 0250 00).3. Place one multimeter lead in one stoplightswitch connector and place the other lead in theother stoplight switch connector.4. Lock brake pedal (TM 9--2350--292--10). Checkfor continuity.5. Release brake pedal (TM 9--2350--292--10) andcheck for continuity.BnoyesReplace stoplight switch(WP 0250 00). Verify faultis corrected.
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