TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download
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TEST OPTIONS REASON FOR QUESTION KNOWN INFO NO YES 2. TM 9-2320-366-20-2 e148. M1088/M1089 WORKLIGHTS DO NOT ILLUMINATE (CONT) 2-1542 Change 1 Continuity Test or STE/ICE-R Test #91 POSSIBLE PROBLEMS Circuit breakers CB71, CB72, and CB74 OK. Hazard lights illuminate. Light bulb OK. Auxiliary panel cable assembly OK. Relay K9 OK. Diode D2B OK. Faulty worklights switch. Faulty dashboard cable assembly. Faulty relay K12. If continuity is not present, worklights switch is faulty. Is continuity present from worklight switch terminal 1 to terminal 5? Replace worklights switch (para 7-18).