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 TM 9-2320-366-20-2 POSSIBLE PROBLEMS Voltage Test or STE/ICE-R Test #89 WARNING Read WARNING on following page. 12. 2-1556 Change 1 e148. M1088/M1089 WORKLIGHTS DO NOT ILLUMINATE (CONT) Circuit breakers CB71, CB72, and CB74 OK. Hazard lights illuminate. Light bulb OK. Auxiliary panel cable assembly OK. Relay K9 OK. Worklights switch OK. Relay K12 OK. Replace diode D2B (para 7-9). Repair wire 1672 from diode D2B terminal 3 on PDP to connector P913 socket 3 (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). Faulty dashboard cable assembly. Faulty diode D2B. Is 12 VDC present at diode D2B terminal 3? If 12 VDC is not present, diode D2B is faulty. If 12 VDC is present, wire 1672 is faulty.