TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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TM 9-2320-366-20-1 e61. ONE OR BOTH STOPLIGHTS DO NOT ILLUMINATE (CONT) 2-752 Change 1 KNOWN INFO TEST OPTIONS Continuity Test or STE/ICE-R Test #91 Faulty dashboard cable assembly. Faulty main light switch. Faulty diode D1A. Faulty relay K10. POSSIBLE PROBLEMS Blackout stoplights illuminate. Lamp OK. Rear lights cable assembly OK. Composite taillight assembly OK. Turn signal switch OK. Diode D1B OK. Diode D2A OK. 10. Is continuity present from main light switch pin K to pin C? NO Replace main light switch (para 7-17). YES KNOWN INFO TEST OPTIONS REASON FOR QUESTION Voltage Test or STE/ICE-R Test #89 11. WARNING Read WARNING on following page. POSSIBLE PROBLEMS Blackout stoplights illuminate. Lamp OK. Rear lights cable assembly OK. Composite taillight assembly OK. Turn signal switch OK. Diode D1B OK. Diode D2A OK. Main light switch OK. Faulty dashboard cable assembly. Faulty diode D1A. Faulty relay K10. Is 12 VDC present at diode D1A terminal 2? If 12 VDC is not present, wire 22 is faulty. NO Repair wire 22 from diode D1A terminal 2 to connector PX15 socket C (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). YES REASON FOR QUESTION If continuity is not present, main light switch is faulty.