TM 5-5420-226-20-1 ( ( -- Symptom-69 DETAILED TROUBLESHOOTING PROCEDURE SUPPORT SYSTEM -   VEHICLE LIGHTING (Continued) ‘Check basket-control panel accessories harness connector (CKT    514-515) at   basket disconnect for electrical power. First Technician (Operator’s Station) l   Set   MASTER BATTERY switch OFF. l   Install    FOOT DIMMER switch (page 10-170). Second Technician (Commander’s Station) l   Displace    basket-control panel accessories harness connector from basket disconnect. l   Connect    red   probe    of  meter   to  contact    “C”    (CKT    514- 5 15)  of   basket-control panel accessories harness connector and    black probe to   ground. First Technician (Operator’s Station) l   Set    MASTER BATTERY switch ON. l   Check   if   meter   indicates 18  to   30   volts    dc. Does    meter indicate 18  to   30   volts dc? l l l l Inspect front accessories harness for   bent/broken connector contacts or   loose CKT    514-515 wire    at   rear    of connectors. Repair    connectors if  defective (page 10-298). If   connectors are   not defective, notify support maintenance of   a  defective front accessory harness. Install basket-control panel accessories harness connector to   basket dleconnect. oYES >^NO MJ D -n + o 11 11 i_O VEHICLE II GROUND ~ t FOR   CLARITY QUADRANT ASSEMBLIES NOT   SHOWN B- TA107359 4-670