TM 5-5420-226-20-1 Symptom-58 DETAILED TROUBLESHOOTING PROCEDURE ( ( SUPPORT SYSTEM -  VEHICLE LIGHTING (Continued) ‘Check basket-light switch harness (CKT    40)   for continuity from    connector at   LIGHTING CONTROL switch to   basket disconnect. First Technician (Operator’s Station) l l l l l Set    MASTER BATTERY switch OFF. Displace master control panel (page 10-33). Disconnect basket-light switch harness connector from LIGHTING CONTROL switch. Set  multimeter to  OHMS Xl    scale   and   “zero” meter,    or use   STE/ICE Test No.    91   (page 4-83). Connect black   probe   of  meter    to  contact B  (CKT 40)  of basket-light sw”itch  harness connector at   LIGHTING CONTROL switch. Second Technician (Commander’s Station) l   Connect    red   probe    of   meter   to   contact B  (CKT 40)   of basket-light switch harness connector at   basket- disconnect. l   Check   if   meter   indicates    continuity. Doea    meter indicate continuity? r l l l l l Inspect basket-iight switch harness for   bent/broken connector contacts or   loose CKT   40   wire   at   rear   of connectors. Repair   connectors if  defective (page 10-298). If  connectors are   not defective, notify support maintenance of   a  defective basket-light switch harness. Install master controi panei (page 10-33). Install    basket-light switch harneaa   connector    at  basket dleconnect. m’ LJ OL    ON co ON OF o~   OE CONTACT B I^{(CKT    40)}_* c1 _l,_lA He l K l B l N l L ‘e •~ cc lE  l D CONTACT ‘B’   (CKT   40)   OF BASKET-LIGHT SWITCH HARNESS CONNECTOR 4 MASTER CONTROL PANEL (REAR    VIEW) l   Replace   LIGHTING   CONTROL switch   (page   10-54). l   Instaii    basket-iight switch harness connector at   basket disconnect. CONTACT TA107287 4-598