TM 5-5420-226-20-1 DETAILED TROUBLESHOOTING PROCEDURE Symptom-60 SUPPORT SYSTEM -  VEHICLE LIGHTING FROM STEP (Continued) .02 Check front    accessory harness (CKT    40)   at   basket disconnect for   short    to   ground. First Technician (Operator’s Station) l   Set    MASTER BATTERY switch OFF. l   Displace gage    instrument panel (page 10-111). l   Disconnect basket-indicator panel harness connector from gage    instrument panel. Second Technician (Commander’s Station) l   Reconnect front accessory harness connector to basket-indicator panel harness connector at    basket disconnect. l   Disconnect front accessory harness connector (CKT 40)    from basket-light switch harness connector at basket disconnect (third connector from top). l   Set   ohmmeter to   OHMS X  1  scale and zero meter, or    use   STE/ICE Test No. 91   (page 4-81). l   Connect red    probe of   meter to   contact B   (CKT 40) of   front accessory harness connector and black probe to   ground. l   Check    if   meter    indicates continuity. Does   meter    indicate continuity, thereby indicating a  short? E M ( (^; VEHICLE GROUND /! II I \   CONTACT B Wpf   1:I (CKT    40) BASKET ; ‘ DISCONNECTS 1 --- . Inspect front    acces90ry harness for   bent/broken connector contacts or   loose CKT   40   wire    at   rear    of connectors. l   Repair    connectors if defective (page 10-298). l   If   connectors are   not defective, notify support maintenance of   a  defective front    accesso~ harness. l   Connect front accessory harness connector to   basket- Iight   switch harness connector at   basket disconnect. l   Connect basket-indicator panel harness connector to gage    instrument panel. l   Instaii    gage    instrument panel (page 10-112). CKT r C).  eve-r -1 TA107295 4-606 .