TM 5-5420-226-20-1 Symptom-17 DETAILED TROUBkESHOOTING PROCEDURE VEHICLE OPERATION -  POWERPLANT, STOPPING r ,* @j%j@&” M, %3 v.: % \ J!, ,,, -la-’ (Continued) Check    engine electrical harness (CKT   54A)   at   front    of engine for   electrical power. Second Technician (Operator’s Station) l   Set    MASTER BATTERY switch OFF. First Technician (Left Top Deck) l   Connect    bulkhead    engine   disconnect harness to engine disconnect. First Technician (Rear of   Crew Compartment) l   Remove    engine   upper   access   cover   (page    17-14). l   Disconnect engine electrical harness (CKT 54A) from fuel    shut off   solenoid lead    connector. l   Connector red    probe of   meter to   center contact of engine harness connector (CKT 54A),    and    black probe to   ground. Second Technician (Operator’s Station) l   Set    MASTER BAITERY switch ON. l   Momentarily set   ENGINE FUEL SHUF OFF switch in   up   position, then release it. First Technician (Rear of   Crew Compartment) l   Check   if  meter    indicates    18 to  30  volts   dc  while   switch   is in   up   position. Does    meter indicate 18  to   30   volts    dc? n Hkr’ GROUND CKT   54A II +-—---–J!---- o 0 0 0 0 ENGINE UPPER    ACCESS COVER FOR   CLARITY QUADRANT ASSEMBLIES NOT    SHOWN Repair engine electrical harness l= (page 10-298). NO CONTACT TA106999 4-310