TM 5-5420-226-20-1 Symptom-2 DETAILED TROUBLESHOOTING PROCEDURE VEHICLE OPERATION -  POWERPLANT, STARTING FROM STEP (Continued) o⁶³ I ~“‘z Check front accessory harness (CKT    54A)    at bulkhead disconnect for   electrical power (MASTER BATTERY switch ON). Second Technician (Operator’s Station) l First l l Set    MASTER BATTERY switch ON. Technician (Commander’s Station) Connect red    probe of   meter to   contact B  (CKT 54A)    of   front accessory harness connector at bulkhead disconnect and black probe to   ground. Check if  meter indicates 18  to   30   volts dc. Does    meter indicate 18  to   30   volts    dc? l Notify support maintenance of   inoperative fuel    shutoff solenoid. s    Install engine access panel (page 17-15). l   Install    front    accessory harness connector at bulkhead disconnect (page 10-270). o^NO \ MM    ‘%%’” BULKHEAD DISCONNECTS (ON    RIGHT BULKHEAD) ) l   Install    front    accessory harness connector at bulkhead disconnect (page 10-270). l Replace fuel    shutoff switch (page 20-29). l Install engine access panel (page 17-15). TA106837 4-148