TM-9-2320-387-24-1
TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1
DECEMBER 1997
CHANGE 1
TM-9-2320-387-24-1 - Page 188 of 1205
TM Q-2320-387-24-1
FUEL SYSTEM
DIAGNOSTIC FLOWCHART
KNOWN INFO
T OPTIONS
LISTEN.
ENGINE WONT SHUT
OFF
DISCONNECT
WIRE 54A FROM
FUEL SOLENOID.
DOES THE ENGINE SHUT OFF?
POSSIBLE
PROBLEMS
REASON
FOR QUESTION
If the engine doesnr
shut off, the
solenoid is mechanically
stuck
open.
FUEL SOLENOID
SOLENOID
WIRING
ROTARY SWITCH
CONTROL
BOX
KNOWN INFO
OPTIONS
1. STE/ICE-R TEST 69
(Page 2-506)
2. MULTIMETER
TURN ROTARY SWITCH TO
STOP. DISCONNECT BODY
CONNECTOR
AT
PROTECTIVE
CONTROL BOX.
IS VOLTAGE 0 AT WIRE 54A AT
FUEL SOLENOID?
FUEL SOLENOID
OK
ENGINE WON’T SHUT
OFF
REASON
FOR QUESTION
If voltage is 0. the problem is in
the wiring harness to the switch
or in the switch.
POSSIBLE
PROBLEMS
SOLENOID
WIRING
ROTARY SWITCH
CONTROL
BOX
iT OPTIONS
1. STE/fCE-R TEST 69
(Page 2-506)
2. MULTIMETER
RECONNECT BODY
CONNECTOR.
DISCONNECT WIRE 11A FROM
ROTARY SWITCH.
IS VOLTAGE 0 AT WIRE 54A AT
FUEL SOLENOID?
REASON FOR QUESTlON
This wire supplies power to the
rotary switch. There should be
no power to the solenoid with it
disconnected.
SOLENOID
WIRING
ROTARY SWITCH
SYSTEM TEST TO VERIFY THERE ARE NO
2-128
OTHER FAULTS.
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