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 TM 9-2320-364-20-1
Allow engine to cool before performing trouble-
shooting maintenance. If necessary use insulated
pads and gloves. Hot engine components will burn
and cause injury to personnel.
Remove all jewelry such as rings, dog tags,
bracelets, etc. If jewelry or tools contact
positive electrical circuits, a direct short
may result. Damage to equipment, injury or
death to personnel may occur.
RESISTANCE TEST
(1) Read resistance between wire 150
at power harness connector MC17,
terminal C and terminals A, B, C, D, E,
G, H, J, K, and L of injector harness
connectors.
(a) If less than 10,000 ohms are
present, repair power harness
wire 150 and/or injector wire(s)
(see schematic Fig 2-4) or
notify DS Maintenance and
perform Steps (2) and (3)
below.
(b) If more than 10,000 ohms are
present, power harness and
injector wires are OK. Perform
Steps (2) and (3) below.
(2) Connect both injector harness
connectors to DDEC ECM.
(3) Connect engine harness connector to
DDEC ECM and tighten screw.
DDR TEST
(1) Set multimeter select switch to
volts dc.
(2) Turn ON ENGINE switch
(TM 9-2320-364-10).
(3) Select MODE 05 (DDEC ECM
VOLTAGE) on DDR (Para 2-11).
(4) Are 10 to 14 vdc present between two
wires 241 at power harness connector
MC17, terminals A and B and a known
good ground?
(a) If less than 10 vdc are present,
turn OFF ENGINE switch, perform
Steps (5) through (7) below and
go to A4 Code 46, Step 4.
(b) If more than 14 vdc are present,
turn OFF ENGINE switch and
perform Steps (5) through (7) below.
(5) Connect power harness connector
MC17.
(6) Install heat shield and tighten two
mounting screws.
(7) Close top engine access cover.
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