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 TM 9-2320-364-20-1
DDEC ECM connector terminals are easily
damaged. Use care when connecting and
disconnecting connectors.
Use jumperwire only between terminals
indicated. Failure to comply may result
in damage to DDEC components or wiring.
RESISTANCE TEST
(1) Loosen screw and disconnect vehicle
harness connector MC18.
(2) Place jumperwire across terminals J
and K at DDL connector MC13.
(3) Are there 5 ohms or less present
between wires 900 and 901 at vehicle
harness connector MC18, terminals
C1 and C2?
(a) If there are more than 5 ohms or
an open circuit present, remove
jumperwire and repair wires 900
or 901 (see schematic Fig 2-1) or
notify DS Maintenance.
(b) If there are less than 5 ohms
present, remove jumperwire and
go to Step 5 of this Fault.
RESISTANCE TEST
(1) Are there more than 5 ohms present
between wires 900 and 901 at vehicle
harness connector MC18, terminals
C1 and C2?
(a) If there are less than 5 ohms,
repair wires 900 and/or 901 (see
schematic Fig 2-1) or notify DS
Maintenance and perform Steps
(2) through (4) below.
(b) If there are more than 5 ohms,
wires 900 and 901 are OK.
Perform Steps (2) through (4)
below.
(2) Remove jumperwire from DDL
harness connector MC13.
(3) Install vehicle harness connector
MC18, and tighten screw.
(4) Close top engine access cover.
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