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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.
DDEC ECM connector terminals are easily
damaged. Use care when connecting and
disconnecting connectors.
RESISTANCE TEST
(1) Disconnect SRS harness connector.
(2) Read resistance between wires 112
and 111 at engine harness connector,
terminals S1 and S2.
(a) If there are less than 10,000 ohms
present, repair wires 112 and 111
(see schematic Fig 2-2) or notify
DS Maintenance.
(b) If there are more than 10,000
ohms present, go to Step (3)
below.
(3) Read resistance between wire 112 at
engine harness connector, terminal
S1 and a known good ground.
(a) If there are less than 10,000 ohms
present, repair wire 112 (see
schematic Fig 2-2) or notify DS
Maintenance.
(b) If there are more than 10,000
ohms present, go to Step (4)
below.
(4) Read resistance between wire 111 at
engine harness connector, terminal
S2 and a known good ground.
(a) If there are less than 10,000 ohms
present, repair wire 111 (see
schematic Fig 2-2) or notify DS
Maintenance.
(b) If there are more than 10,000
ohms present, wire 111 is OK.
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