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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.
Use jumperwire only between terminals
indicated. Failure to comply may result in
damage to DDEC components or wiring.
DDEC ECM connector terminals are easily
damaged. Use care when connecting and
disconnecting connectors.
RESISTANCE TEST
(1) Place jumperwire between terminals A
and B at SRS harness connector.
(2) Read resistance between wires 112
and 111 at engine harness connector,
terminals S1 and S2.
(a) If there are more than 5 ohms are
present, remove jumperwire and
repair wires 112 and/or 111
(see schematic Fig 2-2) or notify
DS Maintenance and perform
Step (3) below.
(b) If there are 5 ohms or less
present, remove jumperwire,
perform Step (3) below and go to
Step 6 of this Fault.
(3) Connect engine harness connector
tighten screw.
VISUAL INSPECTION
(1) Check terminals at SRS connector
(sensor and harness side) for
damage; bent, corroded and unseated
pins or terminals.
(a) If connectors and/or terminals are
damaged, repair connectors
(Para 7-101).
(b) If connectors and/or terminals are
free of damage, notify DS
Maintenance.
(2) Connect SRS connector.
(3) Install DDEC ECM (Para 7-56).
(4) Close top engine access cover.
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