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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 TPS
harness connector MC6, terminals A
and B.
(2) Set multimeter select switch to ohms.
(3) Read resistance between wires 417
and 952 at vehicle harness connector
MC18, terminals C3 and D2.
(a) If there are more than 5 ohms
present, remove jumperwire and
repair wires 417 and/or 952
(See schematic Fig 2-1) or notify
DS Maintenance.
(b) If there are 5 ohms or less, go to
Step (4) below.
(4) Read resistance between wires 417,
916 and 952 at vehicle harness
connector MC18, terminals D2, A3
and C3.
(a) If there are more than 5 ohms
present, remove jumperwire and
repair wires 417, 916 and/or 952
(See schematic Fig 2-1) or notify
DS Maintenance.
(b) If there are 5 ohms or less,
wires 417, 916 and 952 are OK.
(5) Remove jumperwire.
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