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
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.
(1) Loosen screw and disconnect vehicle
harness connector MC18.
(2) Place a jumperwire between terminals
A and C on TPS harness connector.
(3) Read resistance between wires 916
and 952 at vehicle harness connector
MC18, terminals A3 and C3.
(a) If there are more than 5 ohms
present, repair wires 916 and/or
952 (see schematic Fig 2-1) or
notify DS Maintenance and
perform Steps (4) through (7).
(b) If there are 5 ohms or less
present, wires 916 and 952
(4) Remove jumperwire.
(5) Connect TPS connector.
(6) Connect vehicle harness connector
MC18 to DDEC ECM and tighten
(7) Close top engine access cover.
Use jumperwire only between terminals
indicated. Failure to comply may result in
damage to DDEC components or wiring.