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Ddec, Ddec -17 – Class1 Throttle Information Reference User Manual

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e:\manuals\throttles\LDSBBT.p65

DDEC

DDECIII ECM

510 Throttle Signal

916 5 VDC

952 GROUND

916

952

510

916

952

510

525

10K POT

Vernier Throttle

manuals\throttles\ddc\ddeciiiA.ai

Detroit Diesel DDEC III engine ECMs are ready to connect and operate without any extra
programming. The remote throttle is called the Variable Speed Governor and the signal input
is to ECM terminal D-1.
Interlocking should be accomplished so that the circuit is grounded whenever the remote throttle
should NOT be used. When the circuit is grounded, it is called 525 and when it is operational,
it is called 510.

DDEC ECM

VIH Connector

A-3 D-1 C-3

OEM

Interlocks

+12 VDC

BLACK

GREEN

RED

A
B
C

A
B
C