51
Electrical
Requirements
Location of the J-1939 Control Data Link on Detroit Diesel DDECIII and IV Engines
FROM
TO
DESCRIPTION
K1-F
K4-A
J-1939 High +
K1-E
K4-B
J-1939 Low -
K1-D
K4-C
J-1939 Shield
J-1939 SHIELD
J-1939 (+)
J-1939 (-)
F
E
D
C
B
A
K4
K1
Electronic Control Module (ECM)
Communication Connector