Installation Manual

Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 57
cables for the diagnostic power supply are not required, as diagnostic
hardware should draw no more than 1Amp total.
5.4.3 Pin Information
Please note that all pins shown below in table 5.6 must be connected when
installing a diagnostic connector. Care should also be taken when installing
the connector as incorrect connections at the back of the connector are easily
made.
Pin Description
Diagnostic Connector
J1 OEM 86
way Connector
Switched Battery + Pin A N/A
Switched Battery - Pin B N/A
PDL/CDL + Pin D 20
PDL/CDL - Pin E 28
J1939 - Pin F 26
J1939 + Pin G 25
Table 5.6 Engine Diagnostic Connector Connection List
Figure 5.10 Diagnostic Connector Wiring Diagram
Note: Power supply for the diagnostic connector should be taken from a
switched battery supply and not directly from battery.
E
CDL -
D
CDL +
B
BATT -
A
BATT +
G
CAN A +
F
CAN A -
20
CDL +
28
CDL -
26
J1939 CAN A -
25
J1939 CAN A +
Battery + Battery -
Diagnostic Service Tool
Connector
Engine ECM J1 Connector
120
Ohm
120
Ohm