Qualcomm OBDII J1708 User Manual download pdf (Page 12)

Suggested Installation Connection Points

April 6, 2010

Truck

Make & Model

BATT+

Ignition

Ground

J1708 Connection

Points

J1939

Connection

Points

TTRACS

WESTERNSTAR

All models

J1-J6 of Fuse Panel

J7-J12 of Fuse

Panel

System ground can

be made either

below main fuse

panel bracket or

back of ignition

switch.

FOR 2000 & 2001 YEAR

MODELS, DO NOT CONNECT

DATABUS CONNECTION UNLESS

SPECIFICALLY REQUESTED BY

THE CUSTOMER (SEE NOTE AT

BOTTOM).

6-pin diag plug, J1708+ = pin A

(MB05E), J1708- = pin B

(MB06E).

9-pin diag plug, J1708+ = pin F,

J1708- = pin G.

Always check your work when

connecting to Western Stars to

verify the gauges do not peg full

right or left after connecting to

truck J1708 bus. Start truck to

verify.

On CAT engines, J1939 link

connector is located in

engine compartment

approximately 10 inches

off the engine ECU. It is

labeled “JCAN2”.

On MBE and Detroit

engines - connector is

located at engine side

approximately 20 inches

off the PE 40 pin firewall

connector. It is labeled

“JCAN2”.

Another possible J1939

connection point is located

in behind the dash cluster

and is marked with the

label JCAN1. The

connector part number of

JCAN1 is Deutsch DTM06

2S or FTL Part number 23-

13148-203. Wires are

twisted pair white in color.

Trucks with build dates

from 2001 to 04/03/05

have PLC filter. Connect

TTRACS to wire number

AB17A.

Trucks with build dates

after 04/04/05 and

filter connect TTRACS to

AB02C.

Trucks without PLC

filter connect TTRACS to

wire number AB57B

1 2 ... 7 8 9 10 11 12

April 6, 2010 10

Comments to this Manuals

No comments