Data Link Parameters

TM 9-2320-312-24-2

Troubleshooting Section

Cab set switch (J1/P1:35)

i01728860

Data Link Parameters

Resume switch (J1/P1:44)

SMCS Code: 1901

Note: When an exhaust particulate filter is installed,

the parameter "PTO Configuration" is automatically

"Powertrain Data Link"

programmed to "Cab Switches". This parameter

cannot be reprogrammed.

This parameter must be programmed to "J1939" in

order to receive any switch inputs from the "J1939"

If the parameter "PTO Configuration" is programmed

data link. This parameter determines if the ECM

to "Remote Switches", the ECM will monitor

will communicate to a power train component by

programmed signals such as the remote set switch

using the J1939 data link. If the vehicle is not using

and remote resume switch. Signals from the cab

the data link for communication to the power train

controls will be ignored when the PTO on/off circuit

systems, this parameter should be programmed to

is on. The following components are cab controls:

"NONE". The following systems are examples of

power train systems:

Brake switch

Traction control systems

Clutch switch

Anti-lock brake systems

Accelerator

Electronically controlled transmissions

Cruise control switches

Note: A 231-11 J1939 Data Link Fault(58) will occur

If the parameter "PTO Configuration" is programmed

if the parameter for the power train data link is set

to "Remote Throttle", the ECM will monitor input 8

to J1939 without a J1939 power train ECM on the

(J1/P1:68) for the remote accelerator pedal. The

vehicle. The J1939 power train ECM is used to

ECM will monitor programmed signals and the ECM

communicate with the engine ECM.

will ignore all cab controls when the PTO on/off

circuit is on.

Table 29

Table 30

Manufacturer

Alternative

Default

Alternative

Default

"J1939"

"NONE"

"Cab Switches", "Remote

Other

"J1939"

"NONE"

Switches", and "Remote

"OFF"

Throttle"

i01727043

"PTO Top Engine Limit"

Dedicated PTO Parameters

The "PTO Top Engine Limit" is the top engine limit

SMCS Code: 1901

that is available by using a PTO on/off circuit that is

connected to input 1 of ECM connector (J1/P1:56).

"PTO Configuration"

Note: The "PTO Configuration" must be programmed

The "PTO Configuration" determines the features

to "Cab Switches", "Remote Switches", or "Remote

that are available for dedicated PTO applications

Throttle" before this parameter can be programmed.

and the input signals that are used for dedicated

PTO applications. When the "PTO Configuration"

Table 31

is programmed to "OFF", the application does

Minimum

Maximum

Default

not use the settings for the PTO. The remaining

700

TEL rpm

programmable options for the PTO require a PTO

on/off circuit that is connected to ECM input 1 (ECM

connector J1/P1:56). A PTO switch on lamp can also

"PTO Engine RPM Set Speed"

be connected to output 1 (ECM J1/P1 terminal 30).

The "PTO Engine RPM Set Speed" is the engine

If the parameter "PTO Configuration" is programmed

rpm that is allowed by the ECM when the PTO on/off

to the "Cab Switches", the ECM will use the signals

circuit is on and the set switch is actuated.

from the following two switches for PTO control and

cruise control: