J1939 Truck & Bus Request Form

Revision 1.30 - April 24th, 2003

General instructions are listed at the end of this form. For further instructions on the request submission process, refer to the J1939 Truck & Bus Request Processing Guidelines found on the SAE website.

General Requestor Information

Enter your e-mail address! This is the primary means by which the committee will communicate with you. Even if your information is in the committee roster, enter it again here so we may automate our mailings.

First Name / Last Name...... /

Company......

Address......

City......

State/Province......

Country......

Postal Code......

Phone......

Fax......

E-mail......

Request Date (M/D/YY)......

Proposed Discussion Group......

Request Subject (if applicable, also list filename(s) containing supporting information):

PGN

This section is for requesting a new PGN or modifying an existing PGN, such as adding or modifying one of its parameters. Note that PGN broadcast rate and message priority cannot be revised. To add more than one PGN to this request form, click on the check box above, and then ‘Create New PGN’.

  1. What is the request?......
  2. PGN Number to be revised?......
  3. PGN Name......
  4. Proposed acronym......
  5. PGN type......
  6. Data length...... bytes
  7. Is this a multi-packet message?......
  8. Desired broadcast rate of the message......
  9. Desired message priority......

  1. PGN description:

Parameter / SLOT / SPN

This section can be used for requesting a new parameter, modifying a current parameter, adding a SLOT, or adding / revising a diagnostic-only SPN. If this section addresses a parameter, it is associated with the PGN listed above. To add more than one Parameter / SLOT / SPN to this request form, click on the check box above, and then ‘Add SPN After Selection’ or ‘Create Diagnostic SPN’.

1.What is the request?......

2.SPN to revise......

3.Proposed name for new parameter or SPN......

4.If adding a new SPN to duplicate a J1587 SID, enter the J1587 MID/PID/SID...... / /

5.Parameter starting byte and bit......

6.Parameter Type......

7.If the parameter will use an existing SLOT, pick from the list at the right......

If the parameter requires a new SLOT, fill in the following:

a.SLOT type......

b.Engineering units......

c.Scaling (SLOT resolution, in terms of Engineering Units per bit)......

d.Limits (SLOT range, in terms of Engineering Units)......

e.Offset (Engineering Units)......

f.Parameter Length (expressed in number of bits)......

g. Operational range, if different than SLOT range above......

9.Parameter and / or SPN description:
10.If this request is for a ‘State and Status’ Parameter, list the Bit States and their definitions:
  1. Requestor notes to the SAE committee:

Preferred Source Address

To request a new Source Address, fill in all fields except ‘Address to revise’; new addresses are assigned by the committee. For revisions, enter the ‘Source Address to revise’, and only fill in fields for which a change is requested.

  1. What is the request?......
  2. Source Address to revise......
  3. Industry Group Number......
  4. ECU-Module Name......

  1. ECU-Module Definition:

  1. Requestor notes to the SAE committee

‘All Industry Inclusive’ or ‘Industry Group Specific’ Names

  1. Industry Group......
  2. Are you requesting a new name, or revising one?......
  3. Vehicle System Value to revise......
  4. Function Value to revise......

  1. Vehicle System description:

  1. Function description:

  1. Requestor Notes to the Committee:

Manufacturer Code

  1. What is the request?......
  2. Manufacturer code number to revise......
  3. New or revised manufacturer name, including division or department if appropriate......
  4. New or revised location (City, State, Country)......

  1. Requestor notes to the SAE committee

Instructions:

  1. The following are only a brief set of instructions. For further details on the J1939 request submission process, please refer to the ‘J1939 Truck & Bus Request Processing Guidelines’ document on the SAE website.
  2. Many fields on this form have context-sensitive help that can be accessed by clicking on the form field and hitting the F1 key.
  3. The required filename format for requests is YYYYMMDDii_x.doc, where:

‘YYYY’ = Year

‘MM’ = Month

‘DD’ = Day

‘ii’ = Requestor’s initials

‘x’ = Number of the request sent that day

For example, if Tom Hoover submitted a single request on November 3rd, 2000, the filename of the request would be 20001103KK_1.doc. If he submitted TWO requests on this same day, the second request filename would be 20001103KK_2.doc.

  1. If you feel that more detailed text, supporting graphs, diagrams or data would be helpful, please submit them along with your request. The filename should be the SAME as the request form except for an additional ‘_SUP’ extension.

For the previous example, a Word document named 20001103KK_1_SUP.doc or an Adobe Acrobat file 20001103KK_1_SUP.pdf could be added.

  1. Before submitting your request, please consider the following:

Are ALL of the necessary fields of the request form filled out?

Is the filename format of your request correct?

All company-specific terminology removed?

Are your PGN and SPN explanations clear – Can another person pick up your request and understand it? Will someone in a company outside of yours understand it?

Have you used universal wording such you’re your request is usable by other companies?

If you have a co-worker or person in your company who participates in the SAE J1939 committee meetings, have them personally review your request before you submit it.

  1. Copies of your request must be e-mailed to:

J1939-71 Task Force ChairmanGreg Gillham:

J1939 Database Coordinator Mark Stepper:

SAE AdministratorAleita Wilson:

  1. The requestor is responsible for creating a folder for his / her request on the SAE website.
  2. The requestor is responsible for championing his or her request through the approval process. Please refer to the request processing guidelines for suggestions on how to do this.