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obdprog -- Update to On-Board Diagnostics II (OBD II) Rate-Based Data Report Templates

Posted: 19 May 2014 09:17:28
The OBD II gasoline and diesel rate-based data report templates
have been updated. The rate-based data report templates are
described in ARB Mail-Out #MSC 06-23 “Guidelines for On-Board
Diagnostic (OBD II) Certification Data.”  This mail-out explains
the information manufacturers are required to submit to the Air
Resources Board (ARB) when certifying their OBD II systems,
including the required formats for such information.  

The OBD II regulation, specifically section 1968.2(j)(3),
requires manufacturers to submit rate-based data to ARB
indicating the in-use monitoring performance of the major OBD II
monitors on their in-use vehicles.  

Manufacturers are required to use these updated templates for all
rate-based data submissions to the ARB no later than July 21,
2014.  The updated templates can be found at the following


If you have any questions or comments pertaining to the
templates, please contact Wendy Gallardo by phone at (626)
450-6229 or by e-mail at wendy.gallardo@arb.ca.gov .

OBD systems are self-diagnostic systems incorporated into the
computers of new vehicles.  The OBD II system monitors virtually
every component that can affect the emission performance of the
vehicle to ensure that the vehicle remains as clean as possible
over its entire life, and assists repair technicians in
diagnosing and fixing problems with the computerized engine
controls.  All 1996 and newer model year light-duty and
medium-duty vehicles less than 14,000 lbs. are equipped with OBD
II systems, while heavy-duty vehicles over 14,000 lbs. have
phased in OBD systems starting with the 2010 model year.  For
further information about the OBD program, please visit the OBD
website at http://www.arb.ca.gov/msprog/obdprog/obdprog.htm.

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