SAE 2014 On-Board Diagnostics Symposium

Technical Session Schedule

Wednesday, September 10

Draft Schedule for On-Board Diagnostics Symposium - Day Two
(Session Code: OBD200)

Room TBD  ALL DAY

Time Paper No. Title
8:00 a.m. ORAL ONLY
OBD Standards Review
Paul A. Baltusis, Ford Motor Co.; Robert Gruszczynski, Volkswagen of America
8:45 a.m. ORAL ONLY
Electrification Update (Safety Systems)
Andrew Zettel, General Motors Co.
9:30 a.m. ORAL ONLY
Working Group 1 & 17 and Worldwide Harmonization
Robert Gruszczynski, Volkswagen of America
10:00 a.m. ORAL ONLY
Diesel Misfire Challenges and Accomplishments
David Mathews, General Motors Co.
10:30 a.m.
BREAK
11:00 a.m. ORAL ONLY
Breakout Sessions
Four dynamic and informative Breakout Sessions will be offered:

Electrification, moderated by Andrew Zettel

Communication Standards, moderated by Paul Baltusis

Diesel Misfire Monitoring, moderated by Dave Mathews

Diesel Aftertreatment, modereated by Hal Zatorski and John Van Gilder
12:45 p.m. ORAL ONLY
Networking Lunch With Exhibits
1:45 p.m. ORAL ONLY
Breakout Session Summaries and Q&A
This 90 minute session will cover a summary of the earlier breakout sessions as well as offer time for Q&A and open discussion amongst the moderators and attendees.
Moderators - Paul A. Baltusis, Ford Motor Co.; David Mathews, John Van Gilder, General Motors Co.; Hal Zatorski, Chrysler Group LLC; Andrew Zettel, General Motors Co.
3:15 p.m.
BREAK
3:45 p.m. ORAL ONLY
OBD and Service Diagnosis for Powertrain Systems – A Comprehensive Diagnostic Approach
To accomplish the goal of an effective repair strategy, service diagnosis should combine guided trouble shooting with available OBD information, specific diagnosis and service routines. For this comprehensive diagnostic approach, a joined OBD and service diagnosis development process is the crucial success factor.

The presentation will show the joined on- and off board diagnostic strategy based on technical examples as a basis for an effective repair procedure. Different aspects of on- and off board solutions will be considered. Beside this an outlook regarding development trends for future on- and off board diagnostic will be given.
Markus Willimowski, Robert Bosch GmbH
4:15 p.m. ORAL ONLY
OBD Anomalies From A Service Perspective
We define anomalies as failures that cannot be solved through conventional measures or teachings. The problem with anomalies in the automotive teaching material and technician realm is that vehicles are not getting fixed in an efficient and timely manner.

However, these anomalies are not being addressed and dealt with, and have cost the industry in the way of consumers spending money on problems that are never fixed properly, and in a timely manner, thus creating a negative perception of the vehicle to the customer.

Anomalies have led, and continue to lead, to the instructors not knowing the proper answers, and the technicians not being able to repair the vehicle right the first time. This lack of information has delivered the industry a serious injustice when attempting to repair these problems that do not make sense. Our presentation will show some of these issues of failures that were never addressed through the conventional teachings.

In our project, we will be looking at anomalies, so that the instructor will have a better understanding of what is not in the conventional teaching material and the technician will understand new operating strategies that are not published, in order to repair the vehicle in a timely and efficient manner. Steve will discuss the lack of codes of the rear oxygen sensor and its effect of final fuel trim, Jason will discuss a Chevy S10's variable cooling fan taking voltage from the electronic throttle body, which results in codes for the throttle body, but not for the fan, which can be very misleading in a fast paste environment.

Also, we will discuss the need to use labscopes to determine failures. Codes and conventional diagnostics do not explain problems. Noise from an outside source that is not big enough to view on a DVOM, yet a labscope will pick it up. For example, noise from an alternator causing air/fuel ratio imbalance codes, voltage spikes from a coil on plug causing a spike in cylinder head temperature sensor, which causes the cluster to see too high of a temperature, resulting in a vehicle shut down due to over temperature protection- not a real problem yet induced by outside factors.

We are presenting this material to bring to light the lack of information, and asking SAE to help us get this information available to Instructor/Developers and Technicians so that we can better service the vehicle which, in turn, will result in customers feeling happy and confident about their vehicles. This will also promote dialogue between engineers and technicians and possibly, through collaboration with one another, lead to better triangulation of onboard diagnostics.
Jason W. Smith, Consultants for Auto Repair Services; Steve Caruso, OBD2Training.com
4:45 p.m. ORAL ONLY
CARB Regulatory Process
Leela Rao, California Air Resources Board