Browse Topic: Diagnostics

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J1939 Digital AnnexJ1939DA_201402 (Current)12/8/2025
The J1939 Digital Annex The J1939 Digital Annex, introduced in August 2013, offers key J1939 technical data in an Electronic Spreadsheet that can be easily searched, sorted, and adapted to other formats. J1939DA contains all of the SPNs (parameters), PGNs (messages), and other J1939 data previously published in the SAE J1939 top level document. J1939DA also contains all of the SLOTs, Manufacturer ID Codes, NAME Functions, and Preferred Addresses previously published in the SAE J1939 top level and the J1939-71 document. J1939DA contains the complete technical details for all of the SPNs and PGNs previously published in the SAE J1939-71 document. For all other SPNs and PGNs which are published in a document other than SAE J1939-71, J1939DA lists only basic details along with a reference to the document that contains the complete technical details. J1939DA replaces, and expands upon, the 1939 Companion Spreadsheet (CS1939), which was last published through November 2012. The data fields included in J1939DA for PGNs are: PGN Parameter Group Label Acronyn EDP DP PF PGN Length PS PGN Description Multipacket Transmission Rate PGN Data Length Default Priority PGN Reference PGN Document The data fields included in J1939DA for SPNs are: SPN SPN Name SPN Description SPN Length Resolution Offset Data Range Operational Range Units SLOT Identifier SPN Type SPN Reference SPN Document The J1939 Digital Annex is current through Fourth Quarter 2013 and can be purchased separately or as part of the SAE J1939 Standards Collection on the Web.
Truck Bus Control and Communications Network Committee
Diagnostic Trouble Code DefinitionsJ2012_202511 (Current)11/21/2025
This document supersedes SAE J2012 DEC2007, and is technically equivalent to ISO 15031-6:2010 with the exceptions described in 1.2. This document is intended to define the standardized Diagnostic Trouble Codes (DTC) that On-Board Diagnostic (OBD) systems in vehicles are required to report when malfunctions are detected. SAE J2012 may also be used for decoding of enhanced diagnostic DTCs and specifies the ranges reserved for vehicle manufacturer specific usage.
Vehicle E E System Diagnostic Standards Committee
Comparison of Electronic Chip Detectors and Online Debris Monitoring for Rolling Element Bearing Spall DiagnosticsF-0080-2024-12145/7/2024
Wear debris monitoring and analysis is a common practice for the condition assessment of engine and transmission health. Oil debris monitoring (ODM) and electronic chip detectors (ECD) are two common methods deployed for continuous monitoring of oil wetted component health in-flight. This study evaluates the diagnostic performance of the two sensing technologies within controlled rolling element bearing (REB) fault experiments. Progressive visual inspection of the REB spall progression through failure provided a ground truth against which both systems could be compared. Quantifiable metrics of reliability, diagnostic accuracy, provided maintenance interval were defined to create a framework for condition-based maintenance (CBM) program decision making. In summary, it was found that the ODM sensor system provided earlier fault notice, but more so, vastly outperformed the ECD in reliability and avoidance of false positives.
Mahmoud, Hassan, Rodger, Steve, Oszmian, Adam
test 09/29/2022 2:00 pmSAE-PP-077339/29/2022
test 09/29/2022 2:00 pm
Dongari, Madhukar
J1939 Digital AnnexJ1939DA_202110 (Historical)10/21/2021
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
J1939 Digital AnnexJ1939DA_202108 (Historical)8/5/2021
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
Emissions-Related OBD Systems: A Design OverviewC0708.Multi7/8/2021
On-board diagnostics, required by governmental regulations, provide a means for reducing harmful pollutants into the environment. Since being mandated in 1996, the regulations have continued to evolve and require engineers to design systems that meet strict guidelines. This one day seminar is designed to provide an overview of the fundamental design objectives and the features needed to achieve those objectives for generic on-board diagnostics. The basic structure of an on-board diagnostic will be described along with the system definitions needed for successful implementation. Please note that because of proprietary considerations, this class does not provide details of algorithm design, algorithm performance, or algorithm application. The class will cover general OBD algorithm designs and the features required to promote sound OBD system design. Individuals desiring a more in-depth look at On-Board Diagnostics should consider attending SAE seminar ID# C0707 Designing On-Board Diagnostics for Light and Medium Duty Emissions Control Systems. By attending this seminar, you will be able to: Articulate the underlying design objectives of on-board diagnostic systems Apply the design features that all diagnostics need for successful implementation Apply basic design techniques to deal with variation Use a diagnostic design template in the development of an on-board diagnostic 1 Day .7 CEUs
J1939 Digital AnnexJ1939DA_202103 (Historical)3/29/2021
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
J1939 Digital AnnexJ1939DA_202012 (Historical)12/30/2020
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
J1939 Digital AnnexJ1939DA_202010 (Historical)10/30/2020
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
Modeling a Maintenance Free Operating Period Strategy for Future Vertical LiftF-0076-2020-1627010/5/2020
The U.S. Department of Defense has begun the acquisition of the next generation of military rotorcraft, named Future Vertical Lift (FVL), to replace its aging fleet. U.S. Army Futures Command intends to sustain FVL under a new strategy of maintenance free operating periods (MFOP). This study developed a discrete event simulation to evaluate MFOP success given component reliabilities, desired MFOP duration, and operational tempo of a battalion with thirty aircraft. The simulation compared notional FVL aircraft with improved reliability to today's fleet. Results indicated that inherent reliability alone was insufficient to achieve MFOP goals and that prognostics and diagnostics with robust information management are necessary. Sensitivity studies found the recovery effort after an MFOP was linked to the MFOP duration. Recovery downtime was tied to both the duration and operational tempo. Availability and cost improved with moderate gains in MFOP duration by eliminating unnecessary preventive maintenance but overextending the MFOP sacrificed aircraft dependability for marginally greater availability and savings.
Beigh, Matthew, Burgess, James, Schrage, Daniel, Bellocchio, Andrew
Medium/Heavy-Duty E/E Systems Diagnosis NomenclatureJ2403_202008 (Historical)8/3/2020
This SAE Recommended Practice is applicable to all E/E systems on MD and HD vehicles. The terms defined are largely focused on compression-ignited and spark-ignited engines. Specific applications of this document include diagnostic, service and repair manuals, bulletins and updates, training manuals, repair data bases, under-hood emission labels, and emission certification applications. This document focuses on diagnostic terms, definitions, abbreviations, and acronyms applicable to E/E systems. It also covers mechanical systems which require definition. Nothing in this document should be construed as prohibiting the introduction of a term, abbreviation, or acronym not covered by this document. The use and appropriate updating of this document is strongly encouraged. Certain terms have already been in common use and are readily understood by manufacturers and technicians, but do not follow the methodology of this document. These terms fall into three categories: a Acronyms that do not logically fit the term. b Acronyms existing at the component level (i.e., their terms contain the base word or noun that describes the generic item that is being further defined). c Acronyms for terms that appear to contain the base word, but are frequently used as a modifier to another base word. (This use may possibly be thought of as following the methodology, since the acronym is normally used as a modifier.)
Truck Bus Control and Communications Network Committee
J1939 Digital AnnexJ1939DA_202007 (Historical)7/15/2020
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
Application Layer - DiagnosticsJ1939/73_202006 (Historical)6/9/2020
SAE J1939-73 defines the SAE J1939 messages to accomplish diagnostic services and identifies the diagnostic connector to be used for the vehicle service tool interface. Diagnostic messages (DMs) provide the utility needed when the vehicle is being repaired. Diagnostic messages are also used during vehicle operation by the networked electronic control modules to allow them to report diagnostic information and self-compensate as appropriate, based on information received. Diagnostic messages include services such as periodically broadcasting active diagnostic trouble codes, identifying operator diagnostic lamp status, reading or clearing diagnostic trouble codes, reading or writing control module memory, providing a security function, stopping/starting message broadcasts, reporting diagnostic readiness, monitoring engine parametric data, etc. California-, EPA-, or EU-regulated OBD requirements are satisfied with a subset of the specified connector and the defined messages.
Truck Bus Control and Communications Network Committee
SAE J1939 Functional Safety Communications ProtocolJ1939-76_202004 (Current)4/29/2020
This document provides the technical requirements for implementing the SAE J1939 Functional Safety Communication Protocol in a manner determined suitable for meeting industry applicable functional safety standards.
Truck Bus Control and Communications Network Committee
J1939 Digital AnnexJ1939DA_202003 (Historical)3/31/2020
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
Digital Annex of Medium/Heavy-Duty E/E Systems Diagnosis NomenclatureJ2403DA_202003 (Historical)3/17/2020
This document is intended to supplement SAE J2403 by providing the content of Table 1, Table 2, and Table 3 from SAE J2403 in a form that can be sorted and searched for easier use. It is NOT intended as a substitute for the actual document, and any discrepancies between this Digital Annex and the published SAE J2403 document must be resolved in favor of the published document. This document provides the content of Table 1 and Table 2 published in SAE J2403 into the single table in the 'Term' tab, while the 'Recommended Term Definitions' tab provides the content of Table 3 in SAE J2403 and the 'Glossary' tab provides the content of Table 4 in SAE J2403.
Truck Bus Control and Communications Network Committee
Permanently or Semi-Permanently Installed Diagnostic Communication Devices, Security GuidelinesJ3005-2_202003 (Current)3/4/2020
The scope of the document is to define the cyber-security best practices to reduce interference with normal vehicle operation, or to minimize risk as to unauthorized access of the vehicle's control, diagnostic, or data storage system; access by equipment (i.e., permanently or semi-permanently installed diagnostic communication device, also known as dongle, etc.) which is either permanently or semi-permanently connected to the vehicle's OBD diagnostic connector, either SAE J1939-13, SAE J1962, or other future protocol; or hardwired directly to the in-vehicle network. This document only specifies requirements and guidance for those diagnostic communication devices and not for the vehicle. Refer to SAE J3138 for requirements for the vehicle side.
Vehicle E E System Diagnostic Standards Committee
Diagnosing Prostate Cancer with Artificial IntelligenceTBMG-360212/1/2020
Researchers at Radboud UMC have developed a “deep learning” system that is better than most pathologists at determining the aggressiveness of prostate cancer. The AI system, which uses tissue samples to arrive at its diagnosis, taught itself to identify prostate cancer based on data from over 1200 patients. The Radboud team is now working with researchers from the Karolinska Institute in Sweden and Kaggle, a Google subsidiary, with the intention to continue developing these methods as part of a major international competition.
J1939 Digital AnnexJ1939DA_202001 (Historical)1/31/2020
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
J1939 Digital AnnexJ1939DA_201910 (Historical)10/29/2019
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
Recommended Practice for Optimizing Automobile Damageability and RepairabilityJ1555_201910 (Current)10/24/2019
This SAE Recommended Practice applies to all portions of the vehicle, but design efforts should focus on components and systems with the highest contribution to the overall average repair cost (see 3.7). The costs to be minimized include not only insurance premiums, but also out-of-pocket costs incurred by the owner. Damageability, repairability, serviceability and diagnostics are inter-related. Some repairability, serviceability and diagnostics operations may be required for collision or comprehensive loss-related causes only. Some operations may be for non-collision-related causes only (warranty, scheduled maintenance, non-scheduled maintenance, etc.). Some may be required for both causes. The scope of this document deals with only those operations that involve collision and comprehensive insurance loss repairs.
Motor Vehicle Council
J1939 Digital AnnexJ1939DA_201907 (Historical)7/22/2019
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
E/E Data Link SecurityJ2186_201907 (Current)7/12/2019
This SAE Recommended Practice establishes a uniform practice for protecting vehicle components from "unauthorized" access through a vehicle data link connector (DLC). The document defines a security system for motor vehicle and tool manufacturers. It will provide flexibility to tailor systems to the security needs of the vehicle manufacturer. The vehicle modules addressed are those that are capable of having solid state memory contents accessed or altered through the data link connector. Improper memory content alteration could potentially damage the electronics or other vehicle modules; risk the vehicle compliance to government legislated requirements; or risk the vehicle manufacturer's security interests. This document does not imply that other security measures are not required nor possible.
Vehicle E E System Diagnostic Standards Committee
Diagnose Lithium BatteriesTBMG-345876/1/2019
Batteries with metallic lithium anodes offer enhanced efficiency compared to conventional lithium-ion batteries because of their higher capacity. However, safety concerns and a short lifespan stand in the way. To better analyze the causes of malfunctions and premature failure of such batteries, researchers have developed a technique that visualizes the distribution of active lithium on the anode and differentiates between dendrites and “dead” lithium. The technique makes use of a fluorescent dye.
TP2.0 Vehicle Diagnostic ProtocolJ2819_201905 (Current)5/20/2019
This Technical Information Report defines the diagnostic communication protocol TP2.0. This document should be used in conjunction with SAE J2534-2 in order to fully implement the communication protocol in an SAE J2534 interface. Some Volkswagen of America and Audi of America vehicles are equipped with ECU(s), in which a TP2.0 proprietary diagnostic communication protocol is implemented. The purpose of this document is to specify the requirements necessary to implement the communication protocol in an SAE J2534 interface.
Vehicle E E System Diagnostic Standards Committee
Keyword Protocol 1281J2818_201905 (Current)5/20/2019
This Technical Information Report defines the diagnostic communication protocol Keyword Protocol 1281 (KWP1281). This document should be used in conjunction with SAE J2534-2 in order to fully implement the communication protocol in an SAE J2534 interface. Some Volkswagen of America and Audi of America vehicles are equipped with ECUs, in which a KWP1281 proprietary diagnostic communication protocol is implemented. The purpose of this document is to specify the KWP1281 protocol in enough detail to support the requirements necessary to implement the communication protocol in an SAE J2534 interface device.
Vehicle E E System Diagnostic Standards Committee
J1939 Digital AnnexJ1939DA_201904 (Historical)4/22/2019
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
J1939 Digital AnnexJ1939DA_201902 (Historical)2/28/2019
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
Application Layer - DiagnosticsJ1939/73_201901 (Historical)1/31/2019
SAE J1939-73 Diagnostics Application Layer defines the SAE J1939 messages to accomplish diagnostic services and identifies the diagnostic connector to be used for the vehicle service tool interface. Diagnostic messages (DMs) provide the utility needed when the vehicle is being repaired. Diagnostic messages are also used during vehicle operation by the networked electronic control modules to allow them to report diagnostic information and self-compensate as appropriate, based on information received. Diagnostic messages include services such as periodically broadcasting active diagnostic trouble codes, identifying operator diagnostic lamp status, reading or clearing diagnostic trouble codes, reading or writing control module memory, providing a security function, stopping/starting message broadcasts, reporting diagnostic readiness, monitoring engine parametric data, etc. California-, EPA-, or EU-regulated OBD requirements are satisfied with a subset of the specified connector and the defined messages.
Truck Bus Control and Communications Network Committee
Management of RAM Fault for Safety Applications2019-26-03651/9/2019
As safety compliance (ISO 26262) has become a norm for automotive embedded software development, the OEMs and Tier1 are pushed to follow the safety guidelines during hardware, software development process. This demands the microcontroller to not only detect internal faults but also find the exact root cause of the failure and have a self-healing mechanism. This paper presents proposed fault detection, injection, testing and shows comparison of microcontroller fault handling with respect to ISO26262 safety standard between proposed method and traditional method by giving the example of RAM test. Also gives an overview of software implementation of this concept as per AUTOSAR standard.
Ganapathi, Anavaratha Selvan
Digital Annex of Diagnostic Trouble Code Definitions and Failure Type Byte DefinitionsJ2012DA_201812 (Historical)12/19/2018
The J2012 Digital Annex of Diagnostic Trouble Code Definitions Spreadsheet provides DTC information in an excel format for use in your organization's work processes. The column headings include the same information as contained in the J2012 standard. Information in the excel spreadsheet will be updated several times annually, and the spreadsheet includes a column heading denoting which DTC have been updated in the current version.
Vehicle E E System Diagnostic Standards Committee
Simple Stickers May Save Lives of Heart PatientsTBMG-3344212/1/2018
Heart surgery can be traumatic for patients. Having to continuously monitor your status without a doctor when you are back home can be even scarier. Imagine being able to do that with a simple sticker applied to your body.
J1939 Digital AnnexJ1939DA_201810 (Historical)10/31/2018
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
Optical Diagnostics of Inversed-Delta Rate Shaping Diesel Spray Flame towards Reduction of Late Combustion2018-01-17939/10/2018
In our previous work, diesel late combustion heat release is suspected to originate from rich fuel mixture cloud stagnating at the spray tip. Injection rate shaping is gaining attention as an attractive strategy to control diesel spray combustion characteristics where it could be an effective approach in reducing the late combustion. Progressive ramp-down injection rate as in “inversed-delta” shape is achieved by using a novel rate shaping injector called TAIZAC (TAndem Injectors Zapping Activation); rate shaping can be realized by controlling the actuation timing of two directly-connected commercially available injectors. To investigate the potential of inversed-delta rate shaping for reduction of diesel late combustion, simultaneous high-speed UV laser diffuse back illumination (DBI), UV emissions and soot luminosity imaging of inversed-delta and conventional rectangle-injected spray flames conducted in a constant volume combustion chamber are compared. In inversed-delta injection, faster combustion duration and higher initial heat release comparable to high pressure rectangle injection is observed from pressure-derived heat release rate analysis. Faster disappearance timing of spray tip rich mixture and UV emissions are noted in inversed-delta diesel spray indicating that late combustion heat release due to the rich mixture is reduced. Spray tip of the inversed-delta spray initially penetrates faster but it seems to be slowed down to which the rectangle spray tip penetration eventually surpasses it. It can be suggested that the inversed-delta rate shaping by using TAIZAC injector has a mixing and combustion characteristics as in high pressure injection, with the merits of low penetration as in low pressure injection.
Bin Abdullah, Mohd Fareez Edzuan, Toyama, Yoshiaki, Takahara, Kazuhiro, Saruwatari, Soshu, Akiyama, Shinobu, Shimada, Taizo, Aizawa, Tetsuya
An Experimental Investigation on Spray Mixing and Combustion Characteristics for Spray C/D Nozzles in a Constant Pressure Vessel2018-01-17839/10/2018
The Engine Combustion Network (ECN) is a coordinate effort from research partners from all over the world which aims at creating a large experimental database to validate CFD calculations. Two injectors from ECN, namely Spray C and D, have been compared in a constant pressure flow vessel, which enables a field of view of more than 100 mm. Both nozzles have been designed with similar flow metrics, with Spray D having a convergent hole shape and Spray C a cylindrical one, the latter being therefore more prone to cavitation. Although the focus of the study is on reacting conditions, some inert cases have also been measured. High speed schlieren imaging, OH* chemiluminescence visualization and head-on broadband luminosity have been used as combustion diagnostics to evaluate ignition delay, lift off length and reacting tip penetration. Parametric variations include ambient temperature, oxygen content and injection pressure variations. Results extend the range of variation of previously reported experiments in the literature for such nozzles, showing good agreement with such previous results and enlarging the available database for CFD validation. A systematic shorter lift-off length is observed for Spray C, while ignition delay from broadband luminosity and schlieren visualization show no clear difference between both nozzles. Comparison against literature results from Spray A has also been performed, from which behavior of the larger nozzles is seen to be highly affected by the slower mixing process.
Pastor, Jose V., Garcia-Oliver, Jose M, Garcia, Antonio, Morales López, Andrés
J1939 Digital AnnexJ1939DA_201808 (Historical)8/2/2018
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
Digital Annex of Medium/Heavy-Duty E/E Systems Diagnosis NomenclatureJ2403DA_201807 (Historical)7/16/2018
This document is intended to supplement SAE J2403 by providing the content of Table 1, Table 2, and Table 3 from SAE J2403 in a form that can be sorted and searched for easier use. It is NOT intended as a substitute for the actual document, and any discrepancies between this Digital Annex and the published SAE J2403 document must be resolved in favor of the published document. This document provides the content of Table 1 and Table 2 published in SAE J2403 into the single table in the 'Term' tab, while the 'Recommended Term Definitions' tab provides the content of Table 3 in SAE J2403 and the 'Glossary' tab provides the content of Table 4 in SAE J2403.
Truck Bus Control and Communications Network Committee
Selecting Gearhead Technology for Medical Imaging EquipmentTBMG-297467/1/2018
CT scanners have far greater accuracy than x-ray technology but place more demands on patients. Getting the high precision, three-dimensional images necessary for accurate diagnosis requires patients to lie still on a table moving through a magnetic field created by a large ring of magnets that rotates around them. Although the fundamentals of these designs are limited by the laws of physics and economics, over the years, medical equipment manufacturers have made great strides in refining system mechanics to maximize patient comfort. They have, for example, reduced the duration of a single rotation from hours to below 500 milliseconds, which has shortened sessions dramatically.
J1939 Digital AnnexJ1939DA_201805 (Historical)5/10/2018
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
Experimental and Computational Investigation of Subcritical Near-Nozzle Spray Structure and Primary Atomization in the Engine Combustion Network Spray D2018-01-02774/3/2018
In order to improve understanding of the primary atomization process for diesel-like sprays, a collaborative experimental and computational study was focused on the near-nozzle spray structure for the Engine Combustion Network (ECN) Spray D single-hole injector. These results were presented at the 5th Workshop of the ECN in Detroit, Michigan. Application of x-ray diagnostics to the Spray D standard cold condition enabled quantification of distributions of mass, phase interfacial area, and droplet size in the near-nozzle region from 0.1 to 14 mm from the nozzle exit. Using these data, several modeling frameworks, from Lagrangian-Eulerian to Eulerian-Eulerian and from Reynolds-Averaged Navier-Stokes (RANS) to Direct Numerical Simulation (DNS), were assessed in their ability to capture and explain experimentally observed spray details. Due to its computational efficiency, the Lagrangian-Eulerian approach was able to provide spray predictions across a broad range of conditions. In general, this “engineering-level” simulation was able to reproduce the details of the droplet size distribution throughout the spray after calibration of the spray breakup model constants against the experimental data. Complementary to this approach, higher-fidelity modeling techniques were able to provide detailed insight into the experimental trends. For example, interface-capturing multiphase simulations were able to capture the experimentally observed bimodal behavior in the transverse interfacial area distributions in the near-nozzle region. Further analysis of the spray predictions suggests that peaks in the interfacial area distribution may coincide with regions of finely atomized droplets, whereas local minima may coincide with regions of continuous liquid structures. The results from this study highlight the potential of x-ray diagnostics to reveal salient details of the near-nozzle spray structure and to guide improvements to existing primary atomization modeling approaches.
Battistoni, Michele, Magnotti, Gina M., Genzale, Caroline L., Arienti, Marco, Matusik, Katarzyna E., Duke, Daniel J., Giraldo, Jhoan, Ilavsky, Jan, Kastengren, Alan L., Powell, Christopher F., Marti-Aldaravi, Pedro
Diagnostics Manufacturing: Strategies for OutsourcingTBMG-286794/1/2018
When new assays or diagnostic tests are ready for commercialization, there can be tremendous hurdles to overcome, including significant investment in the infrastructure for automated manufacturing and test equipment and hiring and retaining highly trained personnel, as well as implementing high-end quality management systems. In addition, FDA, ISO, GMP, and other approvals or certifications may be required. This article examines the requirements for manufacturing these complex diagnostics as well as the critical factors to consider when selecting a manufacturer.
J1939 Digital AnnexJ1939DA_201802 (Historical)2/28/2018
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
J1939 Digital AnnexJ1939DA_201710 (Historical)10/10/2017
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
New Reference Material Ensures Validity of Test ResultsTBMG-276249/28/2017
A new reference material is primarily intended for use in calibrating procedures and devices for the determination of C-reactive protein (CRP) in human serum. It can also be used for value-assignment of in-house calibrator solutions and control materials.
ASTM-D7684-11 Compliant Computer Aided Interactive Wear Debris Particle Analysis for On-Site Condition Monitoring, Diagnostics and Prognostics2017-01-21249/19/2017
Within the aviation industry analysis of wear debris particles recovered from magnetic plugs and lubricating fluids is an essential condition monitoring tool. However, in large organisations, high staff turnover in remote work environments often leaves dangerous gaps in on-site support and background knowledge. The current work develops interactive software for wear debris particle classification, root cause diagnosis and serviceability prognostics. During the research several hundred wear debris particle images were collected, analysed and classified by a number of experts. At each stage of the analysis the experts were questioned about the knowledge and experience used to make their diagnoses and prognoses. The end result is an extensive knowledge base representing the combined expertise of a number of highly trained engineers, each with decades of hands-on experience. Access to this knowledge base is provided at each stage of interaction with the software, as automatically generated expert-guidance notes, which support the end user in their decision making by letting them know exactly what the expert would be thinking at that point in the analysis. This helps to correct systematic misconceptions, resolve ambiguities and offers appropriate alternative diagnostic choices. The use of brief, contextual pieces of information means that facts and concepts are more easily understood and remembered. The software uses the nomenclature of, and is compliant with, the ‘ASTM D7684-11 standard guide for microscopic characterisation of particles from in-service lubricants’. It allows the end user to integrate standardised particle analysis into the daily work flow, whilst acquiring knowledge and skills in a practical setting.
Leavers, Violet
J1939 Digital AnnexJ1939DA_201707 (Historical)7/19/2017
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.
Truck Bus Control and Communications Network Committee
Application Layer - DiagnosticsJ1939/73_201705 (Historical)5/12/2017
SAE J1939-73 Diagnostics Application Layer defines the SAE J1939 messages to accomplish diagnostic services and identifies the diagnostic connector to be used for the vehicle service tool interface. Diagnostic messages (DMs) provide the utility needed when the vehicle is being repaired. Diagnostic messages are also used during vehicle operation by the networked electronic control modules to allow them to report diagnostic information and self-compensate as appropriate, based on information received. Diagnostic messages include services such as periodically broadcasting active diagnostic trouble codes, identifying operator diagnostic lamp status, reading or clearing diagnostic trouble codes, reading or writing control module memory, providing a security function, stopping/starting message broadcasts, reporting diagnostic readiness, monitoring engine parametric data, etc. California, EPA, or EU regulated OBD requirements are satisfied with a subset of the specified connector and the defined messages.
Truck Bus Control and Communications Network Committee
J1939 Digital AnnexJ1939DA_201704 (Historical)4/27/2017
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use. The J1939 Digital Annex, introduced in August 2013, offers key J1939 technical data in an Electronic Spreadsheet that can be easily searched, sorted, and adapted to other formats. J1939DA contains all of the SPNs (parameters), PGNs (messages), and other J1939 data previously published in the SAE J1939 top level document. J1939DA also contains all of the SLOTs, Manufacturer ID Codes, NAME Functions, and Preferred Addresses previously published in the SAE J1939 top level and the J1939-71 document. J1939DA contains the complete technical details for all of the SPNs and PGNs previously published in the SAE J1939-71 document. It also includes the supporting descriptions and figures previously published in the SAE J1939-71 document. For other SPNs and PGNs which are published in a document other than SAE J1939-71, J1939DA lists only basic details along with a reference to the document that contains the complete technical details. J1939DA replaces, and expands upon, the J1939 Companion Spreadsheet (CS1939), which was last published through November 2012. The data fields included in J1939DA for PGNs are: PGN, Parameter Group Label, Acronym, EDP, DP, PF, PGN Length, PS, PGN Description, Multipacket, Transmission Rate, PGN Data Length, Default Priority, PGN Reference, PGN Document The data fields included in J1939DA for SPNs are: SPN, SPN Name, SPN Description, SPN Length, Resolution, Offset, Data Range, Operational Range, Units, SLOT Identifier, SPN Type, SPN Reference, SPN Document. The J1939 Digital Annex can be purchased separately or as part of the SAE J1939 Standards Collection on the Web.
Truck Bus Control and Communications Network Committee
Digital Annex of Medium/Heavy-Duty E/E Systems Diagnosis NomenclatureJ2403DA_201703 (Historical)3/30/2017
This document is intended to supplement SAE J2403 by providing the content of Table 1, Table 2, and Table 3 from SAE J2403 in a form that can be sorted and searched for easier use. It is NOT intended as a substitute for the actual document, and any discrepancies between this Digital Annex and the published SAE J2403 document must be resolved in favor of the published document. This document provides the content of Table 1 and Table 2 published in SAE J2403 into the single table in the 'Term' tab, while the 'Recommended Term Definitions' tab provides the content of Table 3 in SAE J2403 and the 'Glossary' tab provides the content of Table 4 in SAE J2403.
Truck Bus Control and Communications Network Committee
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