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1、 Reference number ISO 15031-6:2005(E) ISO 2005 INTERNATIONAL STANDARD ISO 15031-6 First edition 2005-12-01 Road vehicles Communication between vehicle and external equipment for emissions-related diagnostics Part 6: Diagnostic trouble code definitions Vhicules routiers Communications entre un vhicul
2、e et un quipement externe pour le diagnostic relatif aux missions Partie 6: Dfinition des codes danomalie de diagnostic ISO 15031-6:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edi
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5、dies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechani
6、cal, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.o
7、rg Published in Switzerland ii ISO 2005 All rights reserved ISO 15031-6:2005(E) ISO 2005 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4 General specifications 6 5 Format structure. 7 5.1 Description 7 5.2 ISO/SAE co
8、ntrolled codes (core DTCs) 8 5.3 Manufacturer controlled codes (non-uniform DTCs) 8 5.4 Body system groupings (DTC numbers and descriptions are given in Annex C). 8 5.5 Chassis system groupings (DTC numbers and descriptions are given in Annex C) 8 5.6 Powertrain system groupings (DTC numbers and des
9、criptions are given in Annex B) . 9 5.7 Network groupings (DTC numbers and descriptions are given in Annex C). 9 6 Diagnostic trouble code descriptions 9 6.1 Diagnostic trouble code application. 9 6.2 Powertrain systems 9 6.3 Body systems 10 6.4 Chassis systems. 10 6.5 Network and vehicle integratio
10、n systems 10 7 Change requests. 11 Annex A (normative) Diagnostic trouble code naming guidelines. 12 Annex B (normative) Powertrain system diagnostic trouble codes. 15 Annex C (normative) Network communication system, body system, and chassis system groupings 90 Annex D (normative) DTC Failure Categ
11、ory and Subtype definition 118 ISO 15031-6:2005(E) iv ISO 2005 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out throu
12、gh ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collabora
13、tes closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standar
14、ds. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of th
15、is document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15031-6 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical and electronic equipment. ISO 15031 consists of the following part
16、s, under the general title Road vehicles Communication between vehicle and external equipment for emissions-related diagnostics: Part 1: General information Part 2: Terms, definitions, abbreviations and acronyms Part 3: Diagnostic connector and related electrical circuits, specification and use Part
17、 4: External test equipment Part 5: Emissions-related diagnostic services Part 6: Diagnostic trouble code definitions Part 7: Data link security ISO 15031-6:2005(E) ISO 2005 All rights reserved v Introduction ISO 15031 consists of a number of parts which taken together provide a coherent self-consis
18、tent set of specifications to facilitate emissions-related diagnostics. Parts 2 through 7 are based on SAE-recommended practices. This part of ISO 15031 is based on SAE J2012: MAR99 (Recommended Practice for Diagnostic Trouble Code Definitions). ISO 15031-1 provides an introduction to the series of
19、International Standards. Most automobile manufacturers equip at least a portion of their product line with some on-board diagnostic (OBD) capability. These systems provide an indication as to the general location of the diagnosed malfunction. This information is provided through an alphanumeric code
20、. -,-,- INTERNATIONAL STANDARD ISO 15031-6:2005(E) ISO 2005 All rights reserved 1 Road vehicles Communication between vehicle and external equipment for emissions-related diagnostics Part 6: Diagnostic trouble code definitions 1 Scope This part of ISO 15031 provides recommended uniformity for alphan
21、umeric trouble codes. It further provides guidance for uniform messages associated with these codes. It specifies several sections addressing format, structure, messages and a few examples, and is applicable to electrical/electronic systems diagnostics of motor vehicles. Annex A specifies the diagno
22、stic trouble code naming guidelines for signals from components, signals to components, system based diagnostics, and signals using a subfault strategy. Annex B specifies the actual code assignments and description for powertrain system diagnostic trouble codes. Annex C specifies the actual code ass
23、ignments and description for network communication system diagnostic trouble codes, body system diagnostic trouble codes, and chassis system diagnostic trouble codes. Annex D specifies the DTC failure category and Subtype definition of the DTC failure type byte which is an extension of a base DTC to
24、 more precisely describe the fault symptom of the DTC. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (includ
25、ing any amendments) applies. ISO/TR 15031-2, Road vehicles Communication between vehicle and external equipment for emissions- related diagnostics Part 2: Terms, definitions, abbreviations and acronyms ISO 14229-1, Road vehicles Unified diagnostic services (UDS) Part 1: Specification and requirement
26、s 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 15031-2 and the following apply. 3.1 circuit/open fixed value or no response from the system where specific high or low detection is not feasible or can be used in conjunction with circuit low and hig
27、h codes where all three circuit conditions can be detected NOTE The term “malfunction” has, in most cases, been deleted from the DTC description. -,-,- ISO 15031-6:2005(E) 2 ISO 2005 All rights reserved 3.2 range/performance circuit in the normal operating range, but not correct for current operatin
28、g conditions NOTE This may be used to indicate stuck or skewed values indicating poor performance of a circuit, component or system. 3.3 low input circuit voltage, frequency, or other characteristic measured at the control module input terminal or pin that is below the normal operating range 3.4 hig
29、h input circuit voltage, frequency, or other characteristic measured at the control module input terminal or pin that is above the normal operating range 3.5 bank specific group of cylinders sharing a common control sensor NOTE 1 Bank 1 always contains cylinder number 1; bank 2 is the opposite bank.
30、 NOTE 2 If there is only one bank, bank 1 DTCs are used, and the word “bank” may be omitted. With a single bank system using multiple sensors, bank 1 is used. 3.6 sensor location location of a sensor in relation to the engine air flow, starting from the fresh air intake through to the vehicle tailpi
31、pe or fuel flow from the fuel tank to the engine, numbered in order 1, 2, 3 and so on NOTE See Figure 1 through Figure 7. Key B1 cylinder Bank 1 S1 sensor 1 1 V6/V8/V12 cylinder engine with exhaust banks B2 cylinder Bank 2 S2 sensor 2 2 catalyst S3 sensor 3 3 tail pipe a wide range b heated Figure 1
32、 Example of V6/V8/V12 cylinder engine with two exhaust banks and four catalysts ISO 15031-6:2005(E) ISO 2005 All rights reserved 3 Key B1 cylinder Bank 1 S1 sensor 1 1 V6/V8/V12 cylinder engine with exhaust banks B2 cylinder Bank 2 S2 sensor 2 2 catalyst S3 sensor 3 3 tail pipe a wide range b heated
33、 Figure 2 Example of V6/V8/V12 cylinder engine with two exhaust banks and three catalysts Key B1 cylinder Bank 1 S1 sensor 1 1 4-cylinder engine with exhaust banks S2 sensor 2 2 catalyst S3 sensor 3 3 tail pipe a wide range b heated Figure 3 Example of L4/L5/L6 cylinder engine with one exhaust bank
34、and two catalysts -,-,- ISO 15031-6:2005(E) 4 ISO 2005 All rights reserved Key B1 cylinder Bank 1 S1 sensor 1 1 4-cylinder engine with exhaust banks S2 sensor 2 2 catalyst 3 tail pipe a wide range b heated Figure 4 Example of L4/L5/L6 cylinder engine with one exhaust bank and one catalyst Intake air
35、 system pressure sensor location for boosted applications in relation to the engine air flow, including the fresh air inlet, boost device and engine manifold. Components A air cleaner B MAF C throttle body D turbocharger/supercharger E MAP (manifold pressure closest to the intake valves) F inlet (pr
36、essure after the throttle body, but before the pressurizing device) G BARO (atmospheric pressure) Figure 5 Turbocharger/supercharger pressure sensor location draw-thru system -,-,- ISO 15031-6:2005(E) ISO 2005 All rights reserved 5 Components A air cleaner B MAF C throttle body D turbocharger/superc
37、harger E MAP (manifold pressure closest to the intake valves) F boost (pressure after the pressurizing device, but before the throttle body) G BARO (atmospheric pressure) Figure 6 Turbocharger/supercharger pressure sensor location blow-thru system Components A air cleaner B MAF D Turbocharger/superc
38、harger E MAP (manifold pressure closest to the intake valves) G BARO (atmospheric pressure) Figure 7 Turbocharger/supercharger pressure sensor location no throttle body (diesel) ISO 15031-6:2005(E) 6 ISO 2005 All rights reserved 3.7 left/right and front/rear component identified by its position as i
39、f it can be viewed from the drivers seating position 3.8 “A” “B” manufacturer defined when components indicated by a letter 3.9 intermittent/erratic temporarily discontinuous signal where the duration of the fault is not sufficient to be considered open or short, or the rate of change is excessive 4
40、 General specifications Table 1 specifies systems, code categories, hexadecimal values and particular sections of electrical/electronic systems diagnostic. Table 1 General code specifications System Code categories Hex value Appendix Body B0xxx B3xxx 8xxx Bxxx B Chassis C0xxx C3xxx 4xxx 7xxx C Power
41、train P0xxx P3xxx 0xxx 3xxx P Network U0xxx U3xxx Cxxx Fxxx U The recommended DTCs consist of a three-digit numeric code preceded by an alphanumeric designator. The alphanumeric designators are “B0”, “B1”, “B2”, “B3”, “C0”, “C1”, “C2”, “C3”, “P0”, “P1”, “P2”, “P3”, “U0”, “U1”, “U2”, “U3”, correspond
42、ing to four sets of body, four sets of chassis, four sets of powertrain and four sets of network trouble codes. The code structure itself is partially open-ended. A portion of the available numeric sequences (portions of “B0”, “C0”, “P0”, “P2”, “P3”, “U0” and “U3”) is reserved for uniform codes assi
43、gned by this or future updates. Detailed specifications of the DTC format structure are specified in Clause 5. Most circuit, component, or system diagnostic trouble codes that do not support a subfault strategy are specified by four basic categories: Circuit/open, Range/performance, Circuit low, and
44、 Circuit high. Circuit low is measured with the external circuit, component, or system connected. The signal type (voltage, frequency, etc.) shall be included in the message after circuit low or circuit high. Circuit high is measured with the external circuit, component, or system connected. The sig
45、nal type (voltage, frequency, etc.) may be included in the message after circuit low or circuit high. ISO 15031-6:2005(E) ISO 2005 All rights reserved 7 5 Format structure 5.1 Description The diagnostic trouble code consists of an alphanumeric designator, B0-B3 for body, C0-C3 for chassis, P0-P3 for
46、 powertrain, and U0-U3 for network communication, followed by three characters. The assignment of the proper alpha designator should be determined by the area most appropriate for that function. In most cases, the alpha designator will be implied since diagnostic information will be requested from a
47、 particular controller. However, this does not imply that all codes supported by a particular controller shall have the same alphanumeric designator. The codes are structured as in Figure 8. Figure 8 Structure of diagnostic trouble codes EXAMPLE 1 The 2-byte DTC as a data bus value $9234 would be di
48、splayed to technicians as the manufacturer controlled body code B1234 (see Figure 9). DTC High Byte DTC Low Byte $9 $2 $3 $4 1 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 B 1 2 3 4 Figure 9 Example of 2-byte diagnostic trouble code structure -,-,- ISO 15031-6:2005(E) 8 ISO 2005 All rights reserved EXAMPLE 2 The 3-byte DTC as a data bus value $923400 would be displayed to technicians as the manufacturer controlled body code B1234-00 (see Figure 10). See Annex D for DTC Low Byte (Failure Type Byte) definitions. The low byte shall be displayed