1、_ 6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRUWLVSXEOLVKHGE6$(WRDGYDQFHWKHVWDWHRIWHFKQLFDODQGHQJLneering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, iQFOXGLQJDQSDWHQWLQIULQJHPHQWDULVLQJWKHUHIURPLVWKHVROHUHVSRQVLELOLWRIW
2、KHXVHU SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2014 SAE International All rights reserved. No part of this publication may be reproduced, stored in
3、a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email:
4、 CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J2191_201402 SURFACE VEHICLE RECOMMENDED PRACTICE J2191 FEB2014 Issued 1997-02 Revised 2014-02 Superseding J2191 JAN2010
5、Recommended Practice for Identification of Standardized Truck and Tractor Electrical Circuits RATIONALE The SAE J2191 document is being revised to provide additional circuit ID nomenclature to the Supplemental Circuit Identifications for the following sections: Power, Instrumentation, Monitoring (Wa
6、rn Sys), Control (Fuel, Engine, Cruise), Serial/Data Communication, Operator Convenience, Entertainment, Navigation, Accessories, Emergency/Vision, and Engine Accessories. 1. SCOPE This SAE document defines a recommended practice for implementing circuit identification for electrical power and signa
7、l distribution systems of the Class 8 trucks and tractors. This document provides a description of a supplemental circuit LGHQWLILHUWKDWVKDOOEHXWLOLHGLQFRQMXQFWLRQZLWKWKHRULJLQDOHTXLSPHQWPDQXIDFWXUHUVSULPDUFLUFXLWLGHQWLILFDWLRQDV used in wire harnesses but does not include electrical or electronic d
8、evices which have pigtails. The supplemental circuit identifier is cross-referenced to a specified subsystem of the power and signal distribution system identified in Section 5. 1.1 Purpose This document will provide a common method of identifying circuit function for commercially available Class 8
9、vehicles. It will guide the service technician in diagnosing vehicle electrical subsystems. The identification method will supplement component OEM circuit identification for each major subsystem. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specification to
10、the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. SAE INTERNATIONAL J2191 Revised FEB2014 Page 2 of 10 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA an
11、d Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J1587 Electronic Data Interchange Between Microcomputer Systems in Heavy-Duty Vehicle Applications SAE J1708 Serial Data Communications Between Microcomputer Systems in Heavy-Duty Vehicle Applications SAE J1922 Powertrain Control Interface fo
12、r Electronic Controls Used in Medium- and Heavy-Duty Diesel On-Highway Vehicle Applications SAE J1939-11 Physical Layer, 250K bits/s, Twisted Shielded Pair SAE J1939-15 Reduced Physical Layer, 250K bits/sec, Un-shielded Twisted Pair (UTP) SAE J2284 High-Speed CAN (HSC) for Vehicle Applications at 50
13、0 KBPS 3. DEFINITIONS 3.1 ELECTRICAL CIRCUIT An electrical circuit includes all of the components and connecting cables, starting from the electrical energy source, going to the functional component(s) and the return route through the energy source. 3.2 GROUND An electrical conductor used as a commo
14、n return for an electric circuit(s) and with a relative zero potential. 3.3 HARNESS A group of two or more conductors bundled together. 3.4 WIRING Collectively, the cable, terminations, and supporting accessories used in the electrical distribution system. 3.5 ORIGINAL EQUIPMENT MANUFACTURER Truck/E
15、ngine/Transmission/etc. Manufacturer 4. CIRCUIT IDENTIFICATION SYSTEM 4.1 Primary Circuit Identification The OEM method of circuit identification will be known as the primary circuit identification system. SAE INTERNATIONAL J2191 Revised FEB2014 Page 3 of 10 4.2 Supplemental Circuit Identification T
16、he supplemental circuit identification system is a four character code with the first two characters referencing a general subsystem and the second two characters referencing a more specific circuit function. The subsystems and circuit functions can be found in the list of general categories shown a
17、s follows: a. Braking/Traction System (Air System) b. Charging c. Control (Fuel, Engine, Cruise, After Treatment) d. Emergency/Vision/Collision Avoidance e. Engine Accessories f. Ground g. HVAC h. Instrumentation, Monitoring (Warning Systems) i. Lighting Systems j. Operator Convenience, Entertainmen
18、t, Navigation, Accessories k. Power l. Serial/Data Communication m. Trailer Systems n. Transmission and Drive Train (Rear Axles) o. Body Functions p. Hybrid 4.3 Separator 7KHFKDUDFWHULVWREHXVHGWRVHSDUDWHWKHSULPDU2(0FLUFXLWLGHQWLILHUIURPWKHVXSSOHPHQWDOVXIIL7KHVLQJOHVSDFHRQHDFKVLGHRIWKHFKDUDFWHULVUHTX
19、LUHGIRULPSURYHGFODULW 4.4 Application The methods used to apply the supplemental circuit identification to the cables shall be specified by the OEMs. 4.4.1 Test The application durability of the supplemental circuit characters must meet the OEMs specification for abrasion and fluid resistance. SAE I
20、NTERNATIONAL J2191 Revised FEB2014 Page 4 of 10 4.5 Application to Technical Document The individual OEM shall determine the documents by which the supplemental circuit identification information will be furnished to their service organization. 4.6 Example The primary OEM circuit identifier C123 wou
21、ld be supplemented with #1512 to indicate the type of subsystem and circuit function as in Figure 1: FIGURE 1 - EXAMPLE OF CIRCUIT IDENTIFICATION 5. SAE PROCEDURE FOR GENERAL SUBSYSTEM IDENTIFICATION (GSID) AND SPECIFIC CIRCUIT IDENTIFICATION (SCID) ASSIGNMENT 5.1 Purpose To outline the procedure fo
22、r the assignment of additional GSID and SCID elements within this document. 5.2 General GSIDs and SCIDs will be requested using the request form in Appendix A. All requests for GSIDs and SCIDs will be processed by the Truck and Bus Electrical Systems Committee. 5.3 Verification of Request To ensure
23、that your request is accepted for ballot and inclusion in SAE J2191 please provide all of the information requested on the form. If information is missing the request will not be processed. If the information is complete, SAE will forward the request to the committee for approval. When the request h
24、as been approved the requester will be notified by SAE staff. 6. GENERAL CATEGORIES 6.1 See Table 1. General Categories SAE INTERNATIONAL J2191 Revised FEB2014 Page 5 of 10 TABLE 1 - GENERAL CATEGORIES Suffix Subsystem Description Circuit Function 1001 Charging Alternator Output 1002 Charging Starte
25、r Relay Output 1003 Charging Alternator Field/Regulator/I&R Term 1004 Charging Starter Relay and Controls 1005 Charging Alternator - A/C Output (TR System) 1006 Charging Starter Lockout/Overcrank 1101 Power Battery Bus Feed 1102 Power Ignition Bus Feed 1103 Power Battery Disconnect, Isolators and Sa
26、vers 1104 Power Key Switch Feed 1105 Power Cab Feed 1106 Power Acc Bus Feed 1107 Power Battery Cable 1108 Power Ignition Spare 1109 Power Battery Spare 1110 Power Accessory Spare 1111 Power Ignition Bus Control - Control of bus relay by Vehicle ECU 1112 Power APU Battery (Auxiliary Power Unit) 1201
27、Ground Instrument Ground 1202 Ground Starter Ground 1203 Ground Lighting Ground 1204 Ground Cab Ground 1205 Ground Engine Ground 1206 Ground Electronic Ground 1207 Ground Alternator Ground 1208 Ground Chassis Ground 1209 Ground Battery Ground 1301 Lighting Systems Headlamps 1302 Lighting Systems Par
28、k 1303 Lighting Systems Clearance 1304 Lighting Systems Gauge (Inst) Lamp 1305 Lighting Systems Sign 1306 Lighting Systems Spot 1308 Lighting Systems Fog/Road (Forward Facing) 1309 Lighting Systems Fog (Rear Facing) 1310 Lighting Systems ID Lamps 1311 Lighting Systems Dome (Interior) Lps 1312 Lighti
29、ng Systems Flood 1313 Lighting Systems Turn (Directional) 1314 Lighting Systems Lighted Mirror 1315 Lighting Systems Tail 1316 Lighting Systems Stop SAE INTERNATIONAL J2191 Revised FEB2014 Page 6 of 10 TABLE 1 - GENERAL CATEGORIES (CONTINUED) Suffix Subsystem Description Circuit Function 1317 Lighti
30、ng Systems DRL 1318 Lighting Systems Interior Sleeper Lighting 1319 Lighting Systems Hook Lps 1320 Lighting Systems Side Turn 1321 Lighting Systems Miscellaneous 1322 Lighting Systems Back Up 1323 Lighting Systems Beacon and Emergency Lp 1324 Lighting Systems Cargo Lamp 1401 Instrumentation, Monitor
31、ing (Warn Sys) Tachographs 1402 Instrumentation, Monitoring (Warn Sys) Fuel Low & Water in Fuel Indicator 1403 Instrumentation, Monitoring (Warn Sys) Fuel Level Gauge 1404 Instrumentation, Monitoring (Warn Sys) Fuel Pressure Gauge 1405 Instrumentation, Monitoring (Warn Sys) Main Trans Temp 1406 Inst
32、rumentation, Monitoring (Warn Sys) Engine Speed 1407 Instrumentation, Monitoring (Warn Sys) Turn Indicators (Dash Mtd) 1408 Instrumentation, Monitoring (Warn Sys) Miscellaneous Gauges 1409 Instrumentation, Monitoring (Warn Sys) Engine Oil Pressure/Level Ind. 1410 Instrumentation, Monitoring (Warn Sy
33、s) Oil Temp Gauge 1411 Instrumentation, Monitoring (Warn Sys) Turbo Boost Gauge 1412 Instrumentation, Monitoring (Warn Sys) Auxiliary Trans Temp 1413 Instrumentation, Monitoring (Warn Sys) PTO 1414 Instrumentation, Monitoring (Warn Sys) Driver Information Display 1415 Instrumentation, Monitoring (Wa
34、rn Sys) Lamp Monitoring 1416 Instrumentation, Monitoring (Warn Sys) Hi Water Temp 1417 Instrumentation, Monitoring (Warn Sys) Oil Pressure Gauge 1418 Instrumentation, Monitoring (Warn Sys) Pyrometer 1419 Instrumentation, Monitoring (Warn Sys) Vehicle Speed 1420 Instrumentation, Monitoring (Warn Sys)
35、 Low Coolant Lamp 1421 Instrumentation, Monitoring (Warn Sys) Water Temp Gauge 1422 Instrumentation, Monitoring (Warn Sys) Rear Axle Indicators 1424 Instrumentation, Monitoring (Warn Sys) Warning Lamp 1425 Instrumentation, Monitoring (Warn Sys) Driver Position (LH/RH) Selection 1426 Instrumentation,
36、 Monitoring (Warn Sys) Voltage and Amperage 1427 Instrumentation, Monitoring (Warn Sys) Brake (Air/Hydr.) Ind. and Gauge 1428 Instrumentation, Monitoring (Warn Sys) Ambient Air Temp. 1429 Instrumentation, Monitoring (Warn Sys) TPM Tire Pressure Monitor 1430 Instrumentation, Monitoring (Warn Sys) MIL
37、 (OBD On Board Diagnoistics) 1431 Instrumentation, Monitoring (Warn Sys) Lane Departure Warning 1432 Instrumentation, Monitoring (Warn Sys) Telematics 1501 Control (Fuel, Engine, Cruise) Engine Shutdown 1502 Control (Fuel, Engine, Cruise) Engine Retard/Exhaust Brake 1503 Control (Fuel, Engine, Cruis
38、e) Idle Timers or Shutdown 1504 Control (Fuel, Engine, Cruise) Cruise On/Off 1506 Control (Fuel, Engine, Cruise) Throttle (RPM Set) 1507 Control (Fuel, Engine, Cruise) Clutch 1508 Control (Fuel, Engine, Cruise) Cruise Set/Resume SAE INTERNATIONAL J2191 Revised FEB2014 Page 7 of 10 TABLE 1 - GENERAL
39、CATEGORIES (CONTINUED) Suffix Subsystem Description Circuit Function 1509 Control (Fuel, Engine, Cruise) Overspeed Protection 1510 Control (Fuel, Engine, Cruise) PTO Control 1511 Control (Fuel, Engine, Cruise) Stop Sw. Signal 1512 Control (Fuel, Engine, Cruise) Electronic Engine Control 1513 Control
40、 (Fuel, Engine, Cruise) Spare Relay Control - Control of spare relay by Vehicle ECU 1514 Control (Fuel, Engine, Cruise) Customer Defined Feature - Control of feature by Vehicle ECU 1515 Control (Fuel, Engine, Cruise) Air Management Control 1516 Control (Fuel, Engine, Cruise) Exhaust Aftertreatment (
41、Sensing) 1517 Control (Fuel, Engine, Cruise) DEF Injection 1518 Control (Fuel, Engine, Cruise) DEF Sensing 1519 Control (Fuel, Engine, Cruise) NG (Natural Gas) System Control 1601 Serial/Data Communication SAEJ1587/J1708 1602 Serial/Data Communication SAEJ1922 1603 Serial/Data Communication SAEJ1939
42、-11/J1939-14/J1939-15 1604 Serial/Data Communication SAEJ2284 1701 Braking/Traction System (Air System) ABS 1702 Braking/Traction System (Air System) Steer by Wire 1703 Braking/Traction System (Air System) Traction Control and Axle Lock 1704 Braking/Traction System (Air System) Brake by Wire 1705 Br
43、aking/Traction System (Air System) Air Dryer 1706 Braking/Traction System (Air System) Heated Drain Valve 1707 Braking/Traction System (Air System) Park Brake 1708 Braking/Traction System (Air System) Pneumatic/Hyd. Controls 1709 Braking/Traction System (Air System) Brake Wear Sensor 1801 Transmissi
44、on and Drive Train (Rear Axles) Shift Control 1802 Transmission and Drive Train (Rear Axles) Steer by Wire 1803 Transmission and Drive Train (Rear Axles) Electronic Controlled Transmission 1804 Transmission and Drive Train (Rear Axles) Two Speed Rear Axle 1805 Transmission and Drive Train (Rear Axle
45、s) Transmission Retarders 1807 Transmission and Drive Train (Rear Axles) Electronic Controlled Suspensions 1901 Trailer Systems Refrigeration Wiring 1902 Trailer Systems Trailer Fan 1903 Trailer Systems Trailer Connector 1904 Trailer Systems Controls 1905 Trailer Systems Dome Lamps 1906 Trailer Syst
46、ems ABS 1907 Trailer Systems Trailer Lamps 1908 Trailer Systems Brake by Wire 2001 Operator Convenience, Entertainment, Navigation, Accessories Audio 2004 Operator Convenience, Entertainment, Navigation, Accessories VCR/VCP 2005 Operator Convenience, Entertainment, Navigation, Accessories Power Wind
47、ows SAE INTERNATIONAL J2191 Revised FEB2014 Page 8 of 10 TABLE 1 - GENERAL CATEGORIES (CONTINUED) Suffix Subsystem Description Circuit Function 2006 Operator Convenience, Entertainment, Navigation, Accessories Keyless Entry and Security System 2007 Operator Convenience, Entertainment, Navigation, Accessories Vehicle Communications, Navigation and Tracking 2008 Operator Convenience, Entertainment, Navig
