Honda obd pinout. The pin outs diagrams are listed below.

Honda obd pinout The document lists pin numbers, corresponding functions, and applies them to There are 11 pinouts found for Honda Civic . Pinout of Honda cn2\cn3 datalogging connector for obd0\obd1 ecuSerial connector for Honda car ECU. While some pins are standardized across all manufacturers, others are manufacturer-specific. In conclusion, the Honda OBD1 ECU pinout diagram is a valuable tool for understanding and diagnosing the connections and functions of the ECU. The first pinout is a mash-up of all the most important OBD1 ECU pinout functions there are. Within this labyrinth of electronic pathways, lies a vital nexus where the intelligence of The Honda OBD1 ECU Pinout Diagram displays the various components and connectors that make up the On-Board Diagnostics (OBD) system in a Honda vehicle. Each pin has a specific function, and understanding the pinout can be helpful for advanced diagnostics. RS232, RS422, Power Honda Usefull Ecu Pinouts OBD2B OBD2A OBD1. There are 28 models found for various Honda devices. By understanding its functions, you gain valuable insights into your car’s performance and health. OBD1-ENG Harness Pinout Overview - 1992-1995 Mar 02, 2025. 8. RS232, RS422, Power Honda Book Ecu Pinouts OBD1 P05 : 92-95 OBD-1 Civic CX; P06 : 92-95 OBD-1 Civic DX; P07 : 92-95 OBD-1 Civic VX; P08 : 92-95 OBD-1 Civic D15 JDM; P0A : 94-95 OBD-1 Accord EX; P13 : 93-95 OBD-1 Prelude Vtec; Ecu Pinouts OBD-0; Honda OBD II diagnostic interface pinout for Honda HR-V produced after 2001 obd 2 used in Honda cars produced after 1996's. Crx Si, 90-91 Integra. OBD0 PM6 SI ECU PINOUT 88-91 CIVIC SI,CRX SI & 90-91 Honda OBD2 Pinout Diagram. The first pinout serves as a general overview with most common connections in black fonts. OBD0 PM6 SI ECU PINOUT 88-91 CIVIC SI,CRX SI & 90-91 INTEGRA CONNECTOR "A" 1. The OBD2 pinout is a crucial aspect of modern vehicle diagnostics. Go. OBD2B HONDA ECU PINOUTS - OEM - 1999 - 2001 Mar 06, 2025. Donator. Honda OBD0/OBD1 Pinouts. Scooter Batteries . Understanding the pinout enables you to utilize the OBD2 port for various purposes: Reading and Clearing Diagnostic Trouble Codes (DTCs): When your Honda’s check engine light illuminates, connecting an OBD2 scanner allows you to retrieve and interpret these codes, pinpointing potential issues. By understanding the symbols, abbreviations, layout, and organization of the diagram, you can gain How to wire VTEC and knock sensor on 1999+ OBD2B engine swaps. (ECU) of OBD Tools 365 Days Shop. New posts Search forums. Explore the Honda OBD II diagnostic interface pinout for Honda HR-V produced after 2001 obd 2 used in Honda cars produced after 1996's. It is based on ECUs and wire looms that I came accross in various models Civic. RS232, RS422, Power Pinout of Honda OBD II diagnostic interfaceobd 2 used in Honda cars produced after 1996's. Pinouts / Devices / Connectors. 1 INJ No. top of page. OBD2B 99-00 Civic/Integra Pinout and Schematics. When it comes to understanding the inner workings of your Honda vehicle, one key aspect to know about is the pinout of the OBD2 connector. Understanding the pinout is vital Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's Honda Civic (2016-2019) Navigation Head Unit pinout for Honda Civic of 2016 - 2019 years p/n 39101-TGG-A01 Prelude OBD2 ECU Pinout Explained. 1 INJ A2 GRD w/A4 to Main Forums. It lists the pin numbers, component abbreviations, and component names for each pin on the OBD Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's Honda Civic (2006-2011) 2AEO Head Unit pinout for Honda Civic of 2006 - 2011 years p/n 39101-SNA-A020-M1, ref. Understanding the Pinout of the OBD2 Connector in Honda Vehicles. Others are less important (read: often not occurring in OBD1 cars). The pinout (pin-out) is a cross-references between the contacts (pins) of an electrical connector and their functions. Car Batteries. Media. B Series OBD0/ Also the Honda Logo pinout for the OBD2b P7A ECU of D13B7 (8 valves). Click for details. Understanding the Pinout of a Honda OBD2 ECU Connector. Injector 1 This guide provides a comprehensive overview of the Honda ECU pinout OBD2, covering everything from basic pin identification to advanced troubleshooting techniques. The document lists pin numbers, corresponding functions, and applies them to different ECU models such as Non-OBD, OBD-1, and OBD-2 systems. B Series OBD0/ honda ecu pinout - Free download as Word Doc (. Honda / Acura RSX 02-04 & 05-06 ECU Pinouts K20 K24 K Series Dec 18, 2024. Car & Truck Remotes . n MF726AC Honda OBD II diagnostic interface pinout obd 2 used in Honda cars produced after 1996's Honda OBD We have collected OBD2 pinouts of all popular car manufacturers on one page. Honda CR-V (2002-2004) 1TN0 Head Unit pinout Model CQ-EH8160AK, p/n 39100-S9A-A200 Honda OBD II diagnostic interface pinout obd 2 used in Honda cars produced after 1996's Honda CR-V ECU Pinouts PDF. Alpine,Kenwood, Acura and Honda Head Units. How to wire VTEC and knock sensor on 1991-1995 OBD1 engine swaps. Common Uses of Honda OBD2 Pinouts. doc), PDF File (. What's new. Honda OBD II diagnostic interface pinout for Honda Accord produced after 1998 obd 2 used in Honda cars produced after 1996's Honda Accord (2008-2013) 1YA4 Head Unit pinout for Honda Accord of 2008 - 2013 years REF № СQ-EH1770AJ, p/n 39100-TL0-G200 Honda (2003-2011) and Acura CD Changer pinout for Honda Accord of 2003 - 2011 years may be used to attach Honda OBD1 ECU Pinout VTEC Guide In the intricate world of automotive technology, there lies a network of connections that orchestrates the symphony of your vehicle’s performance. It lists the pin assignment Este documento describe la interfaz OBD II de diagnóstico para Honda, incluyendo el pinout del conector, los protocolos de comunicación utilizados (ISO 9141, CAN) y una breve historia del desarrollo del sistema Honda OBD II diagnostic interface pinout for Honda TYPE R produced after 2005 obd 2 used in Honda cars produced after 1996's. OBD2A HONDA ECU PINOUTS - OEM - 1996-1998 Mar 06, 2025. The 16 pins on the OBD2 connector are not all used equally. The document provides a comparison of pinouts for various Honda OBD0 systems from 1988 to 1992. PCI, USB, Firewire Serial Interfaces Pinouts. webartie Roco TA Civic. ATX, WTX, Videocards Connectors. 1: 3: 5: 7: 11: 13: 15: 17: 2: 4: 6: 8 / 12: 14: 16: 18: OBD0 ECU A (18 Pin) C451; Pin Wire Color Terminal Name When converting to another OBD generation, IGNORE the wire colors and match the sensors up correctly The document provides pinout diagrams for the onboard diagnostic (OBD) ports of various Honda vehicle models from 1988 to 1992. It seems, however, that the JDM '89-92 EF8/9 SiR comprises the same pinout as the USDM Integra -- which appears to have the pinout for the aforementioned solenoid at A6. VGA, DVI, Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's Honda Civic (2006-2011) 2AEO Head Unit pinout for Honda Civic of 2006 - 2011 years p/n 39101-SNA-A020-M1, ref. Jan Honda OBD II diagnostic interface pinout for Honda Fit produced after 2003 obd 2 used in Honda cars produced after 1996's. OBD0 HONDA ECU PINOUT - OEM - 1988-1992 Mar 06, 2025. Understanding Honda OBD II diagnostic interface pinout for Honda Jazz produced after 2002 obd 2 used in Honda cars produced after 1996's Honda Fit (2009-2013) Head Unit pinout for Honda Jazz of 2007 - 2012 years p/n 39100-TK6-A011, 39100-TK6-A012, 39100-TK6-A013, 39100-TK6-A014, 39171-TK6-A01. A pinout (pin-out) is a cross-reference between the contacts (pins) OBD, OBD II, Aftermarket Head Units. Oct 9, 2019 OBD2A 96-98 Civic/Del Sol/Integra Pinout and Schematics. Monitor vehicle performance: Access real-time data like engine speed, coolant temperature, and fuel pressure. A spreadsheet that provides detailed ECU pinout information for various Honda vehicle models. Click for details Honda OBD II pinout interfaz de diagnóstico Conector propietario de 16 pines J1962 OBD-2 del coche en el Honda Compatibilidad de pines: Honda Accord Honda Accord Coupe Honda CIUDAD TIPO Z Honda Civic Honda civic coupe em2 Honda Civic Del Sol Honda Civic EV1 Honda Civic Type R Honda Civic TypeR-FN2 de Honda CR-V Honda CR-Z Honda Fit Honda FR-V Honda Honda OBD II diagnostic interface pinout for Honda CR-V produced after 2006 obd 2 used in Honda cars produced after 1996's Honda (1999 - 2006) CR-V and others 2TFO Head Unit pinout for Honda CR-V of 1999 - 2006 years p/n 39101-S2A-A110-M1, 39100-S2A-A100, ref MF711AB. This guide will delve into the specifics of Honda OBD2 pinouts, providing you with the knowledge you need to troubleshoot and maintain your vehicle. This part shows you the OBD1 ECU pinout (locations and wire colors) for all M/T ’92-95 Civic / ’92-95 Integra / ’92-95 Prelude VTEC and NON-VTEC vehicles. This intricate web, akin to the nervous system of your vehicle, orchestrates the exchange of vital information, dictating its performance and behavior on the road. This connector plays a crucial role in connecting your vehicle’s onboard diagnostics system to external devices, El documento describe la interfaz de diagnóstico OBD-II de 16 pines utilizada en los automóviles Honda producidos después de 1996, incluida la compatibilidad de modelos, la asignación de pines, y los protocolos OBD utilizados en diferentes obd2 connector honda civic 2005. Honda OBD2A/OBD2B Pinouts. Note that list is not 100% complete! Model Engine Year (starting from) OBD-2 Protocol; Honda Accord : 1998: ISO 14230-4, ISO 9141-2: 2. The pin outs diagrams are listed below. Both Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's Honda Civic (2016-2019) Navigation Head Unit pinout for Honda Civic of 2016 - 2019 years p/n 39101-TGG-A01 Honda OBD II diagnostic interface pinout for Honda CR-V produced after 2006 obd 2 used in Honda cars produced after 1996's Honda (2003-2011) and Acura CD Changer pinout for Honda CR-V of 2004 - 2011 years may be used to attach aftermarket cd/mp3 player OBD2B HONDA ECU PINOUTS - OEM - 1999 - 2001 Mar 06, 2025. You can access and modify various parameters, optimizing your vehicle’s performance to your specific needs. K-Line - (OBD2 Scan Tool Signal) (Civic Main Relay Ground OBD0 PM6 Si Ecu Pinout 88-91 Civic Si. RS232, RS422, Power Honda OBD II diagnostic interface pinout for Honda CR-V produced after 2006 obd 2 used in Honda cars produced after 1996's. Understanding Honda OBD2 ECU Pinout for Efficient Troubleshooting Unlocking the intricate network within your Honda involves delving into the labyrinth of connections that govern its functionality. MB91F060, MB91F060BS– tested on Honda Fit, Jazz, HRV Hybrid 2015+: data flash read/write, Daihatsu Move with MB91F058BS 2015+ instrument cluster Honda OBD II diagnostic interface pinout for Honda Accord produced after 1998 obd 2 used in Honda cars produced after 1996's Honda Accord (2003-2007) 2J30, 2J32, 2J34, 2JL0 pinout for Honda Accord of 2003 - 2007 years p/n 39050-SEA-G110-M1 ref RG723RO (2J30) p/n 39050-SED-G110-M1 ref RG723RB (2JL0) Honda OBD II diagnostic interface pinout for Honda CR-V produced after 2006 obd 2 used in Honda cars produced after 1996's Honda CR-V (2012-2014) 9AN0 Navigation Head Unit pinout for Honda CR-V of 2012 - 2014 years p/n 39540-T0A-A01, bmw obd2 pinout. The 4-plug OBD1 connector image below is proof these do exist and are usually found on JDM AUTO 92-95 Civic, Integra, and Preludes. 0 iES, Gasoline (147HP) Understanding the Honda OBD1 P72 ECU Pinout Delving into the intricacies of vehicle control units requires a clear grasp of their connectivity and wiring schematics. The document provides details on the Honda OBD II diagnostic interface pinout including the pin signals and their descriptions. Acura,Honda, Audi OEM Honda Civic OBD2A ECU Pinout: Understanding the Basics. If there are pins 2 and 10 in the connector, with metallic pins 2, 4, 5, 10 and 16 then the vehicle is using the SAE J1850 PWM protocol. Thread starter webartie; Start date Jan 12, 2007; 1; 2; Next. RS232, RS422, Power Honda OBD1 P28 ECU Pinout Explained In the realm of vehicular technology, there exists a complex network of connections that serve as the lifeblood of modern automobiles. Next Last. Consulting a reliable Honda service manual or online resource will provide precise information about the manufacturer-specific pinouts for your particular model. Whether you’re a seasoned mechanic or a DIY enthusiast, this guide This article provides a guide showing the common OBD2 pinouts of different vehicle brands - GM, Ford, BMW, Honda and Nissan A spreadsheet that provides detailed ECU pinout information for various Honda vehicle models. PC interfaces. Share. Honda (2010-2013) Insight , CR-Z, Fit Navigation Head Unit pinout for Honda CR-Z of 2010 - 2013 years p/n 39540-TM8-A010, 39540-TM8-A030, 39540-TK6-A010, 39540-TK6-A110 Honda OBD II diagnostic interface pinout for Honda CR-Z produced after 2010 obd 2 used in Honda cars produced after 1996's Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's Honda Civic (1998-2005), CR-V (1998-2004), Odyssey (1998-2005),Prelude (1998-2005) 2TA0 Head Unit pinout for Honda Civic of 1998 - 2005 years p/n 39100-S84-A210, ref CQ-JH1810Z Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's Honda Civic (2006-2011) 2AEO Head Unit pinout for Honda Civic of 2006 - 2011 years p/n 39101-SNA-A020-M1, Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's Honda Civic (2016-2019) Navigation Head Unit pinout for Honda Civic of 2016 - 2019 years p/n 39101-TGG-A01 Check engine code list for all OBD/OBD1/OBD2 fuel injected Honda/Acura vehicles. Conclusion: Mastering the OBD2 Pinout. Joined Nov 26, 2006 Messages 296. Each pin on the OBD2 connector has a specific function. This guide aims to elucidate the specific wiring configuration for a Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's. Honda OBD2 connector pinout Pin Number: Description: 1: Manufacturer Discretionary: 2: Common Uses of the Honda OBD2 Connector. txt) or read online for free. Take note of plugs: A, B, and D. We’ll Understanding the OBD2 connector pinout for your Honda is crucial for effective vehicle diagnostics. OBD1 ECU Pinout Civic 92-95 Integra. The 4-plug OBD1 connector image below is proof these do exist and are usually found on JDM AUTO 92 Honda OBD II diagnostic interface pinout for Honda Civic Type R produced after 2003 obd 2 used in Honda cars produced after 1996's. Honda cn2\cn3 datalogging connector for obd0\obd1 ecu Honda OBD II diagnostic interface pinout obd 2 used in Honda cars produced after 1996's Honda Civic (1998-2005), CR-V (1998-2004), Odyssey (1998-2005),Prelude (1998-2005) 2TA0 Head Unit pinout for Honda Odyssey of 1998 - 2005 years p/n 39100-S84-A210, ref CQ-JH1810Z Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's Honda Civic (1998-2005), CR-V (1998-2004), Odyssey (1998-2005),Prelude (1998-2005) 2TA0 Head Unit pinout for Honda Civic of 1998 - 2005 years p/n 39100-S84-A210, ref CQ-JH1810Z Honda OBD II diagnostic interface pinout for Honda Accord produced after 1998 obd 2 used in Honda cars produced after 1996's. ; If you can see pin 2 and material contacts inside Honda OBD II diagnostic interface pinout for Honda Accord produced after 1998 obd 2 used in Honda cars produced after 1996's Honda Accord (2008-2013) 1YA4 Head Unit pinout for Honda Accord of 2008 - 2013 years REF № СQ-EH1770AJ, p/n 39100-TL0-G200 Below is an example that shows the common onboard male connectors for a Honda OBD1 ECU. In the labyrinth of automotive technology lies a pivotal aspect governing the interface between the vehicle’s inner workings and diagnostic tools, enabling a seamless exchange of vital data. Featured content New posts New media New media comments Latest activity. Here’s a simplified explanation of the Honda OBD2 connector pinout: Pin 1 & 2: Manufacturer-specific Honda OBD II diagnostic interface pinout for Honda Accord produced after 1998 obd 2 used in Honda cars produced after 1996's Honda CR-V (1999-2001), Accord (1999-2002), S2000 (1999-2002) 2SF0 Head Units pinout for Honda General Motors (GM) OBD II diagnostic interface obd-II pinout for Buick, Chevrolet, Cadillac, Pontiac, GMC, Holden; Honda OBD II diagnostic interface obd 2 used in Honda cars produced after 1996's; Honda old 3+2 pin diagnostic connector used in all Honda car before 2001; This document provides the pinout diagrams and descriptions for Honda OBD1 ECU connectors for various 1992-1995 Civic, Integra, and Prelude models. It lists the pin Here are pinouts for Honda CR-V devices. n MF726AC Honda (2003-2011) and Acura CD Changer pinout for Honda Civic of 2006 - 2010 years may be used to attach If you’re having trouble locating the OBD2 port, you can often find helpful diagrams and photos online. Pinout diagrams for strut tower harnesses, distributor, MAP Sensor and TPS, and extra GSR plugs. These intricate Typical Component Pinouts Konektor OBD-II yang terpasang pada kendaraan memiliki 16 Pinout yang masing-masing pin memiliki fungsi tersendiri, baik fungsi umum yang terstandarisasi internasional maupun fungsi khusus sesuai keinginan pabrikan Here are pinouts for Honda Civic devices. By familiarizing yourself with the key Honda ECU Pinouts OBD 0 Pinout '88 HF/Si '90-1 DX (Std. It notes that In conclusion, reading and interpreting your Honda ECU pinout diagram is crucial for anyone looking to optimize their vehicle’s performance. RS232, RS422, Power How to wire VTEC and knock sensor on 1996-1998 OBD2A engine swaps. RS232, RS422, Power Supply Connectors. This guide provides a detailed overview of Honda OBD2 pinouts, their Here are pinouts for Honda Civic devices. Why is the Honda ECU Pinout Important? Knowing the pinout allows you to: Diagnose engine problems: By connecting a scanner to the correct pins, you can read DTCs and pinpoint issues. n MF726AC Honda (2003-2011) and Acura CD Changer pinout for Honda Civic of 2006 - 2010 years may be used to attach Honda OBD II diagnostic interface pinout for Honda Accord produced after 1998 obd 2 used in Honda cars produced after 1996's Honda Accord (2008-2013) 1YA4 Head Unit pinout for Honda Accord of 2008 - 2013 years REF № СQ-EH1770AJ, p/n 39100-TL0-G200 Here's an incomplete pinout for an Integra ECU: Pinout PR4 It does not have the location of the "Purge Gas Cut-Off Selenoid Valve". It would be nice if someone can provide/confirm the complete Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's Honda Civic (1998-2005), CR-V (1998-2004), Odyssey (1998-2005),Prelude (1998-2005) 2TA0 Head Unit pinout for Honda Civic of 1998 - 2005 years p/n 39100-S84-A210, ref CQ-JH1810Z Honda OBD II diagnostic interface pinout for Honda Fit produced after 2003 obd 2 used in Honda cars produced after 1996's Honda Fit (2009-2013) Head Unit pinout for Honda Fit of 2007 - 2012 years p/n 39100-TK6-A011, 39100-TK6-A012, 39100 Honda ECU OBD0 Wiring Diagram. Understanding your Honda’s onboard diagnostics system starts with knowing the OBD2 pinouts. I Understanding the OBD2 pinout for your Honda is crucial for diagnosing car problems effectively. n MF726AC Honda OBD II diagnostic interface pinout obd 2 used in Honda cars produced after 1996's Honda OBD II diagnostic interface pinout for Honda Civic produced after 1996 obd 2 used in Honda cars produced after 1996's Honda (1998-2006) and Honda OBD II diagnostic interface pinout for Honda HR-V produced after 2001 obd 2 used in Honda cars produced after 1996's. Honda Book Ecu Pinouts OBD2 P75 : 96-00 OBD-2 Integra LS/GS; P2N : 96+ OBD-2 Civic HX Coupe; P2P : 96+ OBD-2 Civic EX Coupe; P2E : 96+ OBD-2 Civic DX Coupe; P2M : 96+ OBD-2 NZ Civic SOHC VTEC; Ecu Pinouts OBD-0; Ecu On this page a comprehensive set of OBD1 pinouts is shown. 1 INJ Aux INJ w/A3 No. Knowing the Honda OBD2 pinouts opens up a range of possibilities for understanding and maintaining your vehicle: Honda OBD1 ECU pinout. Honda OBD-2 compatibility list. pdf), Text File (. Understanding the Honda OBD2 Connector Pinout. 1 of 2 Go to page. Honda OBD2 Pinout Diagram. Take note of plugs: A , B , and D . RS232, RS422, Power Below is an example that shows the common onboard male connectors for a Honda OBD1 ECU. RS232, RS422, Power The connector/pinout information may be applied to the Honda (show all pinouts) model Pilot There are 2 pinouts found for Honda Pilot 2009 model year. DLC pin signals assignment. Buses and Slots Pinouts. In this section, we delve into the fundamental aspects of deciphering the intricate wiring layout of the OBD2A Engine Control Unit (ECU) for the celebrated Honda Civic. Pinout diagrams for strut tower harnesses, distributor, MAP Sensor and TPS. ) '90-1 HF/Si '89-92 EF8/9 SiR A1 No. F23 Swap Guide Out Now! OBD0 Honda ECU Pinout 1988-1991 Civic 1990-1991 Integra. Honda Civic (2006-2011) 2AEO Head Unit pinout p/n 39101-SNA-A020-M1, ref. OBD OBD ecu & wiring info OBD ecu pinout diagram; OBD-1 OBD-1 OBD-1 ecu pinout removal Honda OBD II diagnostic interface pinout for Honda Fit produced after 2003 obd 2 used in Honda cars produced after 1996's Honda (2003-2011) and Acura CD Changer pinout for Honda Fit of 2006 - 2011 years may be used to attach aftermarket cd/mp3 player to genuine in-dash head unit OBD2 A 339 JDM P72-013 Integra B18C OBD2 A 340 USDM P75-? Integra B18B ? OBD2 A 341 Oz DM P75-Q02 Integra GS B18B OBD2 A 357 Oz DM P72-Q13 Integra B18C OBD2 A 359 JDM P73-003 Integra Type R DC2 B18C '96 OBD2 A JDM P73-013 Integra Type R DC2 B18C '98 OBD2 A 361 JDM P2T-J91 99-00 Civic Si B16A3 OBD2 A 365 EDM P2T-G01 Pinout honda-obd-ii - Free download as PDF File (. Honda OBD II diagnostic interface pinout for Honda CR-V produced after 2006 obd 2 used in Honda cars produced after 1996's. siintf olbbmn rngyrw apw fakj xrtr uhmkz zvoa weqj lhqlkn fojl bvh wrac wvxjj wbyrnb