EN 16661:2015
(Main)Road vehicles and Tyre Pressure Gauges (TPG) - Interoperability between Tyre Information Systems (TIS) and TPG - Interfaces and Requirements
General Information
- Abstract
This European Standard applies to the tyre pressure gauges (TPG) which operate using pressure equipment (devices used in fixed or mobile installations) to inflate the tyres of road using vehicles (M1 and M2 categories) and which may be capable of interacting with vehicles equipped with tyre pressure monitoring systems (TPMS) whereby the TPG may be steered by the TPMS/vehicle.
To set the correct tyre inflation, this European Standard defines requirements and processes for the interoperability of TPG with TPMS/vehicle, through standardized interfaces and data exchange formats allowing advanced information, management and control systems between TPG and TPMS/vehicle. The architecture is open and scalable to support the different levels of interoperability (from full interoperability to fully manual).
This European Standard does not define communication protocols (works specifically made under M/453 European mandate).
This European Standard may be applied to all TPG categories referenced in the revision of EN 12645.
The driver/operator is considered as being responsible for the validation of the parameters and tyre pressure.
This European Standard will be applicable upon development of Infrastructure solution (V2I-I2V communication solutions).
- Status
- Published
- Publication Date
- 09-Jun-2015
- Technical Committee
- CEN/TC 301 - Electrically propelled road vehicles
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 11-Oct-2021
- Completion Date
- 15-Jul-2026
Overview
EN 16661:2015 (CEN) specifies requirements, interfaces and data-exchange formats to enable interoperability between Tyre Pressure Gauges (TPG) and in‑vehicle Tyre Information Systems (TIS) / Tyre Pressure Monitoring Systems (TPMS) for road vehicles (categories M1 and M2). The standard defines an open, scalable architecture that supports varying automation levels-from fully automatic filling driven by vehicle/TIS data to fully manual operation-while leaving communication protocol work to related mandates. Drivers/operators remain responsible for final validation of tyre pressure settings.
Key topics and technical requirements
- Scope and applicability
- Applies to TPGs used with pressure equipment in fixed or mobile installations and to all TPG categories referenced in EN 12645.
- Intended to work with future V2I/I2V infrastructure solutions.
- Levels of interoperability
- Fully automatic, semi‑automatic, and manual modes; operator confirmation is required before filling.
- Required data and parameters
- Basic parameters (examples include display language, vehicle type, tyre temperature condition) supplied by the TIS/Vehicle ITS Station.
- Placard table information for vehicle platforms (recommended cold or warm inflation pressures, tyre set definitions and variants).
- Definitions of proposed (pproposed) and applied (papplied) tyre pressures; cold and warm measurement considerations.
- Feedback and diagnostic information exchanged between TPG and TIS.
- Architecture and interfaces
- Defines standardized interfaces and data-exchange formats; architecture is open and scalable.
- Communication requirements reference ETSI DTS 101 556-2 and European mandates (M/453, M/457) but the standard does not itself define wireless communication protocols.
- Validation and testing
- Process and test requirements, parameter conversion rules and tyre dimension/type definitions are provided (see Annexes A and B).
Practical applications
- Integration of smart tyre inflators in:
- Garage service bays and tyre workshops
- Fleet maintenance depots and mobile tyre‑service vehicles
- Automated roadside service points and V2I-enabled infrastructure
- Use cases:
- Automatically reading vehicle placard/TPMS data to propose correct inflation pressures
- Reducing under‑inflation risk by synchronizing TPG actions with vehicle TPMS/HMI
- Fleet management systems that standardize tyre inflation procedures across many vehicle types
Who should use EN 16661:2015
- TPG manufacturers and equipment integrators
- Vehicle OEMs and TPMS suppliers
- Workshop and fleet operators deploying connected tyre‑service solutions
- ITS infrastructure designers implementing V2I/I2V services
Related standards and references
- ETSI DTS 101 556-2 (I2V communication for TPMS)
- EN 12645 (TPG categories)
- EU Regulation No 661/2009 (TPMS requirements)
- CEN mandates M/453 and M/457 for ITS standardization
EN 16661:2015 helps harmonize tyre inflation workflows, improves safety and enables connected tyre‑service ecosystems by standardizing how TPGs and vehicle systems share and use tyre data.
Relations
- Effective Date
- 15-Jul-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Referred By
EN ISO 2808:2007 - Paints and varnishes - Determination of film thickness (ISO 2808:2007) - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
EN 16661:2015 is a standard published by the European Committee for Standardization (CEN). Its full title is "Road vehicles and Tyre Pressure Gauges (TPG) - Interoperability between Tyre Information Systems (TIS) and TPG - Interfaces and Requirements". This standard covers: This European Standard applies to the tyre pressure gauges (TPG) which operate using pressure equipment (devices used in fixed or mobile installations) to inflate the tyres of road using vehicles (M1 and M2 categories) and which may be capable of interacting with vehicles equipped with tyre pressure monitoring systems (TPMS) whereby the TPG may be steered by the TPMS/vehicle. To set the correct tyre inflation, this European Standard defines requirements and processes for the interoperability of TPG with TPMS/vehicle, through standardized interfaces and data exchange formats allowing advanced information, management and control systems between TPG and TPMS/vehicle. The architecture is open and scalable to support the different levels of interoperability (from full interoperability to fully manual). This European Standard does not define communication protocols (works specifically made under M/453 European mandate). This European Standard may be applied to all TPG categories referenced in the revision of EN 12645. The driver/operator is considered as being responsible for the validation of the parameters and tyre pressure. This European Standard will be applicable upon development of Infrastructure solution (V2I-I2V communication solutions).
This European Standard applies to the tyre pressure gauges (TPG) which operate using pressure equipment (devices used in fixed or mobile installations) to inflate the tyres of road using vehicles (M1 and M2 categories) and which may be capable of interacting with vehicles equipped with tyre pressure monitoring systems (TPMS) whereby the TPG may be steered by the TPMS/vehicle. To set the correct tyre inflation, this European Standard defines requirements and processes for the interoperability of TPG with TPMS/vehicle, through standardized interfaces and data exchange formats allowing advanced information, management and control systems between TPG and TPMS/vehicle. The architecture is open and scalable to support the different levels of interoperability (from full interoperability to fully manual). This European Standard does not define communication protocols (works specifically made under M/453 European mandate). This European Standard may be applied to all TPG categories referenced in the revision of EN 12645. The driver/operator is considered as being responsible for the validation of the parameters and tyre pressure. This European Standard will be applicable upon development of Infrastructure solution (V2I-I2V communication solutions).
EN 16661:2015 is classified under the following ICS (International Classification for Standards) categories: 17.100 - Measurement of force, weight and pressure; 35.240.99 - IT applications in other fields; 43.180 - Diagnostic, maintenance and test equipment; 83.160.10 - Road vehicle tyres. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 16661:2015 has the following relationships with other standards: It is inter standard links to ISO 639-1:2002, EN ISO 21530:2004, EN ISO 2813:2014, EN ISO 1524:2013, EN ISO 1513:2010, EN ISO 16474-1:2013, EN ISO 6504-3:2007, EN ISO 2808:2007, EN ISO 20566:2013, EN ISO 16474-2:2013, EN ISO 15528:2013, EN ISO 16474-3:2013, EN ISO 16925:2014. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 16661:2015 is associated with the following European legislation: Standardization Mandates: M/457. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 16661:2015 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cestna vozila in merilniki tlaka v pnevmatikah (TPG) - Medobratovalnost med sistemom podatkov o pnevmatikah (TIS) in TPG - Vmesniki in zahteveReifendruck Management Systeme (TPMS) und Reifendruck Anzeigen - Interoperabilität zwischen TPMS im Fahrzeug und Füllsystemen (TPG) – Schnittstellen und AnforderungenVéhicules
routiers et manomètres de pneumatiques (TPG) - Interopérabilité entre systèmes d'information de pneumatiques (TIS) et TPG - Interfaces et exigencesRoad vehicles and Tyre Pressure Gauges (TPG) - Interoperability between Tyre Information Systems (TIS) and TPG - Interfaces and Requirements43.040.80Varnostne naprave in sistemi za zadrževanjeSafety installations and restraint systems35.240.99IT applications in other fields17.100Merjenje sile, teže in tlakaMeasurement of force, weight and pressureICS:Ta slovenski standard je istoveten z:EN 16661:2015SIST EN 16661:2015en,fr,de01-september-2015SIST EN 16661:2015SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16661
June 2015 ICS 17.100; 35.240.99; 43.180; 83.160.10 English Version
Road vehicles and Tyre Pressure Gauges (TPG) - Interoperability between Tyre Information Systems (TIS) and TPG - Interfaces and Requirements
Véhicules
routiers et manomètres de pneumatiques (TPG) - Interopérabilité entre systèmes d'information de pneumatiques (TIS) et TPG - Interfaces et exigences
Reifendruck Management Systeme (TPMS) und Reifendruck Anzeigen - Interoperabilität zwischen TPMS im Fahrzeug und Füllsystemen (TPG) - Schnittstellen und Anforderungen This European Standard was approved by CEN on 16 April 2015.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16661:2015 ESIST EN 16661:2015
Parameter conversions . 22 Annex B (normative)
Tyre dimension and type . 24 Bibliography . 25
vehicle ITS Station
establishes wireless communication between the vehicle to TPG ITS station and/or RSU ITS station 5 Symbols and abbreviations DOT US Department of Transportation ECU Electronic Control Unit ENM Enumerated FL Front Left FR Front Right FS Full Scale HMI Human Machine Interface ITS Intelligent Transport System RF Radio Frequency RL Rear Left RR Rear Right RSU TIN Road Side Unit Tyre Identification Number (often called DOT) TIS Tyre Information System TPG Tyre Pressure Gauge (see also new definition under 4.1) TPMS Tyre Pressure Monitoring System V2I/I2V Vehicle to Infrastructure/Infrastructure to Vehicle WFC Wheel Fitted Component SIST EN 16661:2015
In case the vehicle manufacturer considers a supplementary pressure value, i.e. concerning warm tyre condition, this parameter needs to be modified to all tyre set variant pressures. 00 = Pressure values given for cold tyres 01 = Pressure values given for warm tyres
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