Active standard | Published: 01/03/2020

SAE J2744

Requirements for Built-in Service Port for On-Board Diagnostics

Available languages: English

Available design: electronic design (pdf), Print design

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Detail information

Designation: SAE J2744

Publication date: 01/03/2020

Pages: 0

Country: American technical standard

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Anotation

This document presents the requirements for a built-in service port to be used in vehicles intended to comply with Enhanced Evaporative Emissions Requirements. The primary function of the Service Port (Valve Assembly-Evaporative Emission Canister Purge Harness Service) is to provide non-destructive access to the evaporative emissions system to enable testing of the integrity of the system. The Service Port is used to introduce air pressure or fuel vapors into, or evacuates them out of, the system. This access may be used for the following evaluations:

• Evaporative System CertificationsCanister Loading and Purging
• End-of-line TestingSystem Integrity
• Service (e.g. OBD MIL on)Leak Location and Repair Verification
• In-Use Compliance TestingCanister Loading and Purging
• Inspection/Maintenance TestingSystem Integrity and Purge Check

SUBFILE: Automotive
TYPE OF DOCUMENT: Ground Vehicle Standard

Stabilized: Mar 2020 SAE - Standards Status Definitions