1. OBD Correspondence Group (CG)
Status Report

2. How to develop OBDII GTR
Current GTR No.18 is valid forever even though it will be amended for OBDII.
Two documents can be existing as a first edition and an amended edition.
GTR No.18
GTR No.18 Amendment1
General requirements
General requirements
OBD
stage Ⅱ
Grade A
Grade B
Grade C
OBD
Stage I
OBD
Stage I+II
OBD
stage Ⅰ
Functional aspects
Considering Grade A
e.g. Exemption of FFD for Grade A
Functional aspects
The same requirements as
Euro5 OBD
Harmonize with
- Euro4 OBD
- BS VI OBD stage I (1 April, 2020)
- J-OBD I
Harmonize with
- Euro5 OBD
- BS VI OBD stage II (1 April, 2023)
- J-OBD II
GTR 18 shall remain as it is. Amendment 1 to the GTR shall be released, which will include OBDI & OBD II based on the Euro 5 document, provided that the OBD I from Euro 5 is same as highest level of OBD I from current GTR 18.

3. Schedule for Part1 June June March June／October October June October

4. Drafting procedure of OBD Stage2
First draft of OBD2
Updated draft of OBD2
Updated draft of OBD2
EPPR
meeting
EPPR
meeting
IMMA requested to make the first draft of OBD2, based on EURO 5 of European Union.
EPPR requested Secretary to update and maintain the draft of OBD2, based on EPPR member's comments.
I. Statement of technical rationale and justification
Phase 1
Phase 2 A.
Introduction
Yes B.
Procedural background and future development of the gtr C.
Existing regulations, directives and international voluntary standards D.
Discussion of the issues addressed by the gtr
Annexes
Phase 1
Phase 2 1.
Functional aspects of On-Board Diagnostic (OBD) systems
Yes
Except for IUPR and access to OBD information
Only for IUPR and access to OBD information 2.
Minimum monitoring requirements for electric circuit diagnostics 3.
In-use performance ratio 4.
Selecting criteria for vehicles with respect to in use performance ratios 5.
On-board diagnostics family for IUPR 6.
Test type VIII requirements: OBD environmental tests 7.
Propulsion unit family definition with regard to on-board diagnostics 8.
Administrative provisions
II. Text of the global technical regulation
Phase 1
Phase 2 1.
Purpose
Yes 2.
Scope and application 3.
Definitions 4.
List of acronyms and symbols 5.
General requirements
Phase 1 draft: By May EPPR telco
IMMA requested to make the first draft of OBD2 for phase 1 and phase 2, according to the schedule.
Phase 2 draft: By Oct EPPR

5. Other Matters
India proposed to amend to GTR 18 by Splitting into independent parts as OBD II Stage 1 and OBD II Stage 2.
As a result of discussion, OBD II was not divided into two parts as OBD II Stage 1 and OBD II Stage 2.
India proposed to include idle emission control failure detection as part of OBD II Stage-1 .
CG members did not understand the necessity of idle emission control failure detection. So, India will prepare materials to explain its necessity at future meetings.
Regarding the definitions of OBD II GTR, we will discuss again after the completion of relating text.