HJ 437-2008 Technical specification for on-board diagnostic(OBD)system of compression ignition and gas fuelled positive ignition engines of vehicles (Text of Document is in English)

01/07/2008

47P

$500.00 USD

Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Type approval and application
5 Technical requirements and test
6 Access to OBD system information
7 Production consistency
8 Extension of type approval
Annex A (Normative) Materials submitted for type approval
Annex B (Normative) Type approval test of on-board diagnosis (OBD) system
Annex C (Normative) Malfunction indicator and fault code
Annex D (Normative) Diagnosis signal