This Standard specifies the technical specification and test method for on-board diagnostic (OBD) system - compression ignition engines and vehicles with such engines; and positive ignition engines and vehicles with such engines which are fuelled by natural gas (NG) or liquid petroleum gas (LPG). This Standard applies to the type approval and production consistency inspection for the OBD system of the compression ignition (including gas fuelled positive ignition) engines; and the relevant vehicles of classes M2, M3, N1, N2 and N3 which are designed for speed greater than 25 km/h; and vehicles of class M1 which have total mass greater than 3500 kg.3.16 Access OBTAIN all the emission-related OBD data via the standard serial diagnosis interface. These data include all the fault codes for examination, diagnosis, maintenance or repair of the vehicle emission-related components and parts. ... 3.18 Deteriorated component/system In order to carry out the OBD- system type approval test, the deteriorated engine system or exhaust after- treatmentanbsp;...
|Title||:||HJ 437-2008: Translated English PDF of Chinese Standard HJ437-2008|
|Publisher||:||www.ChineseStandard.net - 2014-03-17|