Commission Directive 2005/78/EC (repealed)Show full title

4. REQUIREMENTS RELATING TO THE TYPE-APPROVAL OF OBD SYSTEMS

4.1.

For the purpose of type-approval, the OBD system shall be tested according to the procedures given in Appendix 1 to this Annex.

An engine representative of its engine family (see section 8 of Annex I to Directive 2005/55/EC) shall be used for the OBD demonstration tests or the test report of the parent OBD system of the OBD engine family will be provided to the type-approval authority as an alternative to carrying out the OBD demonstration test.

4.1.1.

In the case of OBD stage 1 referred to in section 3.2, the OBD system must:

4.1.1.1. indicate the failure of an emission-related component or system when that failure results in an increase in emissions above the OBD thresholds given in the table in Article 4(3) of this Directive, or;

4.1.1.2. where appropriate, indicate any major functional failure of an exhaust aftertreatment system.

4.1.2. In the case of OBD stage 2 referred to in section 3.3, the OBD system must indicate the failure of an emission-related component or system when that failure results in an increase in emissions above the OBD thresholds given in the table in Article 4(3) of this Directive.

4.1.3. In the case of both OBD 1 and OBD 2, the OBD system must indicate the lack of any required reagent necessary for the operation of an exhaust aftertreatment system.

4.2. Installation requirements

4.2.1. The installation on the vehicle of an engine equipped with an OBD system shall comply with the following provisions of this Annex with respect to the vehicle equipment:

• the provisions of sections 3.6.1, 3.6.2 and 3.6.5 concerning the MI and, where appropriate, additional warning modes;

• when applicable, the provisions of section 6.8.3.1 concerning the use of an on-board diagnostic facility;

• the provisions of section 6.8.6 concerning the connection interface.

4.3. Type-approval of an OBD system containing deficiencies

4.3.1. A manufacturer may request to the authority that an OBD system be accepted for type-approval even though the system contains one or more deficiencies such that the specific requirements of this Annex are not fully met.

4.3.2. In considering the request, the authority shall determine whether compliance with the requirements of this Annex is feasible or unreasonable.

The authority shall take into consideration data from the manufacturer that details such factors as, but not limited to, technical feasibility, lead time and production cycles including phase-in or phase-out of engines designs and programmed upgrades of computers, the extend to which the resultant OBD system will be effective in complying with the requirements of this directive and that the manufacturer has demonstrated an acceptable level of effort toward the requirements of the Directive.

4.3.3. The authority will not accept any deficiency request that includes the complete lack of a required diagnostic monitor.

4.3.4. The authority shall not accept any deficiency request that does not respect the OBD threshold limits given in the table in Article 4(3) of this Directive.

4.3.5. In determining the identified order of deficiencies, deficiencies relating to OBD Stage 1 in respect of sections 3.2.2.1, 3.2.2.2, 3.2.2.3, 3.2.2.4 and 3.4.1.1 and OBD Stage 2 in respect of sections 3.3.2.1, 3.3.2.2, 3.3.2.3, 3.3.2.4 and 3.4.1.1 of this Annex shall be identified first.

4.3.6. Prior to or at the time of type-approval, no deficiency shall be granted in respect of the requirements of section 3.2.3 and section 6, except sub-section 6.8.5 of this Annex.

4.3.7. Deficiency period

4.3.7.1. A deficiency may be carried-over for a period of two years after the date of type-approval of the engine type or vehicle in respect of its engine type, unless it can be adequately demonstrated that substantial engine modifications and additional lead-time beyond two years would be necessary to correct the deficiency. In such a case, the deficiency may be carried-out for a period not exceeding three years.

4.3.7.2. A manufacturer may request that the original type-approval authority grant a deficiency retrospectively when such a deficiency is discovered after the original type-approval. In this case, the deficiency may be carried-over for a period of two years after the date of notification to the type-approval authority unless it can be adequately demonstrated that substantial engine modifications and additional lead-time beyond two years would be necessary to correct the deficiency. In such a case, the deficiency may be carried-out for a period not exceeding three years.

4.3.7.3. The authority shall notify its decision in granting a deficiency request to all authorities in other Member States according to the requirements of Article 4 to Directive 70/156/EEC.