Division 3.2.12.2.7.6.4.2 Heavy-duty vehicles
United Kingdom
| Component | Fault code | Monitoring strategy | Fault detection criteria | MI activation criteria | Secondary parameters | preconditioning | Demonstration test |
|---|---|---|---|---|---|---|---|
| SCR Catalyst | Pxxx | NOx sensor 1 and sensor 2 signals | Difference between sensor 1 and sensor 2 signals- | 3rd cycle | Engine speed, engine load, catalyst temperature, reagent activity | Three OBD test cycles (3 short ESC cycles) | OBD test cycle (short ESC cycle) |
Notes on Division
Textual amendments
- F1
Word in Annex 1 Template heading substituted (31.12.2022 at 11.00 p.m.) by The Road Vehicles and Non-Road Mobile Machinery (Type-Approval) (Amendment and Transitional Provisions) (EU Exit) Regulations 2022 (S.I. 2022/1273), regs. 1(2), 86(2)(b)(i)
- F2
Words in Annex 1 Template substituted (31.12.2022 at 11.00 p.m.) by The Road Vehicles and Non-Road Mobile Machinery (Type-Approval) (Amendment and Transitional Provisions) (EU Exit) Regulations 2022 (S.I. 2022/1273), regs. 1(2), 86(2)(b)(ii)