LM2 Emission Control System Architecture
WARNING: This page is about a different variant/trim than selected.
NOTE:
Callouts in the following chart represent components shown in graphic above.
| Callout | Component Name |
|---|---|
| 1 | E46 ECU |
| 2 | DEF-C - Secondary DEC/GMLAN |
| 3 | NOx Sensor Position 1 - Smart/GMLAN; Engine Out |
| 4 | Exhaust Gas Temperature Sensor - Turbine Oultet |
| 5 | Close-coupled DOC |
| 6 | Exhaust Gas Temperature Sensor - DOC Outlet |
| 7 | DEF Injector - Water Cooled |
| 8 | Close-coupled SCRF |
| 9 | DPF Differential Pressure Sensor |
| 10 | LPEGR Cooler Inlet/SCRF Outlet Temperature Sensor |
| 11 | Exhaust Back Pressure Valve - DC Motor/SENT Position |
| 12 | NOx Sensor Position 2 - Smart/GMLAN; Post Catalyst |
| 13 | Underfloor SCR |
| 14 | NOx Sensor Position 3 - Smart/GMLAN; Post Catalyst 2 |
| 15 | Rear Oxidation Catalyst (ROC) |
| 16 | PM Sensor - Smart/GMLAN |
| 17 | DEF Continuous Level Sensor - DEF-C |
| 18 | DEF Heaters [2x] - DEF-C |
| 19 | DEF Pressure Sensor - DEF-C |
| 20 | DEF Pump - DEF-C |
| 21 | DEF Temperature Sensor - DEF-C |
| 22 | DEF Quality Sensor - DEF-C |
| 23 | NOx Catalytic Converter with Filter |