freightliner 108SD 2021 - Page 166

08/20/2009 f490355
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NOTE: The sensor box (item 8) contains the SCR inlet and outlet NOx sensors, DPF outlet pressure sensor, and the
DOC inlet pressure sensor.
1. DOC Outlet Temperature
Sensor
2. DOC Inlet Pressure Sensor
Port
3. DOC Inlet Temperature Sensor
4. Front Heat Shield
5. DEF Nozzle
6. Exhaust Outlet
7. DEF Metering Unit
8. Sensor Box (see note above)
9. Exhaust Inlet
10. SCR Outlet Temperature
Sensor
11. SCR Outlet NOx Sensor Port
12. SCR Inlet NOx Sensor Port
13. 14-Pin Connectors
14. DPF Outlet Pressure Sensor
Port
15. SCR Inlet Temperature Sensor
Fig. 1, Detroit Diesel One-Box ATS (with Sensor Locations)
Exhaust 49
108SD and 114SD Maintenance Manual, December 2015 49/3