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46
Operation Section
Sensors and Electrical Components
Off Engine Electrical Components
Illustration 29
Typical example
(21) Inlet air temperature sensor
(22) Breather heater
(23) Heater Control Unit (HCU)
(24) Glow plug Control Unit (GCU)
(25) Coolant diverter valve
(26) DEF tank header unit
(27) Heated DEF line
(28) Tailpipe out NOx sensor
SEBU9068-03
(29) Ammonia sensor
(30) Control unit for the ammonia sensor
(31) SCR inlet/outlet temperature sensors
(32) DEF pump module
g03700028
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