E 320 CDI (211.026) L6-3.2L DSL Turbo (648.961) (2005)
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Ambient Temperature Sensor / Switch HVAC: Description and Operation
GF83.57-P-2103-01T Outside Air Temperature Sensor Function
GF83.57-P-2103-01T Outside Air Temperature Sensor Function
The resistance of the outside temperature display temperature sensor (B14) depends on the outside temperature.
The resistance value is evaluated by the driver-side SAM control unit with fuse and relay module (N10/1) and made available to the corresponding
control units via the interior CAN.
Taking into account vehicle speed during the measurement of outside temperature prevents excessive temperatures from arising due to a vehicle
standstill or driving slowly, e.g. through thermal radiation from the engine, and being passed on.
The coolant temperature sensor (B14) operates in a range of values between 40 °C and +85 °C.
The last temperature measured is used when the ignition is switched on and off and at speeds below 20 km/h.
