CL 55 AMG (215.373) V8-5.5L (113.982) (2001)
Outside Temperature Display Sensor: Description and Operation
Shown On Model 220
Position
The outside temperature display sensor is in the bumper on the left-hand side.
Task
Records outside temperature as electrical value
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far displaying the outside temperature in the instrument cluster (A1) and
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Controlling various functions that depend on the outside temperature.
Design
The sensor is housed in a casing made from high quality plastic that is clipped to the vehicle.
Function
The outside temperature display (B14) is a temperature-dependent resistor with a negative temperature coefficient (NTC): As the temperature
increases the resistance value becomes smaller.
The external temperature display sensor (B14) is read in by a control module that sends the measurement as a message on the interior CAN.