Coolant Temperature Sensor, Design

Coolant Temperature Sensor, Design




Illustration shows 2-pin plug connection
B11 Coolant temperature sensor




Illustration shows 4-pin plug connection
B11/4 Coolant temperature sensor (further designations e.g. B11/3)

Metal housing with NTC resistor. 2-pin plug connection
Contact assignment at connector:
Contacts 1 and 2 engine control module
Metal housing with two NTC resistors. 4-pin plug connection Contact assignment at connector:
Contacts 1 and 2 engine control module
Contact 3 and 4 air conditioning/ automatic air conditioning