Coolant temperature sensor (202), ME9
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Coolant temperature sensor (202), ME9
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Coolant temperature sensor (202)
Informs the control module of current coolant temperature.
The value from the temperature sensor is used for:
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controlling the radiator fans
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determining injection duration during preinjection
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determining injection duration during starter motor cranking
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determining when closed loop should be engaged
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correcting idling speed.
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The temperature sensor is of NTC type.
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Pin No.
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Signal type
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Description
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1
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Signal
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The sensor is supplied +5 V via 1.5 kΩ from ECM pin 23(A).
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2
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Ground
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Sensor's ground. Connected to ECM pin 7(A).
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