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Engine Coolant Temperature (ECT) Sensor

Fig 1: Engine Coolant Temperature (ECT) Sensor Connector End View
GM900247Courtesy of GENERAL MOTORS CORP.
Engine Controls Connector parts Information

Connector Part Information 
  • OEM: 15449028
  • Service: 88987978
  • Description: 2-Way F GT 150 Series Sealed (BK)
Engine Coolant Temperature (ECT) Sensor

Pin Wire Color Circuit No. Function
A BK 407 Low Reference
B YE 410 ECT Sensor Signal