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Engine Coolant Temperature (ECT) Sensor Connector End View

Fig 1: Engine Coolant Temperature (ECT) Sensor Connector End View
GM1538760Courtesy of GENERAL MOTORS CORP.
Engine Coolant Temperature (ECT) Sensor Connector & Terminal Parts Information

Connector Part Information 
  • OEM: 15449028
  • Service: 88987978
  • Description: 2-Way F GT 150 Series Sealed (BK)
Terminal Part Information 
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
Engine Coolant Temperature (ECT) Sensor Terminal Identification

Pin Wire Color Circuit No. Function
A TN 2761 Low Reference
B YE 410 ECT Sensor Signal
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