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Engine Coolant Temperature (ECT) Sensor Connector End View

Fig 1: Engine Coolant Temperature (ECT) Sensor Connector End View
GM666646Courtesy of GENERAL MOTORS CORP.
Engine Coolant Temperature (ECT) Sensor Connector & Terminal Parts Information

Connector Part Information 
  • OEM: 15363766
  • Service: 88953309
  • Description: 2-Way F Timer JR-Power Sealed (BK)
Terminal Part Information 
  • Terminal/Tray: 4-964286-1/16
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12093647/J-35616-4A (PU)
Engine Coolant Temperature (ECT) Sensor Terminal Identification

Pin Wire Color Circuit No. Function
1 BK 2761 Low Reference
2 YE 410 ECT Sensor Signal
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