Engine Coolant Temperature (ECT) Sensor

Fig 1: Engine Coolant Temperature (ECT) Sensor Connector

Courtesy of GENERAL MOTORS CORP.

Engine Controls Connector End Views

Connector Part Information  OEM: 1928403874 Service: 88988584 Description: 2-Way F (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

Pin	Wire Color	Circuit No.	Function
1	YE	410	Coolant Temperature Sensor Signal
2	TN	470	Sensor Return