Heated Oxygen Sensor (HO2S) Sensor 2 Connector End View

Fig 1: HO2S Sensor 2 Connector End View

Courtesy of GENERAL MOTORS CORP.

HO2S Sensor 2 Connector Part Information

Connector Part Information  OEM: 15326423 Service: See Catalog Description: 4-Way M Metri-Pack 150 Series Sealed (GY)

Terminal Part Information  Terminal/Tray: 12045773/2 Core/Insulation Crimp: E/1 Release Tool/Test Probe: 12094429/J-35616-3 (GY)

HO2S Sensor 2 Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
A	TN/WH	3121	HO2S Low Signal
B	PU	3120	HO2S High Signal
C	BK/WH	3122	HO2S Heater Low Control Sensor 2
D	PK	839	Ignition 1 Voltage