Heated Oxygen Sensor (HO2S) Sensor 2 (L61)

WARNING: This page is about a different car, the 2008 Chevrolet Malibu Classic. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Heated Oxygen Sensor (HO2S) Sensor 2 (L61) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
A	0.5 TN/WH	3121	HO2S Low Signal
B	0.5 PU	3120	HO2S High Signal
C	0.5 GY/WH	3122	HO2S Heater Low Control
D	0.5 PK/BK	5294	Ignition 3 Voltage

Connector Part Information

OEM: 12160825
Service: 15305801
Description: 4-Way M Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

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