Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 2 (LC3)

WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (LC3) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
A	0.5 TN/WH	3121	HO2S Low Signal Bank 1 Sensor 2
B	0.5 PU	3120	HO2S High Signal Bank 1 Sensor 2
C	0.5 GY/WH	3122	HO2S Heater Low Control Bank 2 Sensor 1
D	0.8 PK/BK	5294	Engine Main Relay Fused Control (5)

Connector Part Information

OEM: 15326423
Service: 88988140
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)