Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2

WARNING: This page is about a different car, the 2011 GMC Acadia, 2011 Chevrolet Traverse, and 2011 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

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

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	-	-	Not Used
D	0.5 PK/BK	5293	Powertrain Main Relay Fused Supply
E	0.5 GY/WH	3122	HO2S Heater Low Control (Bank 1 Sensor 2)

Connector Part Information

Harness Type: Engine
OEM Connector: 12092839
Service Connector: 88987991
Description: 5-Way M Metri-Pack 150 Series (BK)

Terminal Part Information

Terminated Lead: 13575420
Release Tool: J-38125-12A
Diagnostic Test Probe: J-35616-3 (GY)
Terminal/Tray: 12045773/2
Core/Insulation Crimp: E/1