LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 2007 >> G6 Base, 2.4 B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 2.4L - Introduction (2 Of 2) >> Component Locator >> Engine Controls Connector End Views >> Heated Oxygen Sensor (HO2S) 2
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Heated Oxygen Sensor (HO2S) 2

Fig 1: HO2S 2 Connector End View
GM280761Courtesy of GENERAL MOTORS CORP.
HO2S 2 Connector Part Information

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)
HO2S 2 Connector Terminal Identification

Pin Wire Color Circuit No. Function
A TN/WH 3121 HO2S Low Reference (Sensor 2)
B PU 3120 HO2S Reference Voltage (Sensor 2)
C GY/WH 3122 HO2S Heater Low Control (Sensor 2)
D PK/BK 5291 Ignition 1 Voltage
scientia non olet · About LEMON Manuals