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Heated Oxygen Sensor (HO2S) 2 (LY7)

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Heated Oxygen Sensor (HO2S) 2 (LY7) Connector End View
GM831392Courtesy of GENERAL MOTORS CORP.
Heated Oxygen Sensor (HO2S) 2 (LY7)

Pin Wire Circuit Function
A 0.5 TN/WH 3121 HO2S Low Signal
B 0.5 PU 3120 HO2S High Signal
C - - Not Available
D 0.5 BK/WH 3122 HO2S Heater Low Control Sensor 2
E 0.5 PK 339 Ignition 1 Voltage
Connector Part Information 
  • OEM: 12092839
  • Service: 12092839
  • Description: 5-Way M Metri-Pack 150 Series (BK)
Terminal Part Information 
  • Pins: A, B, D, E
  • Terminal/Tray: 12045773/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-3 (GY)
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