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Engine Control System & Fuel System - 5.3L - Introduction (2 Of 2)

Fig 1: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Connector End View
GM456551Courtesy of GENERAL MOTORS CORP.
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Connector Parts Information

Connector Part Information 
  • OEM: 12176897
  • Service: 15305960
  • Description: 4-Way F Metri-Pack 150 Series Sealed (BK)
Terminal Part Information 
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Connecter Terminal Identification

Pin Wire Color Circuit No. Function
A TN 1664 HO2S Low Signal - Bank 1 Sensor 1
B PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1
C BK/WH 3113 HO2S Heater Low Control - Bank 1 Sensor 1
D PK 1539 Ignition 1 Voltage
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