Heated Oxygen Sensor (HO2S) Connector End Views

Heated Oxygen Sensor (HO2S) 1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		PED 12162144 4-Way F Metri-Pack 150 Series Sealed (BK)
Pin	Wire Color	Circuit No.	Function
A	WH	428	Heated Oxygen Sensor (HO2S) 1 Signal
B	D-BU/BK	429	Heated Oxygen Sensor (HO2S) 1 Low Reference
C	BN	50	Ground
D	BN	1733	Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) 2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		PED 12162144 4-Way F Metri-Pack 150 Series Sealed (BK)
Pin	Wire Color	Circuit No.	Function
A	D-GN/BK	1670	Heated Oxygen Sensor (HO2S) 2 Low Reference
B	L-GN/OG	413	Heated Oxygen Sensor (HO2S) 2 Signal
C	BN	1671	Heated Oxygen Sensor (HO2S) 2 Heater Control
D	BN	1733	Ignition 1 Voltage