Avalanche, Sierra, Silverado, C&K Series, 1999-2005

Oxygen Sensor Connectors

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Fig. 2003-05 6.0L (L59/LM7) ENGINES

PinWire ColorCircuit No.Function
ATAN1664HO2S Low Signal - Bank 1 Sensor 1
BPPL/WHT1665HO2S High Signal - Bank 1 Sensor 1
CBLK/WHT3113HO2S Heater Low Control - Bank 1 Sensor 1
DPNK539Ignition 1 Voltage

2003-05 6.0L (L59/LM7) Engine HO2S1/1 (Bank 1 Sensor 1) Connector Pinout

PinWire ColorCircuit No.Function
ATAN/WHT1669HO2S Low Signal - Bank 1 Sensor 2
BPPL/WHT1668HO2S High Signal - Bank 1 Sensor 2
CBRN2391HO2S Heater Low Control - Bank 1 Sensor 2
DPNK1539Ignition 1 Voltage

2003-05 6.0L (L59/LM7) Engine HO2S1/2 (Bank 1 Sensor 2) Connector Pinout

ATAN1667HO2S Low Signal - Bank 2 Sensor 1
BPPL1666HO2S High Signal - Bank 2 Sensor 1
CLT GRN3212HO2S Heater Low Control - Bank 2 Sensor 1
DPNK539HO2S High Signal - Bank 2 Sensor 1

2003-05 6.0L (L59/LM7) Engine HO2S2/1 (Bank 2 Sensor 1) Connector Pinout

PinWire ColorCircuit No.Function
ATAN1671HO2S Low Signal - Bank 2 Sensor 2
BPPL1670HO2S High Signal - Bank 2 Sensor 2
CRED/WHT3223HO2S Heater Low Control - Bank 2 Sensor 2
DPNK1539Ignition 1 Voltage

2003-05 6.0L (L59/LM7) Engine HO2S2/2 (Bank 2 Sensor 2) Connector Pinout

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Fig. 2003-05 6.0L (LR4) ENGINES

PinWire ColorCircuit No.Function
ATAN1664HO2S Low Signal - Bank 1 Sensor 1
BPPL/WHT1665HO2S High Signal - Bank 1 Sensor 1
CBLK/WHT3113HO2S Heater Low Control - Bank 1 Sensor 1
DPNK539Ignition 1 Voltage

2003-05 6.0L (LR4) Engine HO2S1/1 (Bank 1 Sensor 1) Connector Pinout

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Fig.

PinWire ColorCircuit No.Function
ATAN/WHT1669HO2S Low Signal - Bank 1 Sensor 2
BPPL/WHT1668HO2S High Signal - Bank 1 Sensor 2
CBRN2391HO2S Heater Low Control - Bank 1 Sensor 2
DPNK1539Ignition 1 Voltage

2003-05 6.0L (LR4) Engine HO2S1/2 (Bank 1 Sensor 2) Connector Pinout

PinWire ColorCircuit No.Function
ATAN1667HO2S Low Signal - Bank 2 Sensor 1
BPPL1666HO2S High Signal - Bank 2 Sensor 1
CLT GRN3212HO2S Heater Low Control - Bank 2 Sensor 1
DPNK539HO2S High Signal - Bank 2 Sensor 1

2003-05 6.0L (LR4) Engine HO2S2/1 (Bank 2 Sensor 1) Connector Pinout

Click image to see an enlarged view

Fig. 2003-05 6.0L (LQ4) ENGINES

PinWire ColorCircuit No.Function
ATAN1664HO2S Low Signal - Bank 1 Sensor 1
BPPL/WHT1665HO2S High Signal - Bank 1 Sensor 1
DPNK539Ignition 1 Voltage
EBLK/WHT3113HO2S Heater Low Control - Bank 1 Sensor 1

2003-2005 6.0L (LQ4) Engine HO2S1/1 (Bank 1 Sensor 1) Connector Pinout

PinWire ColorCircuit No.Function
ATAN1667HO2S Low Signal - Bank 2 Sensor 1
BPPL1666HO2S High Signal - Bank 2 Sensor 1
DPNK539HO2S High Signal - Bank 2 Sensor 1
ELT GRN3212HO2S Heater Low Control - Bank 2 Sensor 1

2003-2005 6.0L (LQ4) Engine HO2S2/1 (Bank 2 Sensor 1) Connector Pinout

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Fig.

PinWire ColorCircuit No.Function
ATAN1671HO2S Low Signal - Bank 2 Sensor 2
BPPL1670HO2S High Signal - Bank 2 Sensor 2
CRED/WHT3223HO2S Heater Low Control - Bank 2 Sensor 2
DPNK1539Ignition 1 Voltage

2003-2005 6.0L (LR4 or LQ4) Engine HO2S2/2 (Bank 2 Sensor 2) Connector Pinout



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Fig. 2000-01 ALL ENGINES

PinWire ColorCircuit No.Function
ATAN/WHT1653Oxygen Sensor Return - Left - Forward
BPPL/WHT1665Oxygen Sensor Signal - Left - Forward
CBLK550Ground
DPNK539Fused Ignition Positive Voltage

2000 4.8L, 5.3L, 6.0L Engines HO2S1/1 (Bank 1 Sensor 1) Connector Pinout

PinWire ColorCircuit No.Function
ATAN/WHT1669Oxygen Sensor Return
BPPL/WHT1668Oxygen Sensor Signal
CBLK550Ground
DPNK1539Fused Ignition Positive Voltage

2000 4.8L, 5.3L, 6.0L Engines HO2S1/2 (Bank 1 Sensor 2) Connector Pinout

PinWire ColorCircuit No.Function
ATAN1667Oxygen Sensor Return - Right - Forward
BPPL1666Oxygen Sensor Signal - Right - Forward
CBLK550Ground
DPNK539Fused Ignition Positive Voltage

2000 4.8L, 5.3L, 6.0L Engines HO2S2/1 (Bank 2 Sensor 1) Connector Pinout

PinWire ColorCircuit No.Function
ATAN413Ground
BPPL/WHT1665Oxygen Sensor Signal - Left - Forward
CPNK539Fused Ignition Positive Voltage
DBLK550Ground

2000 4.8L, 5.3L, 6.0L Engines HO2S2/2 (Bank 2 Sensor 2) Connector Pinout

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Fig. 4.8l & 5.3l DELPHI TYPE

PinWire ColorCircuit No.Function
ATAN/WHT1653HO2S Low Signal - Bank 1 Sensor 1
BPPL/WHT1665HO2S High Signal - Bank 1 Sensor 1
CBLK550Ground
DPNK539Ignition 1 Voltage

2001-2002 4.8L, 5.3L Engines HO2S1/1 (Bank 1 Sensor 1) Connector Pinouts Delphi Type

PinWire ColorCircuit No.Function
ATAN1667HO2S Low Signal - Bank 2 Sensor 1
BPPL1666HO2S High Signal - Bank 2 Sensor 1
CBLK550Ground
DPNK539HO2S High Signal - Bank 2 Sensor 1

2001-2002 4.8L, 5.3L Engines HO2S2/1 (Bank 2 Sensor 1) Connector Pinouts Delphi Type

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Fig.

PinWire ColorCircuit No.Function
ATAN/WHT1669HO2S Low Signal - Bank 1 Sensor 2
BPPL/WHT1668HO2S High Signal - Bank 1 Sensor 2
CBLK550Ground
DPNK1539Ignition 1 Voltage

2001-2002 4.8L, 5.3L Engines HO2S1/2 (Bank 1 Sensor 2) Connector Pinouts Delphi Type

Click image to see an enlarged view

Fig.

PinWire ColorCircuit No.Function
ATAN1671HO2S Low Signal - Bank 2 Sensor 2
BPPL1670HO2S High Signal - Bank 2 Sensor 2
CBLK550Ground
DPNK1539Ignition 1 Voltage

2001-2002 4.8L, 5.3L Engines HO2S2/2 (Bank 2 Sensor 2) Connector Pinouts Delphi Type

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Fig. 4.8L & 5.3L DENSO TYPE

PinWire ColorCircuit No.Function
ATAN413HO2S Low Signal
BPPL/WHT1665HO2S High Signal - Bank 1 Sensor 1
CPNK539HO2S High Signal - Bank 1 Sensor 1
DBLK550Ground

2001-2002 4.8L, 5.3L Engines HO2S1/1 (Bank 1 Sensor 1) Connector Pinouts Denso Type

PinWire ColorCircuit No.Function
ATAN413HO2S Low Signal
BPPL/WHT1668HO2S High Signal [- Bank 1 Sensor 2]
CPNK1539Ignition 1 Voltage
DBLK550Ground

2001-2002 4.8L, 5.3L Engines HO2S1/2 (Bank 1 Sensor 2) Connector Pinouts Denso Type

PinWire ColorCircuit No.Function
ATAN413HO2S Low Signal
BPPL1666HO2S High Signal - Bank 2 Sensor 1
CPNK539HO2S High Signal - Bank 2 Sensor 1
DBLK550Ground

2001-2002 4.8L, 5.3L Engines HO2S2/1 (Bank 2 Sensor 1) Connector Pinouts Denso Type

PinWire ColorCircuit No.Function
ATAN413HO2S Low Signal
BPPL1670HO2S High Signal - Bank 2 Sensor 2
CPNK1539Ignition 1 Voltage
DBLK550Ground

2001-2002 4.8L, 5.3L Engines HO2S2/2 (Bank 2 Sensor 2) Connector Pinouts Denso Type

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Fig. 2001-02 6.0l ENGINES

PinWire ColorCircuit No.Function
ATAN413HO2S Low Reference
BPPL/WHT1665HO2S High Signal [- Bank 1 Sensor 1]
DLT GRN/WHT3213HO2S Heater High Control [- Bank 1 Sensor 1]
ELT GRN3212HO2S Heater Low Control [- Bank 1 Sensor 1]

2001-02 6.0L Engine HO2S1/1 (Bank 1 Sensor 1) Connector Pinout

PinWire ColorCircuit No.Function
ATAN413HO2S Low Reference
BPPL1666HO2S High Signal [- Bank 2 Sensor 1]
DLT GRN/WHT3213HO2S Heater High Control [- Bank 2 Sensor 1]
ELT GRN3212HO2S Heater Low Control [- Bank 2 Sensor 1]

2001-02 6.0L Engine HO2S2/1 (Bank 2 Sensor 1) Connector Pinout

Click image to see an enlarged view

Fig.

PinWire ColorCircuit No.Function
ATAN/WHT1669HO2S Low Signal [- Bank 1 Sensor 2]
BPPL/WHT1668HO2S High Signal [- Bank 1 Sensor 2]
CBLK550Ground
DPNK1539Ignition 1 Voltage

2001-02 6.0L Engine HO2S1/2 (Bank 1 Sensor 2) Connector Pinout

PinWire ColorCircuit No.Function
ATAN1671HO2S Low Signal [- Bank 2 Sensor 2]
BPPL1670HO2S High Signal [- Bank 2 Sensor 2]
CBLK550Ground
DPNK1539Ignition 1 Voltage

2001-02 6.0L Engine HO2S2/2 (Bank 2 Sensor 2) Connector Pinout

Click image to see an enlarged view

Fig. 2003-05 6.0L (L59/LM7) ENGINES

PinWire ColorCircuit No.Function
ATAN1664HO2S Low Signal - Bank 1 Sensor 1
BPPL/WHT1665HO2S High Signal - Bank 1 Sensor 1
CBLK/WHT3113HO2S Heater Low Control - Bank 1 Sensor 1
DPNK539Ignition 1 Voltage

2003-05 6.0L (L59/LM7) Engine HO2S1/1 (Bank 1 Sensor 1) Connector Pinout

PinWire ColorCircuit No.Function
ATAN/WHT1669HO2S Low Signal - Bank 1 Sensor 2
BPPL/WHT1668HO2S High Signal - Bank 1 Sensor 2
CBRN2391HO2S Heater Low Control - Bank 1 Sensor 2
DPNK1539Ignition 1 Voltage

2003-05 6.0L (L59/LM7) Engine HO2S1/2 (Bank 1 Sensor 2) Connector Pinout

ATAN1667HO2S Low Signal - Bank 2 Sensor 1
BPPL1666HO2S High Signal - Bank 2 Sensor 1
CLT GRN3212HO2S Heater Low Control - Bank 2 Sensor 1
DPNK539HO2S High Signal - Bank 2 Sensor 1

2003-05 6.0L (L59/LM7) Engine HO2S2/1 (Bank 2 Sensor 1) Connector Pinout

PinWire ColorCircuit No.Function
ATAN1671HO2S Low Signal - Bank 2 Sensor 2
BPPL1670HO2S High Signal - Bank 2 Sensor 2
CRED/WHT3223HO2S Heater Low Control - Bank 2 Sensor 2
DPNK1539Ignition 1 Voltage

2003-05 6.0L (L59/LM7) Engine HO2S2/2 (Bank 2 Sensor 2) Connector Pinout

Click image to see an enlarged view

Fig. 2003-05 6.0L (LR4) ENGINES

PinWire ColorCircuit No.Function
ATAN1664HO2S Low Signal - Bank 1 Sensor 1
BPPL/WHT1665HO2S High Signal - Bank 1 Sensor 1
CBLK/WHT3113HO2S Heater Low Control - Bank 1 Sensor 1
DPNK539Ignition 1 Voltage

2003-05 6.0L (LR4) Engine HO2S1/1 (Bank 1 Sensor 1) Connector Pinout

Click image to see an enlarged view

Fig.

PinWire ColorCircuit No.Function
ATAN/WHT1669HO2S Low Signal - Bank 1 Sensor 2
BPPL/WHT1668HO2S High Signal - Bank 1 Sensor 2
CBRN2391HO2S Heater Low Control - Bank 1 Sensor 2
DPNK1539Ignition 1 Voltage

2003-05 6.0L (LR4) Engine HO2S1/2 (Bank 1 Sensor 2) Connector Pinout

PinWire ColorCircuit No.Function
ATAN1667HO2S Low Signal - Bank 2 Sensor 1
BPPL1666HO2S High Signal - Bank 2 Sensor 1
CLT GRN3212HO2S Heater Low Control - Bank 2 Sensor 1
DPNK539HO2S High Signal - Bank 2 Sensor 1

2003-05 6.0L (LR4) Engine HO2S2/1 (Bank 2 Sensor 1) Connector Pinout

Click image to see an enlarged view

Fig. 2003-05 6.0L (LQ4) ENGINES

PinWire ColorCircuit No.Function
ATAN1664HO2S Low Signal - Bank 1 Sensor 1
BPPL/WHT1665HO2S High Signal - Bank 1 Sensor 1
DPNK539Ignition 1 Voltage
EBLK/WHT3113HO2S Heater Low Control - Bank 1 Sensor 1

2003-2005 6.0L (LQ4) Engine HO2S1/1 (Bank 1 Sensor 1) Connector Pinout

PinWire ColorCircuit No.Function
ATAN1667HO2S Low Signal - Bank 2 Sensor 1
BPPL1666HO2S High Signal - Bank 2 Sensor 1
DPNK539HO2S High Signal - Bank 2 Sensor 1
ELT GRN3212HO2S Heater Low Control - Bank 2 Sensor 1

2003-2005 6.0L (LQ4) Engine HO2S2/1 (Bank 2 Sensor 1) Connector Pinout

Click image to see an enlarged view

Fig.

PinWire ColorCircuit No.Function
ATAN1671HO2S Low Signal - Bank 2 Sensor 2
BPPL1670HO2S High Signal - Bank 2 Sensor 2
CRED/WHT3223HO2S Heater Low Control - Bank 2 Sensor 2
DPNK1539Ignition 1 Voltage

2003-2005 6.0L (LR4 or LQ4) Engine HO2S2/2 (Bank 2 Sensor 2) Connector Pinout

 
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