O2 Sensor Bank 2 Sensor 2 Circuit Wiring Diagram (2001-2004 3.0L V6 Ford Escape)

  • By: Abraham Torres-Arredondo
  • Created: 07 October 2025
  • Updated: 07 October 2025
  • Articl Id: 917
O2 Sensor Bank 2 Sensor 2 Circuit Wiring Diagram (2001, 2002, 2003, 2004 3.0L V6 Ford Escape)

APPLIES TO: This HO2S 22 sensor circuit wiring diagram applies to the following vehicles:

  • 3.0L V6 Ford Escape: 2001, 2002, 2003, 2004.

This wiring diagram includes the following circuits:

  • Fuse 5: Located in the Battery Junction Box, front left corner of engine compartment.

  • Heated Oxygen Sensor Bank 2 Sensor 2 (HO2S 22): Located after the catalytic converter of the exhaust manifold facing the radiator.

    Monitors the efficiency and performance of the catalytic converter that scrubs the exhaust gas of cylinders 4, 5, and 6 (Bank 2).

HO2S Bank 2 Sensor 2 Connector Pinout

HO2S Bank 2 Sensor 2 Connector Pinout. O2 Sensor Bank 2 Sensor 2 Circuit Wiring Diagram (2001, 2002, 2003, 2004 3.0L V6 Ford Escape)
Pin Wire Description
1 Light blue with orange stripe (LT BLU/ORG) VPWR –Vehicle Power (12 Volts)
2 Tan with yellow stripe (TAN/YEL) HO2S 22 HEATER –PCM Supplied Ground (heater activation signal)
3 Orange (ORG) SIG RTN –O2 Sensor Signal Ground
4 Gray with light blue stripe (GRY/LT BLU) HO2S 22 SIG –O2 Sensor Signal

P0161 DIAGNOSTIC TESTS: Checking the sensor's heater element (to see if its fried) can easily be done with a multimeter. This tutorial will show you how:

Related O2 Sensor Circuit Wiring Diagrams

More 3.0L V6 Ford Escape Wiring Diagrams And Tutorials

You can find a complete list of wiring diagrams and diagnostic test tutorials here:

Here's a sample of the tutorials you'll find there:

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