1998-2001 O2 Sensor #1 Connector Pin-Out

Front View Of Engine Wiring Harness H02S 11. Oxygen Sensor Circuit Diagram (1998, 1999, 2000, 2001 2.5L Ford Ranger And Mazda B2500)

The photo above is of the HO2S 11 engine wiring harness connector. This O2 sensor connector has round female terminals.

Pin Wire Color Description
1 LT BLU/ORG Heater 12 Volts
2 RED/WHT Heater Ground
3 ORG Sensor Ground
4 GRY/LT BLU O2 Signal

1998-2001 O2 Sensor #2 Connector Pin-Out

Front View Of Engine Wiring Harness H02S 12. Oxygen Sensor Circuit Diagram (1998, 1999, 2000, 2001 2.5L Ford Ranger And Mazda B2500)

The photo above is of the HO2S 12 engine wiring harness connector. This O2 sensor connector has round female terminals.

Pin Wire Color Description
1 LT BLU/ORG Heater 12 Volts
2 WHT/BLK Heater Ground
3 ORG Sensor Ground
4 RED/LT GRN O2 Signal

More 2.5L Ford Ranger Tutorials

You can find a complete list of tutorials here: Ford 2.5L Index Of Articles.

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

  1. Ignition System Circuit Diagram (1998-2001 2.5L Ford Ranger).
  2. How To Test The TPS (1998-2001 2.5L Ford Ranger).
  3. How To Test The Blower Resistor (1998-2000 2.5L Ford Ranger).
  4. How To Test The Blower Motor Switch (1998-2000 2.5L Ford Ranger).
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Ford Vehicles:

  • Ranger 2.5L
    • 1998,
      1999,
      2000,
      2001

Mazda Vehicles:

  • B2500 2.5L
    • 1998,
      1999,
      2000,
      2001