1. Identify the wires:
- White wires: These are the O2 sensor heater wires.
- Black/gray wire: This is the O2 sensor ground wire.
- Remaining white wire: This is the O2 sensor signal wire.
2. Connect the wires:
- White wires: Connect these to the corresponding pins on the square plug labeled "heater" or "HTR."
- Black/gray wire: Connect this to the pin on the square plug labeled "ground" or "GND."
- Remaining white wire: Connect this to the pin on the square plug labeled "signal" or "SIG."
Additional notes:
- Double-check the wiring: Before starting the engine, make sure the wires are securely connected and that there are no loose ends.
- Consult a wiring diagram: If you're unsure about the wiring, consult a wiring diagram for your specific Jeep Wrangler.