P0486Lexus UxYears: 1996 - 2026
Exhaust Sensor Heater Circuit Malfunction (Bank 2)
Reviewed by ASE Certified Technician
What does this mean?
Code P0486 indicates a problem with the cooling fan circuit or related system.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Lexus Ux models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.
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Common Causes
Faulty cooling fan relay
Failed cooling fan motor
Damaged, chafed, or broken wiring harness
Corroded or loose electrical connector
Symptoms to Watch For
- Check Engine Light is illuminated
- Engine overheating
- Cooling fan not operating
- A/C system not cooling properly