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Code
P0031
Emissions

Chauffage sonde bas — Rangée 1 Capteur 1

Le circuit de chauffage de la sonde lit trop bas.

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Most likely causes

  1. Câblage court-circuité
  2. Sonde défectueuse

Symptoms you may notice

  • Check engine light

Checks to run

  1. Measure heater resistance
  2. Check for shorts
  3. Test the driver

Tools you may need

Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

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