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Code
P0030
Emissions

Circuit chauffage sonde — Rangée 1 Capteur 1

Le circuit de chauffage de la sonde amont a un défaut.

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Most likely causes

  1. Fusible grillé
  2. Chauffage défectueux
  3. Câblage

Symptoms you may notice

  • Check engine light
  • Slow warm-up to closed loop

Checks to run

  1. Test heater circuit
  2. Check fuse
  3. Inspect wiring

Tools you may need

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

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