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P0545 — Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 1)

Exhaust gas temperature sensor reading too low.

Severity: MediumRepair: $50-$300Difficulty: Medium

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Common symptoms of P0545

Common causes of P0545

Repair cost & difficulty

Typical cost to fix P0545: $50-$300 · Difficulty: Medium

Pro tip: EGT sensors are critical for diesel DPF operation. Faulty sensor can prevent regeneration.

Vehicles commonly affected

Diesel vehicles, some turbo gasoline

Related trouble codes

See the full code list.

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.