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P0343 — Camshaft Position Sensor A Circuit High (Bank 1)

CMP sensor signal voltage too high on bank 1.

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

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Common symptoms of P0343

Common causes of P0343

Repair cost & difficulty

Typical cost to fix P0343: $50-$300 · Difficulty: Medium

Pro tip: Check for wiring shorts.

Vehicles commonly affected

All makes

Related trouble codes

P0340P0341P0342

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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.