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P0432 — Main Catalyst Efficiency Below Threshold (Bank 2)

Bank 2 main catalyst not meeting efficiency requirements.

Severity: MediumRepair: $100-$2,500Difficulty: Medium

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Common symptoms of P0432

Common causes of P0432

Repair cost & difficulty

Typical cost to fix P0432: $100-$2,500 · Difficulty: Medium

Pro tip: Same diagnosis as P0430.

Vehicles commonly affected

V6/V8 engines

Related trouble codes

P0420P0430P0431

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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.