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P0731 — Gear 1 Incorrect Ratio

1st gear ratio doesn't match expected value. Trans is slipping in 1st gear.

Severity: HighRepair: $100-$4,000+Difficulty: Advanced

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Common symptoms of P0731

Common causes of P0731

Repair cost & difficulty

Typical cost to fix P0731: $100-$4,000+ · Difficulty: Advanced

Pro tip: Check fluid level. If dark/burnt, internal damage likely.

Vehicles commonly affected

All makes

Related trouble codes

P0730P0732P0733

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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.