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🔍 OBD-II Code Lookup
Enter a DTC code (e.g. P0420, C0035, U0100) to get a plain-English explanation with likely causes, severity, and repair cost estimates.
Format: P (Powertrain) · C (Chassis) · B (Body) · U (Network) · 4-digit code
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Repair Soon
This code indicates a non-emergency issue. The vehicle can be driven, but schedule service within 1–2 weeks.
P0420
System
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Code Type
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What It Means
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Typical Repair Cost
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Estimated range. Actual cost varies by vehicle make/model, labor rate, and parts quality.
Most Likely Causes
Related Codes
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