How Much Does Car Diagnostic Test Cost in Mississippi?
Mississippi pricing is below the national average. Updated for 2026.
Car Diagnostic Test Pricing in Mississippi
In Mississippi, the average cost for car diagnostic test is $78 per diagnostic, which is 22% lower than the national average of $100. Most Mississippi residents pay between $39 and $156.
Mississippi benefits from a lower cost of living than many states, resulting in more affordable pricing for car diagnostic test. This makes it one of the more budget-friendly states for this service.
A car diagnostic test uses a computer scanner to read trouble codes from your vehicle's onboard computer (OBD-II). It helps identify why your check engine light is on and what systems or components need attention.
Mississippi vs National Average
What Affects Car Diagnostic Test Cost in Mississippi?
Level
Basic code read: $0-$50 (free at parts stores). Standard diagnostic: $50-$120. Advanced/dealer diagnostic: $100-$250
Shop Type
Parts store (free code read): $0. Independent: $50-$100. Dealership: $100-$200. Specialist shop: $75-$150
Complexity
Simple code (O2 sensor, gas cap): $50-$75. Electrical/intermittent issue: $100-$200. Multiple system diagnosis: $150-$250
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Top-Rated Car Diagnostic Test Pros in Mississippi
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💡 Tips to Save on Car Diagnostic Test in Mississippi
- 1.AutoZone, O'Reilly, and Advance Auto Parts read check engine codes for free
- 2.Buy your own OBD-II scanner ($20-$50) for basic code reading
- 3.Many shops waive the diagnostic fee if you have the repair done there
- 4.Independent shops charge $50-$100 vs $100-$200 at dealerships for the same scan
📈 Car Diagnostic Test in Mississippi Cost Trends (2020–2024)
Prices have increased +18.2% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $66 | — |
| 2021 | $69 | +4.5% |
| 2022 | $74 | +7.2% |
| 2023 | $76 | +2.7% |
| 2024 | $78 | +2.6% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Car Diagnostic Test in Mississippi
Recent Reports
Frequently Asked Questions
Is a check engine light urgent?
A steady check engine light means there's an issue that needs attention but isn't immediately dangerous. A flashing check engine light indicates a serious problem (usually engine misfire) — reduce speed and get it diagnosed immediately to prevent catalytic converter damage.
What's the difference between a code read and a diagnostic?
A code read ($0-$50) tells you WHAT code is stored (e.g., P0420). A proper diagnostic ($50-$200) tells you WHY — the technician tests specific components to identify the root cause. A code is a starting point, not a diagnosis.
Car Diagnostic Test Cost in Other States
Related Cost Guides for Mississippi
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