A Honda diagnostic fee costs $120 to $180 in 2026
Honda dealers charge about one hour of labor to diagnose a problem. Owners report fees around $129 out of warranty. Under the 3-year bumper-to-bumper warranty a covered fault should cost nothing to diagnose.
What you get for the fee
| Typical fee | $120 to $180 at Honda dealers in 2026. RepairPal puts Accord and Civic diagnosis at $122 to $179. |
|---|---|
| Under warranty | Covered faults are diagnosed free. You may be asked to sign that you'll pay the fee if the cause turns out not to be covered. |
| Certified pre-owned | CPO warranties are narrower than new-car warranties. Dealers often ask CPO owners to agree to the fee up front for that reason. |
| Credited if you repair? | Sometimes. Ask the service advisor. |
| Independent alternative | An independent shop diagnoses a Honda for $50 to $150. Hondas are common, so most shops know them well. |
| Multiple complaints | Some Honda dealers quote a fee per issue. Ask before you list three problems. |
Why the fee exists
Honda dealers use the factory i-HDS scan tool and Honda service bulletins, which matters for software, recalls and a handful of model-specific faults. For everyday check engine lights, brakes and batteries, the same answer costs less at an independent.
What will my diagnostic cost?
Pick the kind of shop, your state's cost level and how tricky the problem is. The estimate updates as you change them.
Estimates from published 2026 shop rates. Ask the shop for its exact fee before you book.
Common questions
How much does Honda charge for a diagnostic?
$120 to $180 at most dealers in 2026. Owners commonly report about $129.
Does Honda charge a diagnostic fee under warranty?
Not for a covered fault. If the cause is not covered, you pay the fee.
Why did the Honda dealer ask me to agree to a fee on a CPO car?
CPO coverage is narrower. The dealer wants agreement in case the fault is outside it.