Check engine light? Get a second opinion.
Know what your car needs before anyone quotes you a price.
I read your car's trouble codes and live sensor data, then send you a plain-English repair plan. It ranks the likely causes, marks which fixes you can do yourself, and says when it's a job for a shop.
Vacuum leak, cracked PCV hose
$15–30
Dirty MAF sensor
$10 cleaner
Weak fuel pump or clogged filter
test first
ScottCode is a mobile OBD-II diagnostic report service for individual car owners — not a scanner tool or software product. You submit your vehicle's trouble codes or symptoms, we analyze the data, and deliver a ranked report of likely causes and repair guidance remotely. It's the information you need to walk into any mechanic's shop with confidence — starting at $39, no appointment required.
Three steps from warning light to a plan
Get the scan.
Email me a scan report PDF from your own scanner, or I come to you and scan the car with a full diagnostic tool.
I diagnose.
I read the codes, freeze frame and live data together, check recalls and known service bulletins for your car, and rank the likely causes.
You get the plan.
A written report with DIY steps, parts and rough costs, and a clear line on what should go to a shop and what a fair quote looks like.
One flat price per car. No upsell.
Send me your scan
$39
- ✓You email a scan report PDF
- ✓Codes, freeze frame and live data if included
- ✓Written plan in 1–2 business days
I scan your car
$89
- ✓I come to you in the Ann Arbor area
- ✓Full scan of engine, ABS, airbag and transmission
- ✓Live-data check with the engine running
- ✓Written plan within 1 business day
Walkthrough add-on
+$40
- ✓30-minute video call to go through the plan
- ✓Or I talk you through the repair while you do it
No scanner? Many auto parts stores read codes for free, and a basic Bluetooth OBD-II scanner costs about $25–40. A report that includes live data gives a sharper diagnosis than codes alone.
I'll tell you when it's not a DIY job
Usually fine to do yourself
- ✓Sensors you can reach (O2, MAF, coolant temp)
- ✓Spark plugs, ignition coils, air filters
- ✓Loose gas caps, cracked vacuum and PCV hoses
- ✓Batteries and terminals
I'll send you to a shop for
- →Brakes, steering and suspension safety parts
- →Airbag (SRS) repairs
- →Fuel leaks or any smell of raw fuel
- →Hybrid and EV high-voltage systems
- →Open safety recalls, which dealers fix for free
FAQ
Which scan reports can I send?+
A PDF or screenshots from most scan tools and apps work, including Foxwell, Autel, Launch, BlueDriver and OBDLink. Include freeze frame and live data if your tool saves them.
Can you guarantee the fix?+
No one can guarantee a diagnosis from data alone. The report ranks causes by likelihood and gives you cheap checks to confirm before you buy parts.
I already have a shop quote. Can you review it?+
Yes. Add the quote to your request and the plan will say whether the repair matches the codes and what a fair price range looks like.
Do you work on hybrids and EVs?+
I can read and interpret their data. Anything touching the high-voltage system goes to a qualified shop.
When do I pay?+
After I've looked at your request. I'll email a payment link, and your report goes out once it's paid.
Tell me about your car
Takes about 3 minutes. I'll reply by email within one business day with payment details and next steps.