Mobile diagnostics
Professional testing at your home, workplace, or vehicle location—without the tow.
Troy, MI & Metro Detroit mobile auto service
Advanced automotive diagnostics and light mobile repair brought to your driveway, workplace, or roadside location throughout Troy, Oakland County, and Macomb County.
WE COME TO YOU →
What we do
Modern vehicles need more than a code reader. We use a disciplined test process to identify the actual fault before parts are recommended.
Professional testing at your home, workplace, or vehicle location—without the tow.
In-depth testing for wiring faults, modules, parasitic draws, CAN/LIN communication, and hard-to-find circuit problems.
Pinpoint testing for no-crank and crank-no-start conditions involving fuel, ignition, security, or power.
Live-data analysis and circuit testing that goes beyond simply reading a trouble code.
Battery, starter, alternator, charging-circuit, and parasitic-draw testing.
Common repairs, brakes, and maintenance completed on-site when the job is suitable for mobile service.
Diagnosis for misfires, rough running, stalling, hesitation, and poor performance.
Convenient rideshare vehicle inspections for drivers throughout Metro Detroit.
On-site vehicle evaluation before you buy, including a visual inspection, road test when permitted, diagnostic scan, and a digital report with photo or short video evidence.
Minor bumper, trim, surface-preparation, and cosmetic repairs when the job is suitable for mobile service.
The Truth standard
We verify the complaint, test the system, and follow the evidence to the fault.
You get a plain-language explanation of what failed, why it failed, and what should happen next.
If the repair makes sense as a mobile job, we quote it. If it needs a shop, we tell you directly.
Real work. Real evidence.
These are actual project and inspection photos—not stock images. We document visible conditions, explain the finding, and help you understand the next step.

Cooling-system and front-end access during an on-site repair.

Careful disassembly to reach the confirmed fault.

Documenting component condition before recommendations are made.

Close-up photo evidence helps customers see what the inspection found.

Hard-to-see concerns photographed at the vehicle.

Masked preparation for a controlled minor cosmetic repair.

Surface correction in progress before final refinishing.

Careful preparation of damaged paint and surface defects.
Photos show actual diagnostic findings and repairs in progress. Light body work is limited to suitable minor cosmetic, bumper, trim, and surface-repair jobs—not structural collision repair. Availability depends on the vehicle, location, weather, and job scope.
Straightforward pricing
The $99 fee covers coming to your location and is applied to approved repairs. You will be told before additional diagnostic time or repair work begins.
We come to you. The fee is applied to approved repairs.
Inspection for one rideshare platform with the applicable paperwork.
Inspections and applicable paperwork for both rideshare platforms.
How it works
Send the vehicle details, location, symptoms, and preferred appointment time.
A technician comes to the vehicle and performs focused diagnostic testing.
Receive the findings, recommended next step, and a repair quote when applicable.
Local service area
Based in Troy, Truth Mobile Diagnostics brings professional vehicle testing to customers throughout Oakland and Macomb counties. Travel outside the core area may affect availability or pricing.
Book mobile check-engine diagnosis, no-start testing, automotive electrical diagnosis, battery and charging tests, drivability testing, light repair, a pre-purchase vehicle inspection, or an Uber and Lyft inspection at your home, workplace, dealership, or vehicle location.
Check appointment availability ↘Local service pages
Detailed service information for drivers searching in Troy and across Metro Detroit.
Customer reviews
Honest customer reviews help local drivers find a mechanic who tests before recommending parts.
Schedule service
Request an appointment without paying. After the shop approves your requested time, you’ll receive the secure $99 service-fee link. The appointment is confirmed after payment is verified.
service@truthmobilediagnostics.comServing Troy and Metro DetroitCommon questions
Yes. Truth Mobile Diagnostics provides on-site service throughout Troy and the Metro Detroit area.
When the repair is appropriate for mobile service, yes. Larger jobs may be referred to a properly equipped shop.
The diagnostic fee covers testing and a clear explanation of the confirmed problem. If you approve the recommended repair, the diagnostic fee is applied toward that repair. Repair pricing is provided separately before work begins.
Most domestic, Asian, and European passenger vehicles and light trucks. Include the year, make, model, and engine when requesting service.
A mobile pre-purchase inspection includes a visual vehicle evaluation, diagnostic scan, road test when permitted, and a clear summary of the findings. It helps you make an informed purchase decision but is not a guarantee against every hidden or future problem.
Yes. Digital inspections can include photos and short videos of findings. Inspection videos are limited to 30 seconds each and remain attached to the work order for customer review.