650-242-5440
For shops…
We help GMs by taking care of any Tesla calibration, alert, or lingering issue after a repair. We work remotely or show up on site so your guys can focus on what they do best.
and drivers…
If you are in the market for a used Tesla, let us do a deep dive check first. Why worry if the battery is still good? We can investigate that and more! We help current owners as well.
We’re a team of EV professionals, adept at diagnosing and repairing any Tesla issues. We help customers looking at used vehicles, as well as garages and body shops with anything Tesla related.
Find and Solve any Tesla Alerts
Ω Advanced Diagnostics
Ω Advanced Diagnostics
Offerings
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Our highly skilled master technician provides expert remote assistance, guiding you through the necessary diagnostic procedures to effectively resolve any repair. We possess comprehensive expertise in addressing all alerts, including complex high-voltage system repairs.
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Our firm provides on-site technician deployment for direct diagnosis and resolution of alerts or other vehicle issues. No need for a trip to the OEM service center! We are faster, have a higher commitment to quality, and do it for a lower price.
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Are you buying a used Tesla or Rivian? Wish you could have someone inspect the internal components like a technician might give you a 170 point inspection for a used gas car?
We’re here to help.
We can access the car you are eyeing remotely and give you a full rundown of it’s high and low voltage health before you buy.
Dealers! Want to get ahead of the curve? Have us deep dive your vehicle and send you a report that you can show to customers for external validation on the health of the car you are selling!
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We provide credible, trial-ready expert testimony and forensic work order analysis to give your litigation a competitive edge. Backed by years of hands-on experience in automotive technical diagnostics and dealership service-writing protocols, we dissect complex repair histories to help you build undeniable cases.
Trusted Experience
A Tesla Certified Master Technician is the highest level of automotive technician at Tesla.
These technicians are the "fixers" who handle the most complex electrical diagnostics, mentor junior staff, and communicate directly with Tesla engineering teams.
Our technical lead technician is a certified Master Tech and has experience handling regional escalations for the toughest issues. Rest assured we can handle any diagnosis or problem.
We are not affiliated with Tesla, Inc.
$100
EV Pre-Purchase Inspection
Get a PPI for any Tesla model. Find issues with all major systems in the vehicle. Please see product in cart for a full description of the systems checked.
Exclusive to cat1diag. Most shops just read the error codes. We go further. We perform a manual extraction of your Tesla’s internal logs—data usually only visible to highly trained Tesla engineers and technicians—to reveal the true health of your car.
Cell-Level Balance: We check individual battery bricks to ensure no weak cells are hiding in the pack.
Expert Review: Your data is personally analyzed by a Master Technician, not just an automated script.
Buying used? Don't fly blind. Before you hand over the cash, let us check the car’s digital nervous system. This remote-capable analysis checks the vehicle's onboard computers for "silent" error codes that sellers might not even know about.
We provide a deep-dive analysis of the following subsystems:
High Voltage & Powertrain
BMS & Storage: Battery Bricks, Modules, and Voltage Sensing.
Safety: Pyro Disconnect, HV Isolation, and Interlock Loop (HVIL).
Charging: Charge Port, On-board Charger (OBC), and Fast/DC Contactors.
Thermal: Cooling and heating management systems.
Chassis & Safety
Dynamics: Suspension, Steering, Braking, Traction, and TPMS.
Restraints: Airbags, Seatbelts, RCM, and Classification Sensors.
Body & Access
Hardware: Latches, Regulators, Liftgate, and Door Handles.
Lighting: Headlights, Fog, Turn, Tail, and Interior Illumination.
Security: Key fobs and Accessibility modules.
Before we dive into the diagnostics, we need to clear the access with the vehicle's current owner. This ensures we have the proper permissions to pull the history logs.
Please ask the registered owner for their email address and let them know we’ll be sending a request for access. As soon as they accept, we can get to work uncovering the vehicle's history for you.
NEW!
$165
EV PPI 3-pack
Recommended: Includes 3 Pre-Purchase Inspections for any model Tesla. This is a great option if you are looking at a few options and want to check the health of each! Note: 1 year expiration
Shopping around? Don't pay full price for every car you look at. Get 3 credits for our Digital Audit inspection to use on any VIN you find.
Valid for 6 months.
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