Customise
Make your Ford feel more yours.
Auto headlights activation threshold, daytime running lights and more.
- Show digital speed in dashboard
- Auto start/stop: remember last state
- Daytime running lights (DRL)
Ford OBD2 Scanner & Diagnostic App
Carista turns your phone into an OBD2 scanner for Ford: full-system Ford diagnostic, Ford-specific fault codes, Ford battery registration and customization across 35 Ford model lines.
About
Carista is a Bluetooth OBD2 scanner and phone app that gives Ford owners full-system Ford diagnostic, live engine, transmission and turbo data, service tools like Ford battery registration (BMS reset) and emissions tests, and infotainment customizations like start screen logo and user theme, across 35 Ford model lines. You get all of it without a trip to the dealership, and without a laptop-based tool like FORScan.
What can you do with Carista & your Ford
Carista reads and clears Ford fault codes, streams the same live data a technician sees, including turbo and DPF, and handles the Ford diagnostic checks and settings a dealer visit would otherwise be needed for.
Diagnose
Know what the warning light is saying.
Read and clear supported Ford fault codes, then make sense of the data before booking a garage.
- Read & clear engine and chassis fault codes
- Covers common Ford codes like P0300, P0171, P0420, P0442, P0401, P0128, P0299 and P0101.
- Clears the check-engine light once the underlying code is resolved
Service
Take care of the jobs Ford lets you do.
Run supported tools from your phone and arrive at the garage knowing more than you did before.
- Ford battery registration (BMS reset) after a battery replacement
- DPF regeneration: force a diesel particulate filter regen without a dealer visit
- Service indicator reset & used car checks
Feature availability varies by vehicle model, year and equipment.
Top 5 Ford Features
COMPATIBILITY
35+ Ford models.
Find yours.
Carista supports a wide range of Ford models and generations. Select your model to see exactly which features are available.
Fiesta
F-150
Ranger
Puma
Mondeo
Transit
Kuga
Mustang
12 of the most common Ford codes
These are standard SAE-defined diagnostic trouble codes that turn up most often across Carista's Ford lineup – the same codes a dealer's scan tool would show.
U3003-16
Battery voltage dropped too low while a module was running, usually a weak or old battery.
P0420
The catalytic converter isn’t cleaning the exhaust as well as it should, usually because it’s worn out
P2463
The diesel particulate filter is clogged with soot and needs a regeneration (cleaning cycle).
U0140
A module lost contact with the body control module, which runs lights, locks and wipers.
P0101
The sensor that measures air coming into the engine is reading implausible values, usually because it’s dirty or failing.
U0415
A module received invalid data from the ABS (brake) module, often after a wheel-speed sensor fault.
P0300
The engine is misfiring on several cylinders at random, often from worn spark plugs, bad ignition coils or a vacuum leak.
P0171
The engine is getting too much air for the fuel, usually because of a vacuum leak or a dirty air intake sensor.
P0420
The catalytic converter isn’t cleaning the exhaust as well as it should, usually because it’s worn out.
P0442
There’s a small leak in the fuel vapour system, often a worn fuel cap seal or a cracked hose.
P0128
The engine is taking too long to warm up, almost always because the thermostat is stuck open.
P0299
The turbo isn’t producing enough boost, typically from a boost leak or a sticking wastegate.
Why many
drivers choose Carista
Free App Diagnostics
- Basic diagnostics, no subscription
- Connect and pick a function
- No complicated licensing structure
Carista
Pro Access
- Advanced diagnostics and live data
- Customizations and service procedures
- Monthly, annual or two-year plans
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FAQ
What is the best OBD2 scanner for a Ford?
For most Ford owners, a Bluetooth OBD2 scanner paired with an app like Carista beats a standalone code reader: it reads and clears fault codes, streams live engine, transmission and turbo data, runs service tools like battery registration and emissions tests, and adds customization options a basic reader can't touch.
Does Carista work with all Ford models?
Carista supports 35 Ford model lines, including the F-150, Super Duty, Mustang, Bronco, Escape, Explorer, Focus, Fusion, Ranger and Transit, across both US and European lineups. Exact feature coverage is confirmed in-app by your vehicle's VIN rather than a fixed chart, since it varies by generation and region.
Can Carista do a Ford battery registration or BMS reset?
Battery registration is one of Carista's service tools for Ford. Many Ford owners search for it as a battery monitoring system (BMS) reset: after you fit a new battery, registering it lets the car's power management adjust charging for the new battery, a step garages and dealers commonly charge extra for.
Can I use my phone to diagnose my Ford and change its settings?
Yes. Carista EVO connects to the Carista App on iOS or Android, allowing diagnostics and supported customizations. Available settings depend on your Ford’s model and generation.
How much does a Ford dealership charge for a diagnostic, and how much does Carista cost?
Ford dealerships typically charge a flat diagnostic fee before any repair is even quoted, often in the $100–$200 range, plus separate charges for services like battery registration. Carista's scanner works on any Ford you own, with a free plan for basic diagnostics and PRO for full coding and service tools. Check pricing: https://carista.com/collections/all