Scan tools provide vehicle data
DTCs, live values, freeze-frame data, and module information are inputs to the diagnostic case.
Evidence-based guided diagnostics
Guided automotive diagnostics that adapt to the evidence
STEP keeps the vehicle, concern, evidence, working hypotheses, completed checks, and actual results connected in one diagnostic case—then guides the next relevant step as the evidence changes.
Start from a DTC or a symptom. Record what the vehicle actually shows. Continue until the repair is supported and the original concern has been verified.
The STEP diagnostic loop
The next step stays connected to the evidence
- Case contextVehicle · concern · DTCs · history
- Working hypothesisThe question the next check must answer
- Evidence-based stepAction · conditions · expected result
- Technician resultContinue · change direction · repair · verify
Working prototype
The core diagnostic intake and case foundation are operating.
Staged early access
Initial interactive pilots are planned for late 2026, subject to readiness.
Technician controlled
Physical checks and the final diagnostic and repair decision stay with the technician.
The diagnostic method
One case. One next step. Every result can change the plan.
STEP is designed around a controlled diagnostic cycle rather than a fixed list of possible causes.
- 01
Establish the case
Capture the exact vehicle, concern, symptoms, DTCs, operating conditions, recent work, and results already obtained.
- 02
Separate evidence from assumptions
Keep customer reports, technician observations, measurements, and unresolved questions distinct.
- 03
Guide one relevant step
Present the next diagnostic check with its purpose, conditions, expected result, and required evidence.
- 04
Record and reassess
Preserve the actual result, then support, narrow, or reject the working hypothesis without erasing the earlier path.
- 05
Repair and verify
Connect the repair to its evidence and keep the case open until the repaired condition and original concern are checked.
Where STEP fits
Information is essential. A diagnostic workflow makes it usable.
STEP does not replace scan tools, test equipment, technician judgment, or repair-information subscriptions. It connects the active case around them.
Service information provides applicable details
Procedures, wiring diagrams, connector views, specifications, and test conditions remain essential.
STEP organizes the diagnostic work
One active case connects the evidence, working hypothesis, next step, actual result, repair, and verification.
Looking for a published vehicle-specific article? Browse the Diagnostic Library.
Who STEP is for
Choose the STEP path that matches your diagnostic work
Each path explains the workflow, early-access scope, and commercial direction for that audience.
Mechanics and diagnosticians
Keep a difficult case understandable from the first concern through the next check and repair verification.
STEP for MechanicsIndependent repair shops
Preserve diagnostic reasoning when intake, testing, repair approval, and verification involve more than one person.
STEP for Repair ShopsAutomotive organizations
Carry evidence across authorized teams, locations, escalations, fleets, and repeat service events within a defined pilot.
STEP for EnterpriseVehicle owners
Build a guided diagnostic path for one supported vehicle without losing the connection between symptoms, checks, results, and repair verification.
STEP for Car OwnersPricing direction
Choose the path that matches how you diagnose
STEP has separate plans for vehicle owners, individual professionals, and repair shops. Vehicle Owner access is $39 per VIN per year; Pro Mechanic is planned at $200 per month, while Repair Shop pricing is being finalized.
Vehicle owners
Vehicle Owner
$39
per VIN / year
One guided diagnostic workspace for one supported vehicle. Coverage will be confirmed before paid access begins.
View Vehicle Owner detailsMechanics and diagnosticians
Pro Mechanic
$200
/month planned
For an individual professional diagnosing multiple vehicles. Pricing and included capabilities may change before release.
View Pro Mechanic detailsIndependent repair shops
Repair Shop
Pricing
being finalized
Organization access, account limits, supported vehicles, and commercial terms will be confirmed before paid access begins.
View Repair Shop detailsAll plans remain subject to product readiness, supported vehicle coverage, final included capabilities, and approved commercial terms before paid access begins.
Staged Early Access
Request early access to STEP
STEP is a working prototype preparing for staged early access. Tell us about your role and diagnostic work, and we'll contact you when the available workflow and vehicle coverage fit.
Frequently asked questions
What to know before requesting access
Is STEP available now?
STEP is a working prototype preparing for staged early access. Initial interactive pilots are planned for late 2026, subject to product readiness. General availability has not been announced.
Does STEP diagnose the vehicle automatically?
STEP guides the diagnostic process. It can organize evidence, form and revise hypotheses, recommend the next check, interpret the recorded result, and identify when the evidence supports a repair. The technician performs or supervises the physical work and confirms the final diagnostic and repair decision.
Does STEP replace ALLDATA, Mitchell 1, or manufacturer service information?
No. STEP connects authorized, applicable service information to the active diagnostic question and preserves the result obtained when it is used.
Can a case start without a DTC?
Yes. A case can begin with the reported symptom, operating conditions, vehicle behavior, recent work, and other available evidence.
Which vehicles will STEP support?
Vehicle and system coverage is still being expanded and validated. Early-access scope will depend on the supported vehicles, systems, and diagnostic use cases at onboarding.