Vehicle context
VIN, configuration, mileage and available case information help refine the reading.
Feature
DTC fault code analysis
Diagolia helps interpret fault codes without isolating them from vehicle context, symptoms and checks already performed.
Key point
Reasoning support, not an automatic decision
DTC analysis in Diagolia places the code back into context, cross-checks available elements and presents hypotheses for the technician to confirm.
DTC
A fault code gives direction, not a repair decision
A DTC can point to a system, value or inconsistency. It does not always identify the part to replace.
Diagolia treats the code as one signal among others. It must be compared with symptoms, the vehicle and available observations.
- avoid concluding too quickly from one code;
- identify the affected system and plausible causes;
- prepare checks that can confirm or rule out a hypothesis.
Context
Read the code with symptoms and vehicle information
The same DTC can lead to different checks depending on the engine, mileage, conditions of occurrence, previous interventions or customer complaint.
Diagolia helps connect the code with those elements so the analysis remains tied to the real case.
Observed symptoms
Warning lights, messages, loss of power, noises or intermittent behavior are included in the reasoning.
Workshop checks
Measurements and observations already performed are used to support or weaken a hypothesis.
Ranking
Prioritize causes without presenting certainty
Diagolia can rank possible causes according to the consistency between the code, symptoms and sources. This ranking helps decide what to check next.
A suggested cause remains a hypothesis. It must be validated by the technician with the appropriate method.
- 01
Gather signals
DTCs, symptoms, values and observations are grouped into one case.
- 02
Compare sources
Technical information and similar cases are used to assess each hypothesis.
- 03
Prepare checks
The technician keeps only the checks that can reduce uncertainty on the vehicle.
FAQ
Frequently asked questions
Can a DTC identify a part to replace? +
Not by itself. A DTC is a signal. The actual cause must be confirmed with symptoms, context and checks.
Does Diagolia support multiple DTCs? +
Yes. Several codes can be analyzed together when they are part of the same diagnostic case.
Does the technician still need to perform checks? +
Yes. Diagolia helps prioritize hypotheses, but checks on the vehicle remain necessary before repair.
Diagolia
Structure your next diagnostics with Diagolia
Diagolia helps organize the case information, cross-check available sources and prepare useful checks before intervention.