DiagnosticaOnlineTiktok Courses

Automotive training library

Tiktok Courses

The complete 12-module diagnostic curriculum is here as the original PowerPoint teaching material. Open a module when you need the lesson deck, or download it for offline study and TikTok lesson planning.

Source decks are in Romanian. Use the diagnostic AI for questions in your preferred language.
12modules
96recommended hours
295slides
5lessons per module
Module 01Romanian

Professional diagnostic process

Method, evidence, and repair verification

Course overview plus the first module: turn a symptom into a repeatable test plan, prove the cause, and verify the repair.

20 slidesCourse map + 8 hours
Module 02Romanian

Modern vehicle architecture

Systems, wiring, and control dependencies

Trace a fault through control units, power supplies, grounds, 5 V references, gateways, and the relationship between command and result.

25 slides8 hours
Module 03Romanian

OBD and the diagnostic tester

Scanning, DTC evidence, and active tests

Scan completely, preserve freeze-frame and readiness evidence, interpret DTC status, and choose the tester function that answers the question.

25 slides8 hours
Module 04Romanian

Live data interpretation

PIDs, correlations, and plausibility

Select useful PIDs, check plausibility at known conditions, and compare requested versus actual values without mistaking calculated data for a measurement.

25 slides8 hours
Module 05Romanian

Sensors and actuators

Inputs, outputs, and circuit proof

Separate a failed component from a supply, wiring, connector, control, or mechanical fault by testing the whole circuit.

25 slides8 hours
Module 06Romanian

Petrol engine diagnostics

Starting, misfire, and mixture faults

Work through no-start, misfire, and mixture symptoms by testing air, fuel, ignition, compression, timing, and control together.

25 slides8 hours
Module 07Romanian

Diesel Common Rail

Rail pressure, injection, and air path

Diagnose hard starting and loss of power by correlating air handling, rail pressure, injection control, and the mechanical system.

25 slides8 hours
Module 08Romanian

Emissions and after-treatment

DPF, EGR, SCR, and AdBlue

Approach DPF, EGR, SCR, and AdBlue faults with evidence before attempting regeneration or replacing an expensive component.

25 slides8 hours
Module 09Romanian

Automotive oscilloscope

Waveforms and time-based evidence

Capture safe, interpretable waveforms for sensors, actuators, synchronization, and mechanical checks.

25 slides8 hours
Module 10Romanian

CAN, LIN, and CAN FD

Network diagnosis and physical layer tests

Localize communication faults using network topology, module power and ground checks, termination, and physical measurements.

25 slides8 hours
Module 11Romanian

Vehicle non-engine systems

Brakes, steering, SRS, body, and HVAC

Apply the same diagnostic method to braking, steering, body systems, SRS, HVAC, and other vehicle systems with appropriate safety limits.

25 slides8 hours
Module 12Romanian

Advanced diagnosis and practical exam

Unknown faults and complete case reports

Solve an unknown fault from symptom to verified repair, including incomplete data, intermittent faults, no-communication, and software decisions.

25 slides8 hours

Study notes

Use the decks as a training companion, not a substitute for vehicle-specific service data.

The presentations teach a diagnostic method and safe test order. Pinouts, limits, repair procedures, and software decisions still need to be checked against the exact vehicle and current manufacturer information. Stop any test that could create a safety risk and use qualified local help for brakes, steering, SRS, high-voltage systems, fuel leaks, or a vehicle that is unsafe to operate.