Tell us which warning light came on and what your car was doing at the time. We’ll confirm which scanner checks your vehicle supports, explain the findings and agree on the next step with you.
Diagnostic information updated 29 October 2026 · Independent multi-brand workshop
Tell us the vehicle’s year of manufacture, variant, engine or fuel type, and the exact warning message. Different versions of the eMAX 7 may have different control units and require different diagnostic access.
Read the service guide for the BYD eMAX 7 →
This is a model-specific enquiry page. The workshop can confirm which checks your model year and control system support.
CarTech Hub uses LAUNCH Scan Plus X and XTOOL Compass for scanner-assisted fault finding in Sawkuchi, Guwahati. Share your car’s make, model, year, fuel type and warning message so we can confirm the relevant scanner coverage before your visit.
Ask about a Scan Plus X check when reporting a warning light, starting problem or electronic-system concern. We first confirm communication with the relevant control unit and the diagnostic functions available for your vehicle.
The installed software, vehicle year, engine and control unit determine which checks are possible. Code reading, live-data checks and service functions are confirmed for the job before work begins.
LAUNCH official vehicle-coverage resource ↗XTOOL’s Compass information lists fault-code reading and clearing, live data, freeze-frame information, actuator tests and reports from scans before and after work. Availability depends on the vehicle and supported system.
We use the relevant information to investigate your complaint and explain the next check. XTOOL lists Compass and Compass Master configurations separately, so optional hardware and programming access are confirmed for each task.
XTOOL official Compass product information ↗We accept scanning enquiries for Indian, Japanese, Korean, European and other car brands. A brand or model listing does not confirm access to every control unit. The vehicle’s ECU, software version, licence, security access and any required accessories affect the work we can accept.
Ask separately about service resets, adaptations, coding, programming, ADAS calibration or EV high-voltage work. These need the right equipment and procedures; they are not automatically part of a basic scan. A fault code helps direct an investigation and does not by itself prove which part needs replacing.
XTOOL vehicle and function lookup ↗ Find your brand and model →
CarTech Hub first records the warning and the driving conditions in which it appeared. On supported vehicles, the technician reads the engine, ABS or airbag control module and checks whether its fault codes are current or stored. For an engine complaint, freeze-frame data and sensor readings can show the engine’s operating conditions when the fault occurred. For ABS, individual wheel-speed readings can help isolate an inconsistent signal. An airbag warning calls for a restraint-system assessment using the manufacturer’s procedures. The technician explains any further tests and discusses the repair estimate with you before you approve the work.
A fault code is one clue. The technician compares it with the symptoms you describe and the condition of the vehicle before recommending further checks.
Share the vehicle details, warning message, recent work and the conditions in which the issue appears.
We check whether the scanner supports the system you want tested and agree with you on what the initial assessment will cover.
Available codes and data guide further electrical or mechanical checks. A stored code alone does not justify replacing a part.
Discuss what is confirmed, what still needs testing and the estimate before approving further work.
Where appropriate, repeat relevant checks and review the original complaint. Clearing the warning light alone is not a completed diagnosis.
The directory has 765 model entries across 36 brands, including earlier generations and variants. Choose your car and tell us its model year, fuel type, variant and warning message. The workshop will confirm which control units it can check and which repairs it can undertake.
5 matching model entries · Showing 1–5 · Browse BYD diagnostics
Coverage depends on the model year, control unit, software and access requirements. Tell us the symptoms or warning message so we can check whether the relevant function is supported before you visit.
A code records a condition detected by the car. A technician may need to inspect wiring, power supply, mechanical components or operating conditions before recommending a replacement.
Programming and calibration are separate jobs. Before booking, ask what hardware and software access the work requires, whether a trained technician is available and what the work would cost for your vehicle.
Bring your vehicle details, a description of the symptoms, relevant service records and any earlier scan report. Tell us about recent battery work and whether anyone cleared the fault codes.
The motor produces motion, and power electronics such as the inverter control the electrical power associated with propulsion. A reduction drive transfers the motion onward. The DC-DC function supports the lower-voltage electrical supply and the onboard charger is involved in AC charging. These roles explain why cabin electrical, charging and driving concerns can need different investigations. They do not mean CarTech Hub opens or repairs these assemblies, or that every BYD model has identical component layout and replacement requirements.
An eMAX 7 may behave differently with passengers and luggage than when nearly empty. Report when a knock, vibration or steering concern occurs and whether it followed an impact. Check the actual tyre specification, condition and pressure requirements from the vehicle guidance. A matching rim appearance is insufficient to establish the correct load rating or compatibility. Uneven wear can require more than a replacement tyre if suspension or steering damage is present.
For visibility, assess wipers, washer function, lamps and glass condition. Cabin filters support airflow and can influence demisting comfort, particularly during wet weather. Explain weak airflow separately from inadequate cooling, including which rows are affected. Electric AC compressors and associated thermal systems may require high-voltage procedures, so CarTech Hub must confirm any supported local scope or coordinate qualified referral. A routine cabin-filter enquiry is not an offer of battery or electric-compressor repair.
The low-voltage battery supplies controls and convenience equipment, with its exact type and replacement procedure needing verification. A ready-state complaint, discharged auxiliary system or electrical warning deserves appropriate supported investigation. For parts enquiries, send the VIN, photographs and existing component information. Availability, compatibility, price and delivery time will be confirmed after identification and supplier checks. The workshop should distinguish a supported replacement from work requiring specialist electronics, calibration or manufacturer service support.
For a charging problem, retain the displayed message, the charging location and whether the session used AC or DC. One interrupted session does not by itself establish that a vehicle component has failed. Do not probe connector pins or work on damaged charging equipment. The appropriate charge rating, connector procedure and operating guidance must come from the actual vehicle documents and qualified support.
Deductibles, depreciation, uncovered consumables, uninsured accessories and unrelated wear may remain payable. Check any battery or EV-related add-on for its own events, conditions and limits; not every electrical, charging or water-related concern is automatically covered. Before collection, review the approved scope, relevant specialist findings, affected doors and tailgate, glass, lamps and remaining restrictions. Cosmetic completion alone should not be treated as permission to resume charging or passenger journeys if unresolved safety concerns remain.