Diagnostics, programming, coding, adaptation and calibration for the electronic modules in modern cars — from the engine ECM and transmission TCM to body, safety, ADAS, infotainment, security and EV control modules.
Tell us your vehicle and the module involved. We confirm what the job needs and whether it is supported for your car before any work is booked.
A modern car can carry anywhere from a dozen to more than a hundred electronic control modules, all talking to each other over the vehicle network. When one of them is replaced, updated or misconfigured, the rest of the car often notices — with warning lights, disabled features or a vehicle that will not start.
MechOnGo Automobiles works on these modules: reading and interpreting faults, loading the correct software, coding modules to match the vehicle, re-learning adaptation values and calibrating sensors. Our workshop and doorstep teams are based in Delhi NCR, and we take ECU programming and coding enquiries from car owners and workshops across India.
Programming, coding and configuration availability depends on the vehicle manufacturer, model, model year, module type and applicable security or software requirements. Final availability is confirmed after vehicle and module identification.
Programming (or flashing) writes software into a control unit's memory. It is needed when a module is replaced, when the manufacturer releases a software update, or when a module's software is corrupted.
Coding changes settings inside software that is already installed, so the module matches the vehicle's variant and equipment. A replacement module frequently needs programming first and coding after.
The modules below are grouped by system. For each, we describe what it does and the kinds of work that may apply — whether a particular procedure is available depends on your vehicle.
Engine & Powertrain
Powertrain modules control how the engine and gearbox run. They hold the most critical software in the car, so replacement and updates must match the exact vehicle.
The ECM (commonly called the ECU) manages fuel injection, ignition, air intake, emissions systems and engine protection using data from dozens of sensors. It is also usually part of the immobilizer chain.
Work that may apply
The TCM controls gear selection, shift timing and clutch or torque-converter operation in automatic, CVT, DCT and AMT gearboxes. Shift quality depends heavily on its learned adaptation values.
Work that may apply
Electric and hybrid powertrain modules — VCU, BMS, inverter, on-board charger and DC/DC converter — are covered under EV & Hybrid below.
Body & Electrical
Body modules run the car's comfort and convenience functions. Most of the work here is coding and configuration — telling a module which equipment the vehicle actually has.
The BCM controls central locking, interior and exterior lighting, wipers, windows, horn and many power-management functions. Some vehicles split these across a front BCM and a rear body module (BCM2).
Work that may apply
Door modules control power windows, mirrors, door locks and switch panels, and communicate with the BCM over the vehicle network.
Work that may apply
Controls powered seat movement, memory positions and, depending on the car, heating, ventilation and massage functions.
Work that may apply
Manages the air-conditioning compressor request, blend and mode flaps, blower speed and temperature sensors.
Work that may apply
Headlamp levelling, adaptive/matrix headlamp and LED driver modules control beam position and pattern. Beam aim must be correct after replacement.
Work that may apply
The gateway routes messages between the car's separate networks (powertrain, body, chassis, infotainment, diagnostics). On many modern cars it also controls diagnostic security access.
Work that may apply
Safety & Chassis
Safety and chassis modules affect braking, steering and occupant protection. After repairs, these systems often need calibration or initialisation before they work correctly.
The ABS/ESC module prevents wheel lock-up and controls stability intervention using wheel-speed, yaw-rate and steering-angle inputs.
Work that may apply
The airbag module monitors crash sensors and deploys airbags and seat-belt pretensioners. After a deployment it typically stores crash data.
Work that may apply
Airbag work follows the manufacturer's repair procedures; whether crash-data handling or reuse of a module is possible depends on the manufacturer and applicable rules.
The EPS module controls steering assist and, on many cars, supports lane-keeping and park-assist steering.
Work that may apply
Direct TPMS uses wheel sensors that transmit pressure data; indirect TPMS estimates pressure from wheel-speed data.
Work that may apply
Controls parking sensors and, on some vehicles, reversing camera overlays and automated parking steering.
Work that may apply
ADAS — Driver Assistance
Advanced driver-assistance systems rely on cameras and radar that must be aimed precisely. Calibration requirements are set by each manufacturer and vary by vehicle and by the repair that was done.
Combines camera and radar data to run driver-assistance functions. On some vehicles this is a separate module; on others the logic sits inside the camera or radar unit.
Work that may apply
The windscreen-mounted front camera supports lane-keeping, traffic-sign recognition, high-beam assist and, on many cars, emergency braking.
Work that may apply
Front and corner radar sensors measure distance and speed of surrounding vehicles for cruise control, blind-spot and collision-warning functions.
Work that may apply
Adaptive cruise keeps a set gap to the vehicle ahead using radar and/or camera input.
Work that may apply
Lane-departure warning, lane-keeping assist, forward-collision warning and autonomous emergency braking (AEB) depend on correctly calibrated cameras and radar.
Work that may apply
Infotainment & Connectivity
These modules handle what the driver sees and the car's connection to the outside world. Software versions and configuration must match between them.
Displays speed, warnings and vehicle information, and on many cars stores service data and takes part in the immobilizer system.
Work that may apply
The head unit runs audio, navigation, phone connectivity and vehicle settings menus.
Work that may apply
The telematics unit provides connected-car services, emergency calling where fitted, and remote app functions.
Work that may apply
Activating connected services usually also depends on the manufacturer's own online systems and subscriptions.
Security & Access
Security modules protect the vehicle against theft, so programming them is deliberately restricted. Work here is only carried out where the procedure is supported and ownership is verified.
Prevents the engine from starting unless an authorised key or key data is recognised. On different cars the immobilizer function lives in the ECM, BCM, cluster or a dedicated module.
Work that may apply
Keyless entry and passive entry/passive start systems (known as KESSY on Volkswagen-group cars and PEPS generically) detect the key near the car for unlocking and push-button start.
Work that may apply
EV & Hybrid
Electric and hybrid vehicles add high-voltage control modules. These require manufacturer-specific procedures and high-voltage safety precautions.
Monitors cell voltages, temperatures and state of charge of the high-voltage battery, and protects it from misuse.
Work that may apply
The master controller of an EV powertrain — it interprets driver demand and coordinates the motor, battery and charging systems.
Work that may apply
Converts high-voltage DC battery power into the AC power that drives the traction motor, and manages regenerative braking.
Work that may apply
Converts AC power from a home or public charger into DC to charge the high-voltage battery.
Work that may apply
Steps high-voltage battery power down to charge the 12-volt battery and run the car's low-voltage electrics.
Work that may apply
Charging-control modules manage communication with the charger and charge-port hardware; in hybrids, a powertrain controller coordinates the engine, motor and battery.
Work that may apply
These are distinct procedures. A diagnosis tells us which of them — if any — your vehicle actually needs.
OBD programming
Programming through the car's diagnostic (OBD) port without removing the module. The most common method where the manufacturer supports it.
Bench programming
Programming a module removed from the vehicle and powered on a bench, used when in-car programming is not possible or not supported.
Boot programming
A lower-level bench method that communicates with the module's processor directly. Used only for specific modules and situations.
J2534 pass-thru programming
A standard interface that lets a computer run the manufacturer's own programming software and connect to the vehicle, typically with the manufacturer's online access.
Some procedures require an online manufacturer connection or authorisation, and some modules can only be worked on through bench or boot-level methods. Not every procedure applies to every vehicle.
| Operation | What it does | When it's needed | Example |
|---|---|---|---|
| Programming (flashing) | Writes software into a module's memory. | Replacement module, manufacturer software update, corrupted software. | Loading the correct software onto a replacement ECM. |
| Coding | Changes settings inside existing software — no new software is written. | After a module replacement, or when equipment is added or changed. | Coding a BCM for the headlamp type fitted to the car. |
| Adaptation | Resets or re-learns values the system stores as parts wear or are replaced. | After repairs, part replacement or fluid service. | Transmission clutch adaptation after gearbox service. |
| Calibration | Aligns a sensor to a physical reference so its readings are accurate. | After alignment, windscreen, bumper or sensor work. | Front camera calibration after windscreen replacement. |
In short: programming changes the software, coding changes its settings, adaptation re-learns stored values, and calibration aligns a sensor to the real world. A single repair can need more than one of them.
Cameras and radar must be aimed precisely for lane-keeping, adaptive cruise and emergency braking to work as designed. Calibration requirements are set by each manufacturer and depend on the vehicle and the repair.
Whether a vehicle needs static, dynamic or both types of calibration — and the targets, space and conditions required — varies by manufacturer, model and the repair carried out. We confirm the procedure for your vehicle before booking.
Electric and hybrid vehicles add a layer of high-voltage control modules — the VCU, BMS, inverter / motor controller, on-board charger, DC/DC converter and charging control modules — on top of the conventional body and chassis electronics.
Different jobs call for different equipment. Professional ECU and module work can involve:
OEM diagnostic systems
Manufacturers' own diagnostic and programming software, required for many procedures.
Professional diagnostic scanners
Multi-brand scan tools for fault codes, live data, coding and service functions.
J2534 pass-thru interfaces
Standardised vehicle interfaces that allow manufacturer software to communicate with the car.
OBD programming
In-vehicle programming through the diagnostic port.
Bench & boot programming
Module-level programming with the unit removed from the vehicle.
Manufacturer online systems
Server-connected programming and security authorisation where the manufacturer requires it.
ECU communication interfaces
Hardware that connects to a module's communication lines (CAN, K-line and others).
ADAS calibration equipment
Targets, alignment and measuring equipment specified for camera and radar calibration.
We work with cars from Indian, Asian, European and American manufacturers, including:
Support and programming availability varies by model, year, module and procedure. A brand being listed does not mean every module on every model of that brand can be programmed.
You don't need to be near one of our locations to get an answer. Every job starts with an assessment of your vehicle and module.
MechOnGo's workshop and doorstep teams operate in Delhi NCR and the areas listed on our Locations page. Vehicles there can be inspected, diagnosed and worked on directly.
If you are elsewhere in India, share your vehicle and module details with us. We assess the job first — what is needed, whether it is supported for your vehicle, and what it requires — before anything is booked.
Depending on the vehicle, module and procedure, the work may be carried out with the vehicle at our location, on the module itself where it can be safely removed, or on-site where that option is available. We confirm the method and any requirements before you commit.
We do not have workshops in every city. Our physical service areas are listed on the Locations page; for anywhere else, we confirm the service method and any requirements before you commit to anything.
Correct software for the exact vehicle
Modules that look identical can need different software depending on model year, engine and equipment.
Protection against failed writes
A programming session interrupted by low voltage or a lost connection can leave a module unresponsive.
Configuration consistency
Wrong coding can switch off features or create warning lights and communication faults in other modules.
Security and authorisation
Security-related procedures follow the manufacturer's authorisation requirements and ownership verification.
Verification after the job
Fault memory, module communication and the affected function are checked once the procedure is complete.
Not every warning light needs programming — many faults are wiring, sensor or mechanical problems, which is why every job starts with a diagnostic scan.
Listed prices are starting points. The exact price is shown after selecting your vehicle, and depends on the module and procedure.
Advanced diagnostics for ECM, EPS, BCM, TCM modules
Complete ECM, EPS, BCM module diagnostics
Short circuit and wiring harness repair
Module programming, immobilizer and feature activation
ECU programming (also called flashing) is writing software into an electronic control unit's memory — for example, installing the correct software on a replacement ECM or applying a manufacturer software update.
ECU coding changes settings inside a module's existing software so it matches the vehicle's variant and equipment. No new software is written; the module is told how the vehicle is configured.
Programming replaces or updates the software itself. Coding adjusts the configuration of software that is already installed. A replacement module often needs both: programming to load the right software, then coding to match the vehicle.
In many cases, yes — but it depends on the manufacturer, model, model year and the specific ECU. Some replacements need online manufacturer authorisation or security matching, and a used ECU from another car may not be adaptable on every vehicle. We confirm this after identifying the vehicle and the unit.
BCM diagnosis, coding and configuration are commonly possible. Programming or security matching of a replacement BCM depends on the vehicle and whether the manufacturer's procedure is supported, which we confirm before starting.
TCM diagnosis and transmission adaptation are commonly possible. Programming a replacement TCM depends on the gearbox type, manufacturer and model year, and some require online manufacturer access.
On many vehicles, a replacement ABS/ESC module needs coding to the vehicle variant, followed by sensor calibration such as steering angle. Support varies by manufacturer and module.
Airbag (SRS) modules can often be diagnosed and, where supported, coded or configured after replacement. The work follows the manufacturer's repair procedure, and what is possible after a crash deployment depends on the manufacturer and applicable rules.
Yes, you can contact us from anywhere in India. We first assess your vehicle and module details, then confirm whether the job is supported and how it can be carried out — at our location, on the removed module, or on-site where available.
Yes. Our workshop and doorstep teams are based in Delhi NCR, but enquiries are accepted from across India. The service method for outside our operating areas is confirmed for each job.
Only for some procedures and vehicles, and only with suitable hardware connected to the car on-site. Many jobs — especially bench work, security procedures and calibrations — need the vehicle or module physically present. We tell you whether a remote-assisted option applies.
No. Many modules can be programmed through the OBD port, but some vehicles or modules do not support it, in which case bench or boot programming may be needed where that is possible.
Bench programming is programming a module after removing it from the vehicle and powering it on a bench. It is used when in-car programming is not possible or not supported.
Boot programming is a lower-level bench method that communicates directly with the module's processor. It is used only for specific modules and situations, such as recovering a module whose normal communication has failed.
J2534 is a standard for pass-thru interfaces that let a computer running the manufacturer's own software connect to the vehicle. It is commonly used for manufacturer-level programming, usually together with the manufacturer's online access.
Sometimes. Many manufacturers require an online connection and authorisation for software downloads, replacement-module programming or security procedures. Other procedures, such as many coding and adaptation functions, do not.
Yes, ADAS cameras and radar generally need calibration after windscreen, bumper, sensor or alignment work. Whether static or dynamic calibration is required — and what equipment and space it needs — depends on the vehicle, and we confirm this for your car.
EV and hybrid modules such as the VCU, BMS, inverter and on-board charger can usually be diagnosed. Programming and updates are more brand-specific and often require the manufacturer's online systems, so support is confirmed per vehicle.
Make, model, model year, fuel type and VIN, the module involved and its part number if known, any fault codes or scan report, and what happened before the problem started. This lets us confirm what is needed and whether it is supported.
Send us your vehicle and module details from anywhere in India. We'll confirm what's needed and whether it's supported for your car.
In Delhi NCR you can also book a service online.