ECU/BCM Component-Level Electronic Repair — Drivers, Regulators & Power Stages | VoltCheck Motors

Electronic Repairs

Automotive control modules rely on a large number of SMD components, drivers and voltage stages.
Failures in these components can cause no communication, no start, short circuits, incorrect sensor readings or complete module shutdown.

This service provides precise component-level repair, focusing on electronic parts that commonly fail in ECUs, BCMs and other modules.

We do not repair flooded/water-damaged modules, broken PCB tracks or MCU processors.

What We Repair (Component Level)

1. SMD Component Replacement

Replacement of common surface-mounted components:

  • resistors

  • capacitors

  • diodes

  • transistors

  • MOSFETs

  • small signal components

Using controlled soldering stations and microscopes for clean, precise work.

2. Drivers & Power Stages

These components often fail in:

  • injector drivers

  • ignition drivers

  • fuel pump drivers

  • glow plug drivers

  • low-side/high-side drivers

Symptoms include no injector pulse, no spark, no pump control or short circuits.

We replace only the affected driver components — no MCU or CPU work.

3. Voltage Regulators & Power Management

Replacement and correction of:

  • 5V/3.3V regulators

  • internal power supply ICs

  • stabilisers and reference voltage chips

  • protection diodes and fuses

Voltage faults are a common cause of “no communication” or “internal control module error”.

4. Protection Components

Repair of:

  • TVS diodes

  • transient suppression circuits

  • reverse polarity protection components

  • over-voltage protection ICs

These often fail after jump-start mistakes, short circuits or alternator issues.

5. Connector Pin Reflow (Not Track Repair)

Reflowing broken or cracked solder joints on:

  • ECU connectors

  • BCM connectors

  • PBC connector pads

We do not rebuild damaged PCB tracks — only reflow of existing pads.

❌ What We Do NOT Repair

To keep the service accurate and not cause false expectations:

  • no PCB track reconstruction

  • no MCU/processor repair

  • no BGA reballing

  • no flooded/water-damaged modules

  • no modules with heavy corrosion

  • no key readers / smart modules damaged by water

  • no airbags/pretensioners hardware repair

We work strictly at the electronic component level.

Typical Problems We Solve

  • ECU not powering

  • no communication

  • injector/ignition driver failure

  • fuel pump driver failure

  • incorrect 5V reference

  • module resets or intermittent power

  • BCM power section failure

  • short circuits inside the module

  • blown protection components

Supported Modules

  • ECUs

  • BCM / UCH / GEM / CEM

  • TCU (software-only repairs; hardware limited)

  • Instrument clusters (component-level only)

  • Various control modules with standard PCB construction

Postal Service — Ireland, UK & EU

Modules can be sent directly to the lab.

Includes:

  • diagnostics

  • component-level repair

  • thermal testing

  • return shipping with tracking

  • WhatsApp updates

Why This Service

  • precise SMD work under microscope

  • professional soldering stations and tools

  • quality components and correct replacements

  • no unnecessary “full rebuilds”

  • fast turnaround

  • transparent and safe service