DRG Auto repairs vehicle electronic modules at component level where practical, helping workshops, auto electricians and vehicle owners avoid unnecessary module replacement.
We work on automotive control units such as ECU/ECM, TCU/TCM, ABS/ESP, EPCU, BCM, EPS, instrument clusters and other electronic modules. Our work focuses on board-level inspection, electronic fault finding, component replacement and practical repair assessment.
Modern vehicles rely on multiple electronic control modules. When one fails, replacement can be expensive, unavailable, or require coding. DRG Auto assesses the original module and repairs it where practical.
Engine control units can fail due to power supply faults, failed drivers, corrosion, heat damage, cracked solder joints or internal communication faults.
Transmission control modules can cause shifting faults, limp mode, solenoid control issues or no communication when the internal electronics fail.
ABS and stability control modules often fail internally, causing warning lights, communication faults or intermittent braking system errors.
We also assess other automotive electronic modules where component-level repair is practical and the fault can be investigated on the bench.
Automotive computer repair is different from ordinary scan-tool diagnosis. Once the module is on the bench, we inspect the circuit board, test electronic sections and repair failed components where possible.
We open the module and inspect the board for visible damage such as corrosion, burnt components, cracked solder joints, contaminated areas, damaged tracks and signs of previous repair attempts.
Many module faults are too small to see clearly by eye. Magnification helps us inspect fine-pitch components, solder joints, corrosion around ICs and damage near connectors or driver circuits.
Bench testing helps us check power, ground, communication and obvious electronic behaviour before deeper repair work. It is useful for confirming whether the fault is likely inside the module.
Vehicle symptoms can come from the module, wiring, sensors, power supply, software or other vehicle-side faults. Our work focuses on the physical electronic module once it has been removed for assessment.
A diagnostic scanner may fail to communicate with an ECU, TCU, ABS module or BCM due to internal power supply faults, damaged communication transceivers, corrosion or board-level damage.
Engine computer faults can affect relays, injectors, ignition control, immobiliser communication or sensor circuits, causing no-start or intermittent-start symptoms.
ABS, ESP, transmission and engine warning lights may be caused by internal module faults, but wiring, sensors and vehicle-side issues should also be ruled out by the workshop.
Moisture ingress, capacitor leakage, poor sealing, battery faults and previous repair attempts can cause corrosion, damaged tracks and intermittent electronic faults.
DRG Auto is designed to support workshops when the vehicle-side diagnosis points toward a faulty module and the unit needs electronic assessment.
Diagnostic notes, fault codes, vehicle symptoms and testing already performed by the workshop help us focus the bench assessment. The clearer the fault history, the easier it is to avoid guesswork.
We are not replacing the role of the mechanic or auto electrician. We focus on the electronic module itself.
Replacement is not always the best first option. If the original unit is repairable, it may reduce delays, avoid coding problems and preserve the vehicle’s existing configuration.
Repairing the original ECU, ABS or TCU can avoid compatibility, immobiliser and programming issues that may occur with used replacement modules.
Component-level repair can be more economical than sourcing a new module, especially for rare, discontinued or back-ordered vehicle computers.
Some modules are difficult to replace quickly. Repairing the original unit can be useful when replacement stock is limited or vehicle downtime matters.
Our background in logic board repair, microsoldering and electronics troubleshooting carries across to many vehicle modules and diagnostic tools.
Not every automotive module can be repaired. Some faults are caused by the vehicle, some are intermittent, and some modules are too damaged or too restricted to repair economically.
These examples show the types of automotive electronic modules and related diagnostic equipment we inspect or repair.
ECU repair case involving capacitor leakage, board contamination, corrosion risk and component-level repair.
ECM repair case study involving alternator LIN communication symptoms and ECU-side diagnostics.
ABS/ESP module repair example involving hybrid circuit construction and internal connection faults.
EPS control unit repair example showing relay access, board-level inspection and practical repair limits.
Repair support for diagnostic scanner tablets used by mechanics and workshops, including Autel, Launch and similar tools.
ECU repair workshop example showing internal board inspection, connector layout and typical failure modes.
DRG Auto operates from Device Repair Guy in Wellington CBD. Modules can be brought in or couriered to us after the correct intake form has been completed.
Please use the repair process page to choose the correct intake form before sending a module. This helps us capture the vehicle details, fault symptoms, diagnostic codes and module information needed for assessment.
For this service, we usually need the module itself rather than the whole vehicle.
DRG Auto is part of Device Repair Guy’s wider board-level electronics repair service in Wellington.
Yes. DRG Auto inspects and repairs many engine control units at component level, including power faults, communication faults, corrosion, capacitor leakage and board damage.
Yes. We inspect ABS and ESP control modules for communication issues, internal circuit faults, connector faults, bond wire issues and board-level damage.
We can inspect TCU and TCM modules for no communication, power faults, corrosion and internal board issues. Repairability depends on the module construction and fault type.
We can assess EPCU modules and other power control modules case by case. Repairability depends on the construction of the module, the fault type and the availability of replacement components.
No. Some modules are sealed, severely damaged, affected by vehicle-side faults, or require programmed ICs that are not available. We assess whether component-level repair is practical.
