What is the design and purpose of electronic control modules and controllers?

Electronic control modules and controllers are electronic components responsible for supervising specific vehicle systems. A typical element consists of a housing, an electronic circuit board, connectors, and software that records the logic of operation. These modules are mounted in various places in the car, depending on the function and design of the installation. Their purpose is to process signals and control the operation of other elements in a way that is consistent with the vehicle's configuration.

What are electronic control modules and controllers used for?

Electronic control modules and controllers are used to manage the operation of the engine, transmission, braking system, comfort equipment, and other car systems. They receive data from sensors, analyze it, and send commands to actuators. Without their proper operation, many vehicle functions may work incompletely, unstably, or in emergency mode.

What role does the data bus play in the operation of controllers?

A data bus is a communication system connecting many modules in a single vehicle. It is used to transmit information between controllers without the need to run a separate wire for every function. Thanks to this, cooperation between the engine ECU, ABS, comfort module, and other systems in real-time is possible. When diagnosing a fault, one must therefore consider not only the controller itself but also the communication between modules.

How to choose the right controller for a specific car?

The safest way is to compare the OEM number, manufacturer part number, engine version, fuel type, and transmission type. In many models, the body version, production year, equipment, and connector type also matter. For electronic parts, it is also worth checking whether a given module requires adaptation or coding after installation.

What symptoms may indicate a problem with a module or controller?

Typical symptoms include errors recorded in diagnostics, lack of communication with a given system, incorrect operation of windows, locks, fans, ABS, or the engine. It also happens that the car enters emergency mode or experiences periodic loss of functions. Similar symptoms may also result from a damaged wiring harness, poor power supply, or problems with a connector.

What should be checked before installing a used module?

Before installation, it is worth checking the condition of the housing, pins, and sockets, as well as the compatibility of markings with the removed element. A good practice is to compare interchangeable numbers and ensure that the car has the same equipment as the donor vehicle. After installation, coding, adaptation, or clearing errors in the controller may be necessary.

Electronic control modules and controllers

At Globalparts, we offer a wide selection of original used electronic control units and ECUs for many popular car brands, including BMW, MINI, Mercedes, Audi, Volkswagen, and others. Our original electronic control units and ECUs ensure reliability, performance, and full compatibility with your vehicle.

More information

Make

Audi TT FV Mk3 Navi SD GPS MMI Multimedia Head Unit Module 8S0035021E

Product currently unavailable

Part no. 4F0907357E

Audi RS4 B7 Headlight Control Module ECU Unit 4F0907357E

Product currently unavailable

Part no. 07K907309L

Audi RS3 8Y 2.5 TFSI Quattro 400HP DNWC Engine Unit ECU 07K907309L Automatic

Product currently unavailable

Audi A3 8P 1.6 TDI 105HP CAYC Engine Control ECU Kit BCM Key 03L906023PP Manual

-40%

Part no. 03L906023PP-2

Audi A3 8P 1.6 TDI 105HP CAYC Engine Control ECU Kit BCM Key 03L906023PP Manual

Product currently unavailable

Part no. 4M0959107B

Audi A4 B9 Boot Tailgate Control Module Unit 4M0959107B

Product currently unavailable

Part no. 8W1959593J

Audi Q5 FY Door Control Module Unit ECU Front Driver's Side 8W1959593J

Product currently unavailable

Part no. 4G0906014C-1

Audi S6 C7 4.0 TFSI CTGE Quattro Engine Control ECU Kit 4G0906014C Automatic

Product currently unavailable

Part no. 8H0035223E

Audi A4 B7 Convertible Rear Speaker Amplifier Blaupunkt Right O/S 8H0035223E

Product currently unavailable

Part no. 8T0862335C

Audi A4 B8 A5 S5 Q5 Interface Box Bluetooth Control Module ECU 8T0862335C

Product currently unavailable

Part no. 8P7907115L-2

Audi A3 8P 1.8 TFSI CDAA 160HP Engine Module ECU Kit 8P7907115L Manual

Product currently unavailable

Part no. 8E5035223

Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman 8E5035223

Product currently unavailable

Part no. 4H0035670T

Audi A8 D4 Reader Radio CD System Audio MMI Multimedia Head Unit 4H0035670T

Product currently unavailable

Part no. 03L906018AJ-1

Audi A3 8P 2.0 TDI 170HP CFGB Engine Control Unit ECU Kit 03L906018AJ Manual

Product currently unavailable

Part no. 4F0910553D

Audi A6 C6 Adaptive Suspension Software Module Control Unit ECU 4F0910553D

Product currently unavailable

Part no. 2Q0959659

Audi A1 GB VW Polo AE Taigo CS Taigun CW Front Impact Crash Sensor 2Q0959659

Product currently unavailable

Part no. 81A035502

Audi A3 8V Wireless Charger Centre Console Phone Charging Module Unit 81A035502

Product currently unavailable

Part no. 4H0907064BN

Audi A6 C7 Saloon CCM Comfort Control Module Onboard Unit ECU 4H0907064BN

Product currently unavailable

Part no. 4L0910401G-1

Audi Q7 4L 3.0 TDI CASA Quattro 240HP Engine Contol ECU Set 4L0910401G Automatic

Product currently unavailable

Part no. 8K0907551-3

Audi S5 8F 3.0 TFSI 333HP CAKA Quattro Engine Control Unit ECU 8K0907551

Product currently unavailable

Part no. 4E0910553L

Audi A8 4E S8 D3 Adaptive Air Suspension Control Module 4E0910553L

Product currently unavailable

Part no. 4F0910223C

Audi A6 C6 Hifi Audio Sound Speakers Amplifier Control Unit ECU 4F0910223C

Product currently unavailable

Part no. 5Q0907561F

Audi A3 8V VW Golf Mk7 VII Front Radar Distance Control Unit Module 5Q0907572F

Product currently unavailable

Part no. 8R0035223H

Audi A4 B8 A5 8T Q5 8R Audio Amplifier Sound Module Control Unit 8R0035223H

Product currently unavailable

Audi Q2 GA Park Parking Assist PDC Distance Control Unit Module 5QA919294L

-40%

Part no. 5QA919294L

Audi Q2 GA Park Parking Assist PDC Distance Control Unit Module 5QA919294L

Product currently unavailable

Part no. 03L906022MA

Audi A3 8P 2.0 TDI CBAB 140HP Engine Control Module ECU 03L906022MA Automatic

Product currently unavailable

Part no. 8P0907279F

Audi A3 8P Fusebox Body Control Comfort Module BCM Unit ECU 8P0907279F

Product currently unavailable

Part no. 5QS907530A

Audi S3 8Y Diagnostic Interface Data Bus Gateway Control Unit 5QS907530A

Product currently unavailable

Part no. 8W1907064EB

Audi A5 F5 B9 Body Control Unit Module BCM 8W1907064EB

Product currently unavailable

Part no. 4L0910401T

Audi Q7 4L 3.0 TDI BUG 233HP Engine Contol Unit ECU 4L0910401T Automatic

Product currently unavailable

Part no. 04L906021CL-1

Audi A5 8T 2.0 TDI CNHA 190HP Engine Control Unit ECU Kit Key 04L906021CL Manual

Product currently unavailable

Part no. 8H0035192F

Audi A4 S4 B7 Multimedia Stereo Radio CD Player Head Unit 8H0035192F

Product currently unavailable

Part no. 8K0907064EC

Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907064EC

Product currently unavailable

Part no. 4L0910553L

Audi Q7 4L Body Comfort Control BCM Onboard Supply Module Unit ECU 4L0910553L

Product currently unavailable

Part no. 04L907309R-2

Audi A3 8V 1.6 TDI 110HP DBKA Engine ECU 04L907309R Manual

Product currently unavailable

Part no. 8W0035502B

Audi A4 B9 Wireless Charger Centre Console Phone Charging Module 8W0035502B

Product currently unavailable

Part no. 5Q0937084CJ

Audi A3 8V 1.6 TDI DBKA BCM Body Control Module Unit ECU 5Q0937084CJ

Product currently unavailable

Part no. 5WA959651

Audi A3 8Y VW Golf Mk8 Air Module Crash Impact Sensor 5WA959651

Product currently unavailable

Part no. 04L907309AB-5

Audi Q3 8U Quattro Engine Control Unit ECU 2.0 TDI DFUA 184HP 04L907309AB Manual

Product currently unavailable

Part no. 8T0959754

Audi A5 8T Remote Radio Alarm Key Button Control Unit Module 868 MHZ 8T0959754

Product currently unavailable

Part no. 8W0035736

Audi A4 B9 Connector AUX USB Adapter Port Socket 8W0035736

Product currently unavailable

Part no. 8P0907279C

Audi A3 8P Body Control Comfort Unit Module BCM Unit 8P0907279C

Product currently unavailable

...

Showing 1585-1625 of 1625 products