How to Reset a Check Engine Light in Melbourne

Engine malfunction warning light control in car dashboard. 3D rendered illustration. Close up view.

While it is to alert drivers, when the check engine light comes on and stays on, it is annoying. Pro Car Removal offers car owners the following guide on how to reset a check engine light.


Cars of today are packed full of computers that control everything from the wiper blades to popping open the truck. The two main computers that are related to the engine are the engine or powertrain control module (ECM or PCM) and the transmission control module (TCM).


The TCM and ECM can be installed nearly anywhere in the car like under the hood or in the interior or trunk of the car. The computer uses sensors to measure the accuracy of engine parts and components like the engine coolant temperatures. The ECM monitors transmission and engine function. The sensors collect the data and can then fine-tune actuators to deliver needed power or to reduce emissions if possible. When problems are detected, a check engine light will signal.


To reset the engine light, use a scan tool (Bluetooth OBD2 dongles, USB OBD2 cables, or a Standalone OBD2) that plugs into the ODB2 DLC port. Typically, this is on the driver’s side of the car. Look at your owner’s manual to find where it is located. Be sure that your car is turned off before you start. Start with activating the function “Erase Codes” or “Clear DTC.” The tool with providing specific instructions that came with its purchase. Once it is confirmed by the tool that the operation is complete, turn the key to the “OFF” position.


When the check engine light does appear (typically on the dash of the driver’s side of the car,) it is essential that car owners do not neglect the light. The light is there to alert the driver that there is an issue with their car’s engine. Neglecting the situation can lead to further damage that can add up to hundreds to thousands of dollars in engine damage. Read your owner’s manual to get better familiar with your car, and have an authorised mechanic check out its engine when the car alerts you that an issue is brewing by signaling with its “check engine light.” Immediate and regular attention & service is the key to a healthy engine.


For car owners that are selling their cars, Pro Car Removal buys unwanted cars of all makes and conditions. Give us a call for a cash quote.
Call 0420 474 829.

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