February 20, 2021 Lada.Online 19 727 2
Resetting and initializing the ECU (electronic engine control unit) is required for various reasons. For example, this procedure is performed after replacing the sensor with a working one or after flashing the controller. If the car is equipped with a multifunction steering wheel, then after resetting and initializing the ECU, the buttons on the steering wheel should also be taught.
The "Check Engine" error is on. How to reset a car's ECU?
Problems with rebooting the on-board computer occur to car owners all the time, so you need to understand the problem in detail.
ECU is an electronic control unit installed in a car, designed to control engine operation. It is a computing device that controls power, fuel consumption, torque, quality indicators of exhaust gas composition, etc. Errors in the operation of the power unit lead to the “Check Engine” lamp lighting up on the instrument panel. This reminder will remain illuminated until the ECU is reset.
Reboot
On almost all cars, especially in the budget segment, the following steps allow you to reset ECU errors:
1. Remove the “plus” terminal from the battery for a period of 10-15 minutes.
2. Turning the ignition key to the last position before starting the engine will signal the dashboard lights to come on. Waiting 1-2 minutes
, then turn the key to its original position.
The ECU will perceive these actions as if the driver saw a malfunction lamp, stopped, turned off the engine, disconnected the battery, fixed the problem and continued driving.
This method allows you to clear the error if the cause is engine operation with a faulty or disconnected sensor, misfires and other short-term failures.
If the lamp cannot be eliminated, you should use a special diagnostic connector, which is standard on almost any car manufactured after 2000 and is called OBD2. It is usually located under the steering column or in the pedal assembly. It may be located in the engine compartment, under the feet of the front passenger; the exact location is indicated in the vehicle operating manual.
Scanners at service stations are connected to a laptop, where you can see and print system error codes. Compact scanners with Bluetooth or Wi-Fi support are becoming increasingly popular among car enthusiasts; to fully operate them, you only need a smartphone. The adapter is easy to use, easy to connect, no wires. You can connect it to the connector once and constantly see the desired data on the smartphone screen during the trip.
Using such an adapter, it becomes possible to reset errors and find out the sources of critical faults. On the smartphone screen, you can digitally monitor engine operating parameters, such as coolant temperature, changes in on-board network voltage, average fuel consumption, and the remaining fuel in the fuel tank, which is extremely convenient.
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