Press either the erase or delete button depending on which scanner reader you purchased. Remove the scanner from the port and turn off the vehicle. Wait approximately 20 minutes and turn the vehicle on to see if the error code was erased.
Likewise, how do you clear a Mercedes fault code? The first way to reset a check engine light on your Mercedes-Benz is with a scanner. If you have one, simply plug it in, read the related codes, and press “clear” or “reset.” So long as the code issue has been resolved, it should go off.
Also the question is, how do I clear error codes on my car?
Furthermore, how do you reset the trouble codes? Disconnect your battery. Remove the negative battery cable first, then the positive and allow the car to sit for a few minutes. Reconnect, using the positive first and then the negative. This resets the engine codes in some vehicles, though it also interrupts other functions, such as the clock and the radio settings.
In this regard, how do I reset my Mercedes messages?
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What does clearing fault codes do?
On clearing the codes with the “Erase Codes” function, the system status changes to “Not Ready”. … Afterwards, connect the scanner again and read the System Status to see if the “Not Ready” condition has been erased.
Does disconnecting the battery clear codes?
Leaving the battery disconnected for about 15 minutes will ensure the vehicle systems will completely reset when you reconnect the battery. … Disconnecting the battery will clear the error codes and reset the check engine light.
Will AutoZone reset check engine light?
Did you know that you can get your check engine light scanned for free? Any of the major parts stores in the country, such as: Napa, Advance Auto, Autozone and O’Reilly’s, will scan your vehicle, and tell you the P codes for no charge at all.
Will disconnecting battery reset ECU?
- It depends on the car’s age and type of ECU used. On some older cars, disconnecting the battery will reset the system but in most new cars it does nothing, except potentially reset the clock and radio station presets.
How long do you leave battery disconnected to reset ECU?
Disconnecting the battery for a short time may not do the trick because the car’s computer, or ECU, still has some current in it. Waiting for over 15 minutes after disconnecting the engine will help ensure the equipment is reset.
How do I reset my ECU?
How do I reset my ECU without a scanner?
After removing the battery cables, you should proceed to cycle the ignition switch to the ON and OFF position for 3 to 5 times. Press on the horn button in the steering wheel. Keep it pressed for 30 seconds to a full minute to drain out all the stored power in the ECU capacitor. The horn is connected to a hot circuit.
Locate the trip odometer reset button to the left of the instrument panel. Hold the reset button for a few seconds until the screen displays the message, “Do you want to reset the service interval? Confirm with the R-button.” Release the button once the phrase appears.
How do I reset my Mercedes service reminder?
- Step 1 – Turn ignition to position “1”
- Step 2 – Scroll to the “Trip” option.
- Step 3 – “Accept” a phone call.
- Step 4 – Press the scroll forward button.
- Step 5 – Restore to “Full Service”
- Step 6 – Reset the service indicator.
How do you reset the service light on a Mercedes 2020?
