Let’s say something called code 20 appears on the screen of your Opel Corsa. What does this mean, is it an error, is it a malfunction, or does it give information about something, I will inform you about it.
Everything you can think of in your Opel Corsa vehicle, including light bulbs, is monitored by sensors. Thus, the vehicle brain detects a problem that the driver cannot detect by himself and informs the driver of this through codes.
While the warning lamps on the instrument panel of your Opel Corsa give you information and warnings, messages are also displayed on the screen. Information that cannot be detailed is also given on the information screen with the warning lamp illuminated. For example, code 20 is one of them.
What is Opel Corsa Code 20 error?
Code 20 means right dipped beam failure. When you get this error, you should check the right dipped beam and replace it with a suitable bulb. If you install a bulb with an unsuitable resistance value, the code 20 error may continue, so look for the appropriate one while purchasing the headlight bulb.
Sometimes the bulb is OK but the bulb holder is faulty or the cable is not seated well.
Sometimes the right headlight bulb is on, but the code error is also on the screen. What will the driver do in this case, why is this happening?
He mentioned that even the burning of the bulbs is followed by the sensors. Sometimes there is a lack of contact between the bulb holder and the bulb, but the bulb continues to burn. If the sensor detects these short-term interruptions, you will get a code 20 error.
Or, because the cable is not tight, it may play in jerks and the vehicle computer may produce a code 20 error due to a short-term lack of contact.
Code 20 has to add sensor failure to the causes of error. Sometimes everything is fine, but the sensor is dirty and its measurement is not healthy, or it is broken.
If the right low beam is on when you get a Code 20 error, do not ignore this problem by saying that the bulb is on somehow. Sometimes, electrical leakages in the vehicle can secretly exploit the battery, and short circuits can cause component damage.