I have a daewoo matiz that is giving me trouble. I have n...

I have a daewoo matiz that is giving me trouble. I have noticed that if her central locking doesnt work the day, then the next day her security light flashes when you try to start her up and then for the next 30 min she refuses to...

I have a daewoo matiz that is giving me trouble. I have noticed that if her central locking doesnt work the day, then the next day her security light flashes when you try to start her up and then for the next 30 min she refuses to start.. what could be the problem for this? Mechanic's Assistant: Does the light flash, blink or stay solid? Have you tried to reset the security system? It blinks.. we took her to take out the immobilizer, but they said its not possible Mechanic's Assistant: What is the model/year of your Daewoo? 1999 Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far? No, we took her to the mechanic. They said to replace the key but those are expensive.. we tried diconnectin the battery and reconnecting it but that also only helped once.. Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? No I think thats my biggest problem..

Automotive Expert
Welcome to JustAnswer. Thank you for contacting us for assistance with your vehicle. I'm Pete. I will be happy to assist you with your question. May I ask to whom I have the pleasure of speaking with today?

Good day. My name is Charné.
Automotive Expert
Hello Charné. Nice to hear from you today! I'm sorry to hear you are having this problem. I know this can be frustrating. When the central locking stops working does this include the remote/keyfob itself not working to lock and unlock the doors?

The key works to lock the doors individually... our mechanics here told us it was the key thats faulty andthats why the car wont start sometimes, but that doesnt make sense.. when her central locking is messing around, that when the security light comes on...
Automotive Expert
Thank you for your reply and that information as this does help me better understand the situation. Please give me one moment to type out some info for you. I’ll be right back! Thank you for holding Charné! With the way the issue is described this does not sound like the key itself is the cause. This type of fault can be caused by a faulty body computer to where it is not reading the key properly intermittently as well as not allowing the central locking to operate to where it has to be replaced. The best way to identify the body computer as the cause is to have the fault codes retrieved using a fully compatible scan tool plugged into your vehicle's data port when the issue is occurring. You may have to leave the vehicle with a shop for a few days so they can get the vehicle to act up and then retrieve the fault codes immediately to identify it as the cause. The replacement in some cases can cost around $300 to $500 and usually has to be programmed to your vehicle when it is installed by a shop or dealer. Unfortunately, there is no way to remove or bypass the vehicle's security system on this model. The issue has to be repaired to prevent the problem from occurring again.

Ahhh okyy.. that makes better sense.. so it will be best to take her to an auto elec to get the codes and to get the issue sorted?
Automotive Expert
That is correct. This way the fault is being diagnosed properly to identify the issue so the issue can be repaired correctly. This is the best thing to do in this situation.

Thank you so so much for all of your help. I will take her on Monday for the test and repairs. Thank you again.Have a great day :)
Automotive Expert
Your welcome! Glad I could be of some help! I hope everything works out well for you! If there are any additional questions on this issue that should arise, please feel free to reply and ask! Thank you for choosing Just Answer for your questions. Have a great day!

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