Honda accord 2019 ECU not working
Thread Starter
Joined: Sep 2021
Posts: 2
Honda accord 2019 ECU not working
Hi, new member here seeking for advice. So I recently bought a 2019 honda accord sport that got water damage, I need to change the ECU and the body control module, will I have any problem using the original car key if I change the ECU?
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Joined: May 2006
Posts: 18,398
From: Wisconsin
Not certain for 2019, but I'm pretty sure you WILL have a problem. The immobilizer is in the ECU, and a new ECU will be looking for the RFID chip from the keys that belong to that donor car. The RFID antenna is like a ring around the place where you put the key into the ignition switch.
Some locksmiths can deal with that, otherwise the dealer will have to make it work.
Temporary work-around is to have the key that belongs to the new ECU & tape it together with the key that belongs to your car. That should allow you to start the car & drive to the locksmith.
Some locksmiths can deal with that, otherwise the dealer will have to make it work.
Temporary work-around is to have the key that belongs to the new ECU & tape it together with the key that belongs to your car. That should allow you to start the car & drive to the locksmith.
Thread Starter
Joined: Sep 2021
Posts: 2
Not certain for 2019, but I'm pretty sure you WILL have a problem. The immobilizer is in the ECU, and a new ECU will be looking for the RFID chip from the keys that belong to that donor car. The RFID antenna is like a ring around the place where you put the key into the ignition switch.
Some locksmiths can deal with that, otherwise the dealer will have to make it work.
Temporary work-around is to have the key that belongs to the new ECU & tape it together with the key that belongs to your car. That should allow you to start the car & drive to the locksmith.
Some locksmiths can deal with that, otherwise the dealer will have to make it work.
Temporary work-around is to have the key that belongs to the new ECU & tape it together with the key that belongs to your car. That should allow you to start the car & drive to the locksmith.
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