How to Resolve Immobilizer Transponder Error P1693?

Hey everyone,
I’ve got a 2009 Hyundai i10, and lately, I’ve been having trouble starting it. Sometimes it cranks but won’t start, while other times it starts up just fine. Yesterday, I spent ages trying to start it, and eventually, it kicked into gear. I took it to a garage, and they mentioned it might be due to an Immobilizer transponder error, specifically P1693. They tried to fix it but couldn’t. Any suggestions on how I can tackle this issue? I’m fairly new to driving, so any help would be greatly appreciated.



If you have a spare key, try using it. The problem could be with the specific key you are using.


To fix Immobilizer Transponder Error P1693, follow these steps:

  1. Check your key: Make sure you’re using the right key and it’s in good shape.
  2. Battery check: Ensure the key fob battery isn’t dead; replace if needed.
  3. Reset the system: Disconnect the car battery briefly, then reconnect to reset the immobilizer.
  4. Get professional help: If the problem continues, see a qualified mechanic or contact the manufacturer.

@DolphGabbana Reset the Immobilizer System thorugh disconnect the car battery for a few minutes to reset the system


Here you need reset the immobilizer system, but before you do that consult your vehicle’s owner’s manual or reach out to the manufacturer for specific instructions. This will help to solve the problem.


Great tip! If the first key doesn’t solve the problem, try another key. This can help identify whether the issue lies with the key or the immobilizer system.


I agree with you @DolphGabbana Consult owner’s manual or an expert. It Will help you solve the problem

Sure thing! "Hey @Zack12, if the second key doesn’t do the trick either, it might be time to seek the expertise of a mechanic to resolve the issue once and for all.

Maybe this will help @DolphGabbana [File PDF](file:///C:/Users/pc/Downloads/P1693%20Immobilizer-Transponder%20Error%20(1).pdf)