P1696 Hyundai Code - Immobilizer Key Mismatched
Quick Answer
Smart key System consists of transponder, which is in the FOB key head, and Smart key ECM. Common causes include Faulty Smart key ECM. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1696 Hyundai indicates Immobilizer Key Mismatched.
- Common causes
- Common causes include Faulty Smart key ECM.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1696 Hyundai Description
Smart Key ECM communicates with PDM via serial communication line so that Smart Key ECM sends signal to PDM.
FOB is requested authentication from Smart Key ECM by using the LF antenna with LF communication. And then, FOB sends authentication signal through the SRx with RF communication.
With this procedure, Smart Key ECM sends authentication signal to Engine ECM in order to allow the engine start.
Authentication for immobilizer is classified two different way. one is pre- authentication and the other is general authentication.
Regardless of success or failure, Pre-authentication makes Immoblizer lamp remains OFF. However, General authentication makes Immobilizer lamp is ON for 30 seconds If authentication is successful. However, if authentication is failed, Immobilizer lamp is OFF for 10 seconds.
How to Fix the DTC P1696 Hyundai?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1696 Hyundai code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1696 Hyundai Code
1. What are the common symptoms of OBDII code P1696 Hyundai (Immobilizer Key Mismatched)?
- Common symptoms include the engine not starting, the vehicle going into "limp mode," and the immobilizer light flashing on the dashboard.
2. What can cause the OBDII code P1696 Hyundai to trigger?
- This code is typically triggered when there is a mismatch between the electronic key and the immobilizer system in the vehicle.
3. How can I diagnose the OBDII code P1696 Hyundai?
- Diagnosis involves using a diagnostic scanner to read the code, checking for any issues with the key or immobilizer system, and verifying that the key is programmed correctly.
4. Can I still drive my vehicle with the OBDII code P1696 Hyundai active?
- In some cases, you may be able to drive the vehicle, but it is recommended to address the issue promptly to prevent any potential starting or running problems.
5. How can I repair the OBDII code P1696 Hyundai?
- Repair options may include reprogramming the key, reprogramming the immobilizer system, or replacing the key or immobilizer components if necessary.
6. Will disconnecting the battery reset the OBDII code P1696 Hyundai?
- Disconnecting the battery may temporarily clear the code, but it is important to address the underlying issue to prevent the code from reoccurring.
7. Can aftermarket keys cause the OBDII code P1696 Hyundai to trigger?
- Yes, using aftermarket keys that are not programmed correctly or are incompatible with the vehicle's immobilizer system can lead to this code being triggered.
8. How do I know if the key needs to be reprogrammed for the OBDII code P1696 Hyundai?
- If the key is not being recognized by the vehicle, or if the immobilizer light is flashing, it is likely that the key needs to be reprogrammed.
9. Are there any DIY solutions for the OBDII code P1696 Hyundai?
- While some basic troubleshooting steps can be taken, such as checking the key's battery and ensuring it is in good condition, more advanced repairs may require professional assistance.
10. How long does it typically take to repair the OBDII code P1696 Hyundai?
- The repair time can vary depending on the specific cause of the code, but reprogramming a key or the immobilizer system can often be done within a few hours at a dealership or auto repair shop.
Discuss the causes and fixes for P1696 Hyundai OBDII Code
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I replace the engine computer on kia sorento 2011 and now have dtc p1696 how can i fix it? thanks
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I have Verna 2009 and facing problem to start it it take so many try to start it Been to work shop and they check it and error p1693 and P1696 and they saying to change the start switch and smart card called some thing is right or some other way to fix it
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How is the condition of the key? you could start by replacing the ignition key.
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Thank I will do it and will see I been to work shop and they rest it at the movement is working thanx
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