AutoCodes – KIA – P1690 KIA

P1690 KIA Code - Immobilizer SMARTRA No Response

Quick Answer

The immobilizer system will disable the vehicle unless the proper ignition key is used, in addition to the currently available anti-theft systems such as car alarms, the immobilizer system aims to drastically reduce the rate of auto theft. Common causes include No response from SMARTRA, Antenna coil error, Communication line error (Open/Short etc.). 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: P1690 KIA indicates Immobilizer SMARTRA No Response.
Common causes: Common causes include No response from SMARTRA, Antenna coil error, Communication line error (Open/Short etc.).
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.

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Code Popularity 16,325

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1690 KIA Description

The immobilizer system will disable the vehicle unless the proper ignition key is used, in addition to the currently available anti-theft systems such as car alarms, the immobilizer system aims to drastically reduce the rate of auto theft.
The SMARTRA carries out the communication with the built-in transponder of the ignition key. This wireless communication runs by RF (Radio frequency of 125 kHz). The SMARTRA is mounted at the ignition lock close to the antenna coil for RF transmission and receiving. The RF signal from the transponder received by the antenna coil is converted into messages for serial communication by the SMARTRA device. And the received messages from the EMS are converted into the RF signal, which is transmitted, to the transponder by the antenna.
The SMATRA executes the encryption algorithm and transmits the encryption result. And SMARTRA is in charge of relaying from EMS to Transponder.
The SMARTRA is taught in key learning process and stores the DPN (converted from PIN) in memory inside SMARTRA. This DPN (converted from PIN) is used in encryption algorithm between EMS and SMARTRA and to neutralize the SMARTRA. When SMARTRA is neutral, old DPN (converted from PIN) and SEK (generated from DPN) are deleted. New DPN (converted from PIN) can be stored in Neutral SMARTRA.
The SMATRA Learning is possible in the case that the status of SMARTAR is virgin or neutral. In case that the SMARTRA3 is learned, the SMARTRA will transmit the information whether DPN (converted from PIN) inputted from tester is same as the DPN (converted from PIN) in SMARTRA.
The SMARTRA Learning is possible regardless of key status. The SEK (generated from DPN) is used in encrypted communication between SMARTRA and EMS. The SEK (generated from DPN) is made from DPN (converted from PIN) inputted during SMARTRA3 Learning. If the SMARTRA is learned, the SEK (generated from DPN) will be stored in EEPROM. The EMS stores the SEK (generated from DPN) in EEPROM in case that one more key is taught validly.
If the DPN (converted from PIN) inputted from EMS failover 3 trials (3 trials: continuously or intermittently), the EMS will not accept the request of key Learning for an hour. Disconnecting the battery or other manipulation cannot reduce this time. After the connecting of battery to EMS the timer starts again for one hour

OBDII Code P1690 KIA - Immobilizer SMARTRA No Response - AutoCodes.com — P1690 KIA Code - Immobilizer SMARTRA No Response

What does this mean?

What are the Possible Causes of the DTC P1690 KIA?

No response from SMARTRA
Antenna coil error
Communication line error (Open/Short etc.)
Invalid message from SMARTRA to Engine Control Module (ECM)
Faulty SMARTRA

How to Fix the DTC P1690 KIA?

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 P1690 KIA 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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Need Help with the Code?

Get the P1690 KIA code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1690 KIA Code

1. What are the common symptoms of OBDII code P1690 in a KIA, indicating an Immobilizer SMARTRA No Response issue?

- Common symptoms include the engine not starting, the engine stalling shortly after starting, and the immobilizer light staying on.

2. What are the possible causes of the OBDII code P1690 in a KIA related to Immobilizer SMARTRA No Response?

- Possible causes include a faulty key transponder, a malfunctioning immobilizer module, a wiring issue, or a weak car battery.

3. How can I diagnose the OBDII code P1690 related to Immobilizer SMARTRA No Response in my KIA?

- You can diagnose this issue by checking the key transponder, verifying the immobilizer system connections, and performing a battery voltage test.

4. Can I reset the OBDII code P1690 in my KIA by disconnecting the battery?

- Disconnecting the battery may temporarily clear the code, but it is recommended to address the root cause of the Immobilizer SMARTRA No Response problem for a lasting solution.

5. Is it possible to bypass the immobilizer system to start the engine when facing the OBDII code P1690 in a KIA?

- Bypassing the immobilizer system is not recommended as it compromises the vehicle's security features and may lead to further issues down the line.

6. How can I repair the OBDII code P1690 related to Immobilizer SMARTRA No Response in my KIA?

- Repair options include reprogramming the key transponder, replacing the immobilizer module, checking and repairing wiring connections, and ensuring a healthy car battery.

7. Will driving my KIA with the OBDII code P1690 cause any further damage?

- Driving with the code may lead to inconvenience due to potential stalling or starting issues, but it should not cause significant damage to the vehicle if addressed promptly.

8. Can a DIY enthusiast fix the OBDII code P1690 Immobilizer SMARTRA No Response issue in a KIA?

- While some basic diagnostic steps can be performed by a DIY enthusiast, resolving the root cause of the problem may require specialized tools and expertise, best left to professionals.

9. How much does it typically cost to repair the OBDII code P1690 related to Immobilizer SMARTRA No Response in a KIA?

- Repair costs can vary depending on the specific issue, but expect to budget for diagnostic fees, replacement parts, and labor, which can range from a few hundred to over a thousand dollars.

10. Is it necessary to visit a dealership for OBDII code P1690 repairs in a KIA, or can independent mechanics handle the job?

- Independent mechanics with experience in automotive electronics and immobilizer systems can often handle OBDII code P1690 repairs in a KIA, potentially offering cost savings compared to dealership services.