P1631 2017 Chevrolet Silverado Code - Theft Deterrent Start Enable Signal Not Correct
Quick Answer
The P1631 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates that the Theft Deterrent Start Enable Signal is not correct. Common causes include Faulty transponder key, Malfunctioning receiver module, Wiring issues or loose connections in the anti-theft system. 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
- P1631 2017 Chevrolet Silverado indicates Theft Deterrent Start Enable Signal Not Correct.
- Common causes
- Common causes include Faulty transponder key, Malfunctioning receiver module, Wiring issues or loose connections in the anti-theft system.
- 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 P1631 2017 Chevrolet Silverado Description
The P1631 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates that the Theft Deterrent Start Enable Signal is not correct. This code is related to the vehicle's anti-theft system, which is designed to prevent unauthorized access to the vehicle and protect it from theft. When this code is triggered, it means that the signal that enables the vehicle to start is not being received or is incorrect, potentially leading to starting issues or the vehicle not starting at all.
Common Causes of P1631 2017 Chevrolet Silverado
- Faulty transponder key.
- Malfunctioning receiver module.
- Wiring issues or loose connections in the anti-theft system.
- Faulty immobilizer system.
- Software or programming issues with the anti-theft system.
Symptoms of P1631 2017 Chevrolet Silverado
- Engine cranks but does not start.
- Engine starts but shuts off shortly after.
- Security light on the dashboard is illuminated.
- Inability to start the vehicle using the key.
How to Fix P1631 2017 Chevrolet Silverado
- Check the transponder key for any damage or malfunction. Replace the key if necessary.
- Inspect the receiver module for proper operation and connections. Replace the module if faulty.
- Check the wiring and connections in the anti-theft system for any issues. Repair or replace as needed.
- Test the immobilizer system for proper function. Replace if found to be faulty.
- Perform a reprogramming or reset of the anti-theft system to ensure correct operation.
Cost to Fix P1631 2017 Chevrolet Silverado
The typical repair costs for addressing a P1631 code on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of replacing a transponder key can range from $50 to $200, while a receiver module replacement can cost between $100 and $300. Wiring repairs or replacements may cost around $100 to $300, and fixing or replacing the immobilizer system can range from $200 to $500.
Tech Notes for P1631 2017 Chevrolet Silverado
-Insert the key, attempt to start the vehicle, and leave the key in the ON position.
In some vehicles, the Battery and Security light will blink for several seconds, and then shut off. Then the Security light will then remain ON. Leave the ignition ON until the Security light goes OFF. This will take more than 5 mins.
-When the Security light goes OFF, turn the ignition to the OFF position.
-Leave ignition OFF for 20 Seconds.
-Attempt to start the vehicle again and leave the key in the ON position.
-In some vehicles, the Battery and Security light will blink for several seconds, and then shut off. Then the Security light will then remain ON. Leave the ignition ON until the Security light goes OFF. This will take more than 5 mins.
-Turn the ignition to the OFF position for 20 Seconds.
-Attempt to start the vehicle again and leave the key in the ON position.
-In some vehicles, the Battery and Security light will blink for several seconds, and then shut off. Then the Security light will then remain ON. Leave the ignition ON until the Security light goes OFF. This will take more than 5 mins.
-Once this entire procedure has been completed (three times) your vehicle will start on the fourth attempt.
Note: Some vehicles perform the relearn in a different sequence. You may notice your security light, battery light, and abs light will alternate. Once the security light is left out of the sequence that is considered one step. Repeat the procedure two more times and on the fourth time, your vehicle will start.
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Frequently Asked Questions about P1631 2017 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P1631 on a 2017 Chevrolet Silverado?
The common symptoms include the engine not starting, the security light staying on or flashing, and the vehicle going into theft deterrent mode.
2. What causes the OBDII code P1631 on a 2017 Chevrolet Silverado?
The code P1631 typically indicates a problem with the Theft Deterrent Module (TDM) or its communication with the Powertrain Control Module (PCM).
3. How can I diagnose the cause of the OBDII code P1631 on my 2017 Chevrolet Silverado?
Diagnosing this code may require checking the TDM for proper operation, inspecting wiring for any damage, and scanning the system for related trouble codes.
4. Can I still drive my 2017 Chevrolet Silverado with the OBDII code P1631 present?
It is not recommended to drive the vehicle with this code present, as it may lead to starting issues or the vehicle going into theft deterrent mode while driving.
5. How can I reset the OBDII code P1631 on my 2017 Chevrolet Silverado?
Resetting the code typically involves fixing the underlying issue causing the code, such as repairing the TDM or addressing communication problems between modules.
6. Is it safe to reset the OBDII code P1631 on my 2017 Chevrolet Silverado without fixing the issue?
Resetting the code without addressing the underlying problem may temporarily clear the code, but the issue will likely reoccur, potentially leaving you stranded due to starting problems.
7. Can a DIY enthusiast repair the OBDII code P1631 on a 2017 Chevrolet Silverado?
While some basic diagnostics can be done by a knowledgeable DIYer, diagnosing and repairing the TDM or communication issues may require specialized tools and expertise.
8. How much does it typically cost to repair the OBDII code P1631 on a 2017 Chevrolet Silverado?
The cost of repair can vary depending on the specific cause of the code, but it may involve replacing the TDM, addressing wiring issues, or reprogramming modules, potentially costing a few hundred dollars.
9. What should I do if the OBDII code P1631 keeps coming back on my 2017 Chevrolet Silverado?
If the code keeps reappearing after resetting, it is important to thoroughly diagnose the issue, ensuring all possible causes are addressed to prevent further occurrences.
10. Can a faulty key or key fob cause the OBDII code P1631 on a 2017 Chevrolet Silverado?
Yes, a faulty key or key fob can potentially trigger the code P1631 if it is not communicating properly with the vehicle's security system, so it's worth checking the key as part of the diagnostic process.
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