P1649 2016 Chevrolet Silverado Code - Immobilizer Security Code Not Programmed
Quick Answer
When learning the security code, as well as the challenge and response sequence, the Engine Control Module (ECM) is placed in learn mode. Common causes include Perform Engine Control Module Immobilizer Learn Procedure, Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted. 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
- P1649 2016 Chevrolet Silverado indicates Immobilizer Security Code Not Programmed.
- Common causes
- Common causes include Perform Engine Control Module Immobilizer Learn Procedure, Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted.
- 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 P1649 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P1649 2016 Chevrolet Silverado?
- Perform Engine Control Module Immobilizer Learn Procedure
- Faulty Engine Control Module (ECM)
- Engine Control Module harness is open or shorted
- Engine Control Module circuit poor electrical connection
How to Fix the DTC P1649 2016 Chevrolet Silverado?
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 P1649 2016 Chevrolet Silverado 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.
Need more information about the P1649 2016 Chevrolet Silverado code?
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Frequently Asked Questions about P1649 2016 Chevrolet Silverado Code
1. What does OBDII code P1649 on a 2016 Chevrolet Silverado mean?
The code P1649 indicates that the Immobilizer Security Code has not been programmed properly.
2. What are the common symptoms of OBDII code P1649 on a 2016 Chevrolet Silverado?
Common symptoms include the vehicle not starting, the engine stalling shortly after starting, and the security light flashing on the dashboard.
3. What could cause the Immobilizer Security Code Not Programmed issue on a 2016 Chevrolet Silverado?
Possible causes include a faulty immobilizer module, a disconnected or damaged wiring harness, or issues with the key fob or key transponder.
4. How can I diagnose the cause of OBDII code P1649 on my 2016 Chevrolet Silverado?
To diagnose the issue, you may need to use a diagnostic scanner to retrieve the specific trouble codes, check the connections to the immobilizer system, and inspect the key fob for any damage.
5. Can I fix OBDII code P1649 on my 2016 Chevrolet Silverado myself?
If the issue is related to programming or reprogramming the immobilizer security code, it is recommended to have it done by a professional automotive technician or a dealership to ensure proper programming and security.
6. Are there any tips for preventing the Immobilizer Security Code Not Programmed problem on a 2016 Chevrolet Silverado?
To prevent this issue, always ensure that your key fob battery is in good condition, avoid exposing the key fob to extreme conditions, and consider having a spare key programmed for emergencies.
7. How much does it typically cost to repair OBDII code P1649 on a 2016 Chevrolet Silverado?
The cost of repairing this issue can vary depending on the specific cause and the labor rates of the repair shop. It is best to get a diagnostic assessment to determine the exact cost.
8. Can the Immobilizer Security Code Not Programmed problem affect the vehicle's overall performance?
While this issue mainly affects the starting and security systems of the vehicle, unresolved problems with the immobilizer can lead to performance issues if the engine is not allowed to start or run properly.
9. Is it safe to continue driving my 2016 Chevrolet Silverado with the Immobilizer Security Code Not Programmed issue?
It is not recommended to drive the vehicle with this issue unresolved, as it may lead to unexpected stalling or starting problems, which can compromise your safety and the security of the vehicle.
10. How long does it take to fix the Immobilizer Security Code Not Programmed problem on a 2016 Chevrolet Silverado?
The repair time can vary depending on the exact cause of the issue and the availability of parts. In some cases, it may be a quick fix, while in others, it may take more time to diagnose and repair the problem effectively.
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