P1629 Buick Code - Theft Deterrent Start Enable Signal Not Received
Quick Answer
The Engine Control Module (ECM), the Powertrain Interface Module (PIM), and the Body Control Module (BCM) are an integral part of the vehicle theft deterrent system. Common causes include Deterrent key not programmed to vehicle, Faulty Deterrent key, Faulty ignition switch. 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
- P1629 Buick indicates Theft Deterrent Start Enable Signal Not Received.
- Common causes
- Common causes include Deterrent key not programmed to vehicle, Faulty Deterrent key, Faulty ignition switch.
- 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 P1629 Buick Description
1.When the ignition is turned ON or the door is unlocked by remote key the BCM and the key exchange security data to verify the correct key is used.
2.Once the correct key has been confirmed and the ignition is turned ON, the PIM and BCM exchange data to confirm the correct BCM and PIM are being used.
3.Once the correct key, BCM, and PIM are confirmed, the PIM and ECM exchange data to allow the vehicle to start.
4.The data exchange processes conducted use various encrypted data exchanges between each of the devices.
What are the Possible Causes of the DTC P1629 Buick?
- Deterrent key not programmed to vehicle
- Faulty Deterrent key
- Faulty ignition switch
- Poor electrical connection for Deterrent circuit components
How to Fix the DTC P1629 Buick?
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 P1629 Buick 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 P1629 Buick code?
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Need Help with the Code?
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Frequently Asked Questions about P1629 Buick Code
No Frequently Asked Questions about P1629 Buick Code found.
Discuss the causes and fixes for P1629 Buick OBDII Code
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With a P1629 code how long does it take to check all the possible causes for the car to not start
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Very difficult to say, it depends on the tech, the model and year of your vehicle. conditions of your vehicle.
I can try to find the more common cause that can trigger the P1629 code, what model and year is your vehicle?
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