B1790 Buick Code - Driver Seat Motor Lumbar Circuit
Quick Answer
The B1790 Buick code refers to an issue with the driver seat motor lumbar circuit. Common causes include Damaged wiring in the lumbar support circuit, Faulty lumbar support motor, Blown fuse related to the lumbar support circuit. 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
- B1790 Buick indicates Driver Seat Motor Lumbar Circuit.
- Common causes
- Common causes include Damaged wiring in the lumbar support circuit, Faulty lumbar support motor, Blown fuse related to the lumbar support circuit.
- 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 B1790 Buick Description
The B1790 Buick code refers to an issue with the driver seat motor lumbar circuit. This code indicates that there is a malfunction in the circuit that controls the lumbar support feature of the driver's seat in a Buick vehicle. The lumbar support feature allows the driver to adjust the lower back support to achieve a more comfortable driving position. When this circuit malfunctions, it can lead to the lumbar support feature not functioning properly or not working at all.
Common Causes of B1790 Buick
- Damaged wiring in the lumbar support circuit.
- Faulty lumbar support motor.
- Blown fuse related to the lumbar support circuit.
- Malfunctioning control module.
- Water damage or corrosion affecting the circuit connections.
Symptoms of B1790 Buick
- Inability to adjust the lumbar support in the driver's seat.
- Lumbar support adjusting on its own without input from the driver.
- Lumbar support adjustment buttons not responding.
- Strange noises coming from the seat when attempting to adjust the lumbar support.
- Uneven or uncomfortable lumbar support while driving.
How to Fix B1790 Buick
- Begin by diagnosing the specific cause of the issue using a diagnostic scanner to read the fault codes and perform electrical testing.
- Inspect the wiring harness for any visible damage or corrosion and repair or replace as necessary.
- Test the lumbar support motor to ensure it is functioning correctly and replace if faulty.
- Check and replace any blown fuses related to the lumbar support circuit.
- If the issue persists, replace the control module responsible for the lumbar support function.
Cost to Fix B1790 Buick
The cost of repairing the B1790 Buick code related to the driver seat motor lumbar circuit can vary depending on the specific cause of the issue and the parts needed for the repair. On average, the repair costs can range from $150 to $500, including parts and labor. However, it's important to note that labor rates can vary between auto repair shops, with rates typically ranging from $80 to $150 per hour. Factors such as location, vehicle make and model, and engine type can also impact the overall repair costs. It's recommended to consult with a professional mechanic to get a more accurate estimate based on the specific circumstances of the vehicle in question.
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Frequently Asked Questions about B1790 Buick Code
1. What are the common symptoms of OBDII code B1790 in a Buick related to the Driver Seat Motor Lumbar Circuit?
The common symptoms include the inability to adjust the lumbar support in the driver's seat, a non-responsive lumbar motor, or erratic movement of the lumbar support.
2. What are the possible causes of OBDII code B1790 in a Buick related to the Driver Seat Motor Lumbar Circuit?
Possible causes include a faulty lumbar motor, damaged wiring or connectors in the lumbar circuit, a blown fuse, or a malfunctioning lumbar control switch.
3. How can I diagnose OBDII code B1790 in a Buick related to the Driver Seat Motor Lumbar Circuit?
Diagnosis involves checking the lumbar motor for proper functionality, inspecting the wiring and connectors for any damage, testing the fuse related to the lumbar circuit, and verifying the operation of the lumbar control switch.
4. What are some repair tips for fixing OBDII code B1790 in a Buick related to the Driver Seat Motor Lumbar Circuit?
Repair tips include replacing a faulty lumbar motor, repairing or replacing damaged wiring and connectors, checking and replacing a blown fuse, and servicing or replacing the lumbar control switch if needed.
5. Can I reset OBDII code B1790 in a Buick related to the Driver Seat Motor Lumbar Circuit without fixing the underlying issue?
While you can clear the code with an OBDII scanner, it is important to address the root cause of the problem to prevent the code from reappearing and ensure the proper functioning of the driver's seat lumbar support.
6. Is it safe to continue driving with OBDII code B1790 in a Buick related to the Driver Seat Motor Lumbar Circuit?
It is generally safe to drive with this code, but if the driver's seat lumbar support is not functioning correctly, it may affect your comfort and posture while driving, so it is advisable to address the issue promptly.
7. How much does it typically cost to repair OBDII code B1790 in a Buick related to the Driver Seat Motor Lumbar Circuit?
The cost of repair can vary depending on the specific cause of the issue, but it may involve expenses for parts such as a new lumbar motor, wiring repairs, or fuse replacement, as well as labor costs if professional help is needed.
8. Can a DIY enthusiast fix OBDII code B1790 in a Buick related to the Driver Seat Motor Lumbar Circuit?
DIY enthusiasts with some automotive knowledge and tools may be able to diagnose and repair this issue themselves, especially if it involves tasks like replacing a fuse or checking and repairing wiring connections.
9. Are there any recalls or service bulletins related to OBDII code B1790 in a Buick related to the Driver Seat Motor Lumbar Circuit?
It is advisable to check with Buick or your local dealership to see if there are any recalls or service bulletins related to this specific OBDII code, as they may provide useful information or assistance with the repair.
10. How can I prevent OBDII code B1790 in a Buick related to the Driver Seat Motor Lumbar Circuit from occurring again in the future?
Regularly checking and maintaining the driver's seat lumbar support system, avoiding putting excessive pressure on the lumbar motor, and addressing any issues promptly can help prevent this OBDII code from reoccurring.
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