B1840 2017 Chevrolet Silverado Code - Driver Seat Lumbar Up Switch Circuit
Quick Answer
The B1840 diagnostic trouble code for a 2017 Chevrolet Silverado specifically pertains to the driver seat lumbar up switch circuit. Common causes include Faulty lumbar up switch, Wiring issues in the lumbar support circuit, Blown fuse related to the lumbar support 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
- B1840 2017 Chevrolet Silverado indicates Driver Seat Lumbar Up Switch Circuit.
- Common causes
- Common causes include Faulty lumbar up switch, Wiring issues in the lumbar support circuit, Blown fuse related to the lumbar support 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 B1840 2017 Chevrolet Silverado Description
The B1840 diagnostic trouble code for a 2017 Chevrolet Silverado specifically pertains to the driver seat lumbar up switch circuit. This code indicates that there is a malfunction in the electrical circuit that controls the driver seat's lumbar support system, specifically the switch that adjusts the lumbar support upwards. The lumbar support system is designed to provide additional lower back support for the driver, enhancing comfort and reducing fatigue during long drives.
Common Causes of B1840 2017 Chevrolet Silverado
- Faulty lumbar up switch
- Wiring issues in the lumbar support circuit
- Blown fuse related to the lumbar support system
- Malfunctioning lumbar support motor
- Electronic control module (ECM) failure
Symptoms of B1840 2017 Chevrolet Silverado
- Inability to adjust the driver seat lumbar support upwards
- Stuck or non-functional lumbar support
- Uncomfortable driving position due to lack of lumbar support
- Warning light on the dashboard indicating an issue with the driver seat lumbar support
How to Fix B1840 2017 Chevrolet Silverado
- Begin by conducting a visual inspection of the lumbar up switch and the wiring connected to it to check for any visible damage or loose connections.
- Use a multimeter to test the continuity of the switch and the wiring to identify any faulty components.
- Replace the lumbar up switch if it is determined to be the source of the problem.
- Check and replace any blown fuses related to the lumbar support system.
- If the issue persists, consult a professional mechanic to diagnose potential ECM or motor failures and proceed with the necessary repairs.
Cost to Fix B1840 2017 Chevrolet Silverado
The typical repair costs for addressing a B1840 code in a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. Replacement parts such as a new lumbar up switch or fuses may range from $50 to $150, while labor costs can add an additional $100 to $200. Overall, the total repair cost for this issue could range from $150 to $350. It's important to note that these estimates are rough averages and actual costs may vary based on location, labor rates, and the extent of the repairs needed.
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Frequently Asked Questions about B1840 2017 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code B1840 in a 2017 Chevrolet Silverado?
The common symptoms include inoperative driver seat lumbar up switch, erratic seat movement, or total loss of control over the lumbar support.
2. What are the possible causes of OBDII code B1840 in a 2017 Chevrolet Silverado?
Possible causes include a faulty driver seat lumbar up switch, damaged wiring or connectors in the circuit, or a malfunctioning seat control module.
3. How can I diagnose the issue related to OBDII code B1840 in my 2017 Chevrolet Silverado?
You can diagnose the problem by checking the wiring and connectors for any visible damage, testing the driver seat lumbar up switch for continuity, and using a scan tool to communicate with the seat control module for fault codes.
4. Is it safe to continue driving with OBDII code B1840 present in a 2017 Chevrolet Silverado?
It is generally safe to continue driving, but you may experience discomfort due to the loss of lumbar support adjustment. It is recommended to address the issue promptly to ensure driving comfort.
5. Can I repair OBDII code B1840 in a 2017 Chevrolet Silverado myself?
If you have experience with automotive electrical systems and access to the necessary tools, you may be able to repair the issue yourself by replacing the faulty lumbar up switch or repairing damaged wiring. However, professional assistance is recommended for accurate diagnosis and repair.
6. How much does it typically cost to fix OBDII code B1840 in a 2017 Chevrolet Silverado?
The cost of fixing OBDII code B1840 can vary depending on the exact cause of the issue. Repair costs may range from a few hundred to a thousand dollars, including parts and labor.
7. Can resetting the OBDII system clear the B1840 code in a 2017 Chevrolet Silverado?
Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return. It is important to diagnose and repair the root cause of the problem to prevent code recurrence.
8. Will OBDII code B1840 affect the overall performance of my 2017 Chevrolet Silverado?
OBDII code B1840 is related specifically to the driver seat lumbar up switch circuit and should not affect the overall performance of the vehicle. However, it can impact the comfort and convenience of adjusting the lumbar support.
9. How long does it typically take to repair OBDII code B1840 in a 2017 Chevrolet Silverado?
The repair time can vary depending on the exact cause of the issue and the complexity of the repair. In general, it may take a few hours to a full day to diagnose and fix the problem.
10. Is there a recall or technical service bulletin related to OBDII code B1840 in the 2017 Chevrolet Silverado?
It is recommended to check with a Chevrolet dealership or refer to the National Highway Traffic Safety Administration (NHTSA) website to determine if there are any recalls or technical service bulletins related to OBDII code B1840 in the 2017 Chevrolet Silverado.
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