B1840 2015 Chevrolet Silverado Code - Driver Seat Lumbar Up Switch Circuit
Quick Answer
The Seat Memory Control Module supplies a reference voltage to each signal circuit of the Driver Seat Adjuster Switch. Common causes include Faulty Driver Seat Adjuster Switch, Driver Seat Adjuster Switch harness is open or shorted, Driver Seat Adjuster Switch circuit poor electrical connection. 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 2015 Chevrolet Silverado indicates Driver Seat Lumbar Up Switch Circuit.
- Common causes
- Common causes include Faulty Driver Seat Adjuster Switch, Driver Seat Adjuster Switch harness is open or shorted, Driver Seat Adjuster Switch circuit poor electrical connection.
- 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 B1840 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC B1840 2015 Chevrolet Silverado?
- Faulty Driver Seat Adjuster Switch
- Driver Seat Adjuster Switch harness is open or shorted
- Driver Seat Adjuster Switch circuit poor electrical connection
- Faulty Seat Memory Control Module
How to Fix the DTC B1840 2015 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 B1840 2015 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.
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Frequently Asked Questions about B1840 2015 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code B1840 in a 2015 Chevrolet Silverado related to the Driver Seat Lumbar Up Switch Circuit?
The common symptoms include the driver seat lumbar up switch not functioning properly, the seat lumbar support not adjusting as intended, or the seat lumbar support getting stuck in one position.
2. What are the possible causes of OBDII code B1840 in a 2015 Chevrolet Silverado?
The code B1840 can be triggered by issues such as a faulty driver seat lumbar up switch, damaged wiring or connectors in the circuit, a blown fuse, or a malfunction in the seat control module.
3. How can I diagnose the OBDII code B1840 in my 2015 Chevrolet Silverado?
To diagnose the code B1840, you can start by visually inspecting the seat lumbar up switch and its wiring for any visible damage. Using a multimeter, you can test the switch for continuity and check the circuit for any shorts or open circuits.
4. Can I repair OBDII code B1840 in a 2015 Chevrolet Silverado on my own?
Repairing the code B1840 may involve replacing the defective driver seat lumbar up switch, repairing damaged wiring or connectors, or resetting the seat control module. If you are comfortable with automotive electrical work, you may be able to repair it yourself.
5. Is it safe to continue driving my 2015 Chevrolet Silverado with OBDII code B1840 related to the Driver Seat Lumbar Up Switch Circuit?
It is not recommended to drive the vehicle with unresolved OBDII code B1840, as it can affect the driver's comfort and safety by preventing proper adjustment of the seat lumbar support. It is best to address the issue promptly.
6. How much does it typically cost to repair OBDII code B1840 in a 2015 Chevrolet Silverado?
The cost of repairing OBDII code B1840 can vary depending on the specific cause of the issue. Replacing a faulty switch or repairing wiring may cost anywhere from $50 to $200, while replacing the seat control module can be more expensive.
7. Will resetting the OBDII code B1840 in my 2015 Chevrolet Silverado make it go away permanently?
Resetting the code B1840 may temporarily clear the error code, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem to prevent the code from returning.
8. Can extreme temperatures or rough driving conditions trigger OBDII code B1840 in a 2015 Chevrolet Silverado?
Extreme temperatures or rough driving conditions can potentially exacerbate existing issues that lead to code B1840, such as causing loose connections or damaging wiring. It is important to address any underlying problems to prevent further issues.
9. Are there any recalls or technical service bulletins related to OBDII code B1840 in a 2015 Chevrolet Silverado?
It is recommended to check with a Chevrolet dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls or technical service bulletins related to OBDII code B1840 in your specific vehicle.
10. Can OBDII code B1840 in a 2015 Chevrolet Silverado affect other electrical systems in the vehicle?
While OBDII code B1840 specifically pertains to the Driver Seat Lumbar Up Switch Circuit, electrical issues in one part of the vehicle can sometimes cause ripple effects on other systems. It is important to address and resolve the code B1840 to prevent potential impact on other electrical systems.
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