B1820 2016 GMC Sierra Code - Driver Seat Recline Rearward 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
- B1820 2016 GMC Sierra indicates Driver Seat Recline Rearward 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 B1820 2016 GMC Sierra Description
What are the Possible Causes of the DTC B1820 2016 GMC Sierra?
- 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 B1820 2016 GMC Sierra?
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 B1820 2016 GMC Sierra 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 B1820 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code B1820 in a 2016 GMC Sierra related to the driver seat recline rearward switch circuit?
The common symptoms include the driver seat recline rearward switch not functioning, the seat recline moving in unintended directions, or the seat recline controls becoming unresponsive.
2. What are the possible causes of OBDII code B1820 in a 2016 GMC Sierra?
The code B1820 can be triggered by a faulty driver seat recline rearward switch, damaged wiring or connectors in the circuit, or a malfunctioning control module.
3. How can I diagnose the issue causing OBDII code B1820 in my 2016 GMC Sierra?
You can start by visually inspecting the wiring and connectors for any visible damage. Using a multimeter, you can test the continuity and voltage in the circuit to identify the faulty component.
4. Can I repair the driver seat recline rearward switch circuit issue in my 2016 GMC Sierra myself?
If you have experience with automotive electrical systems and the necessary tools, you may be able to repair the issue yourself by replacing the faulty switch, repairing damaged wiring, or addressing any connector issues.
5. Is it safe to drive my 2016 GMC Sierra with OBDII code B1820 related to the driver seat recline rearward switch circuit?
It is not recommended to drive the vehicle with a malfunctioning driver seat recline rearward switch circuit as it can affect the driver's comfort and safety. It is best to address the issue promptly.
6. How much does it typically cost to repair OBDII code B1820 in a 2016 GMC Sierra at a professional auto repair shop?
The cost of repairing OBDII code B1820 can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
7. Can resetting the OBDII system clear the B1820 code in my 2016 GMC Sierra?
Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear after some time.
8. What precautions should I take when working on the driver seat recline rearward switch circuit in my 2016 GMC Sierra?
To avoid electrical hazards, always disconnect the battery before working on any electrical components. Additionally, follow proper safety procedures and refer to the vehicle's service manual for guidance.
9. Are there any recalls or technical service bulletins related to OBDII code B1820 in a 2016 GMC Sierra?
It is recommended to check with a GMC dealership or online resources for any recalls or technical service bulletins related to the driver seat recline rearward switch circuit issue in the 2016 Sierra.
10. How can I prevent OBDII code B1820 from reoccurring in my 2016 GMC Sierra after repairing the issue?
Regularly inspecting and maintaining the driver seat recline rearward switch circuit, avoiding excessive force when using the seat controls, and addressing any wiring or switch issues promptly can help prevent the code from reoccurring.
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