B1845 GMC Code - Driver Seat Lumbar Down Switch Circuit
Quick Answer
The B1845 GMC code indicates a problem with the driver seat lumbar down switch circuit. Common causes include Damaged wiring or connectors in the lumbar support circuit, A faulty lumbar support switch, 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
- B1845 GMC indicates Driver Seat Lumbar Down Switch Circuit.
- Common causes
- Common causes include Damaged wiring or connectors in the lumbar support circuit, A faulty lumbar support switch, 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 B1845 GMC Description
The B1845 GMC code indicates a problem with the driver seat lumbar down switch circuit. This means that there is an issue with the electrical circuit that controls the lumbar support adjustment in the driver's seat. The lumbar support feature allows the driver to adjust the lower back support in the seat for added comfort and proper posture while driving.
Common Causes of B1845 GMC
- Damaged wiring or connectors in the lumbar support circuit.
- A faulty lumbar support switch.
- Blown fuse related to the lumbar support system.
- Malfunctioning control module responsible for the lumbar support adjustment.
- Wear and tear on the lumbar support mechanism itself.
Symptoms of B1845 GMC
- Inability to adjust the lumbar support in the driver's seat.
- Lumbar support adjustment not responding when the switch is activated.
- Unusual noises coming from the driver's seat when attempting to adjust the lumbar support.
- The lumbar support adjustment working intermittently or erratically.
How to Fix B1845 GMC
- Begin by inspecting the wiring and connectors in the lumbar support circuit for any signs of damage or corrosion. Repair or replace any damaged components as needed.
- Check the fuse related to the lumbar support system and replace it if necessary.
- Test the lumbar support switch for proper functionality and replace it if it is faulty.
- If the issue persists, diagnose the control module responsible for the lumbar support adjustment and replace it if it is malfunctioning.
- Finally, test the lumbar support system to ensure that the issue has been resolved and that the driver can adjust the lumbar support in the seat as intended.
Cost to Fix B1845 GMC
The typical repair costs for addressing the B1845 GMC code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Keep in mind that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the shop's labor rates. It is recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.
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Information for Specific GMC Models
- B1845 2014 GMC Sierra — Driver Seat Lumbar Down Switch Circuit
- B1845 2015 GMC Sierra — Driver Seat Lumbar Down Switch Circuit
- B1845 2016 GMC Sierra — Driver Seat Lumbar Down Switch Circuit
- B1845 2017 GMC Sierra — Driver Seat Lumbar Down Switch Circuit
- B1845 2018 GMC Sierra — Driver Seat Lumbar Down Switch Circuit
Frequently Asked Questions about B1845 GMC Code
1. What are the common symptoms of OBDII code B1845 GMC related to the Driver Seat Lumbar Down Switch Circuit?
- The common symptoms include the driver seat lumbar down switch not functioning properly or not responding at all.
2. What are the possible causes of OBDII code B1845 GMC?
- The code B1845 GMC is typically caused by a faulty driver seat lumbar down switch, wiring issues, or a malfunctioning control module.
3. How can I diagnose the issue causing OBDII code B1845 GMC?
- Diagnose the issue by checking the wiring connections to the driver seat lumbar down switch, testing the switch for continuity, and scanning the vehicle for other related trouble codes.
4. Can I repair OBDII code B1845 GMC on my own?
- If you have experience with automotive electrical systems, you can attempt to repair the issue by replacing the faulty switch, repairing damaged wiring, or resetting the control module.
5. Is it safe to continue driving with OBDII code B1845 GMC present?
- It is generally safe to continue driving with this code, but you may experience inconvenience due to the driver seat lumbar down switch not working.
6. How much does it typically cost to repair OBDII code B1845 GMC?
- The cost of repairing OBDII code B1845 GMC can vary depending on the underlying issue, but it may range from $50 to $200 for parts and labor.
7. Can a faulty driver seat lumbar down switch cause other issues in the vehicle?
- A faulty driver seat lumbar down switch may not directly cause other issues, but it can affect the comfort and convenience of the driver while operating the vehicle.
8. Will resetting the vehicle's computer system clear OBDII code B1845 GMC?
- Resetting the vehicle's computer system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return.
9. Are there any preventive measures to avoid OBDII code B1845 GMC in the future?
- Regularly inspecting and maintaining the driver seat lumbar down switch and its wiring can help prevent OBDII code B1845 GMC from occurring.
10. How long does it typically take to repair OBDII code B1845 GMC?
- The repair time for OBDII code B1845 GMC can vary depending on the complexity of the issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem.
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