B1845 2017 Chevrolet Silverado Code - Driver Seat Lumbar Down Switch Circuit
Quick Answer
The B1845 diagnostic trouble code for a 2017 Chevrolet Silverado relates to the driver seat lumbar down switch circuit. Common causes include Faulty lumbar support switch, Wiring issues or short circuits in the circuit, 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
- B1845 2017 Chevrolet Silverado indicates Driver Seat Lumbar Down Switch Circuit.
- Common causes
- Common causes include Faulty lumbar support switch, Wiring issues or short circuits in the circuit, 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 B1845 2017 Chevrolet Silverado Description
The B1845 diagnostic trouble code for a 2017 Chevrolet Silverado relates to the driver seat lumbar down switch circuit. This code indicates that there is a malfunction in the circuit that controls the lumbar support adjustment feature of the driver's seat. The lumbar support is a feature that allows the driver to adjust the lower back support of the seat for added comfort and ergonomics. When this circuit is not functioning properly, it can lead to the inability to adjust the lumbar support, which can result in discomfort and potential ergonomic issues for the driver.
Common Causes of B1845 2017 Chevrolet Silverado
- Faulty lumbar support switch.
- Wiring issues or short circuits in the circuit.
- Blown fuse related to the lumbar support circuit.
- Defective lumbar support motor.
- Issues with the lumbar support control module.
Symptoms of B1845 2017 Chevrolet Silverado
- Inability to adjust the lumbar support of the driver's seat.
- Lumbar support adjustment only works intermittently.
- Lumbar support adjusts in one direction but not the other.
- Illumination of the seat adjustment control panel.
How to Fix B1845 2017 Chevrolet Silverado
- Begin by checking the lumbar support switch for proper functionality.
- Inspect the wiring and connections in the circuit for any damage or loose connections.
- Check the fuse related to the lumbar support circuit and replace if necessary.
- Test the lumbar support motor for proper operation and replace if faulty.
- If all components check out, consider the lumbar support control module as a potential culprit and replace if needed.
Cost to Fix B1845 2017 Chevrolet Silverado
The cost to repair a B1845 code for a driver seat lumbar down switch circuit on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. Generally, the cost of parts such as a lumbar support switch, wiring components, fuses, motor, or control module can range from $50 to $200. Labor costs typically range from $80 to $150 per hour, with the total repair time depending on the complexity of the issue. Therefore, the total repair costs for this issue could range from $150 to $500 or more. It's recommended to obtain a detailed quote from a reputable auto repair shop for a more accurate estimate.
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Frequently Asked Questions about B1845 2017 Chevrolet Silverado Code
1. What does OBDII code B1845 mean on a 2017 Chevrolet Silverado?
Code B1845 indicates an issue in the driver seat lumbar down switch circuit, which can prevent proper operation of the lumbar support adjustment.
2. What are common symptoms of the B1845 code?
Symptoms include the driver seat lumbar support not moving downward, limited lumbar adjustability, or no response when pressing the lumbar down switch.
3. What causes the B1845 code to appear?
Common causes include a faulty lumbar down switch, damaged wiring or connectors in the circuit, or a malfunctioning lumbar motor.
4. How can I diagnose the B1845 code?
Start by checking the lumbar down switch for proper function, inspect the wiring and connectors for damage or corrosion, and test the lumbar motor circuit for continuity.
5. Can I still drive with the B1845 code active?
Yes, the code does not affect the vehicle's drivability, but the lumbar support adjustment may not work, impacting comfort during driving.
6. How do I fix the B1845 code?
Repairs may involve replacing the lumbar down switch, repairing damaged wiring or connectors, or replacing the lumbar motor if it’s faulty.
7. How much does it cost to repair the B1845 code?
The cost depends on the specific repair needed but typically ranges from $100 to $300, including parts and labor.
8. Can a blown fuse cause the B1845 code?
A blown fuse is unlikely to specifically cause the B1845 code, but it’s still worth checking the seat control circuit fuse as part of the diagnosis.
9. Will clearing the B1845 code fix the issue?
Clearing the code without addressing the underlying issue will only temporarily remove it. The code will reappear if the problem persists.
10. Do I need professional help to fix the B1845 code?
While basic inspections like checking connections can be done at home, diagnosing and repairing electrical issues often require professional tools and expertise.
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