B1740 2016 Chevrolet Silverado Code - Driver Seat Front Down 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
- B1740 2016 Chevrolet Silverado indicates Driver Seat Front Down 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 B1740 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC B1740 2016 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 B1740 2016 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 B1740 2016 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 B1740 2016 Chevrolet Silverado Code
1. What does the OBDII code B1740 mean on a 2016 Chevrolet Silverado?
The code B1740 indicates an issue with the driver seat front down switch circuit, which controls the lowering movement of the front portion of the driver’s seat.
2. What are common symptoms of the B1740 code in a 2016 Silverado?
Symptoms include the front of the driver’s seat not adjusting properly, the seat motor not responding, or intermittent operation when trying to lower the seat.
3. What causes the B1740 code to appear?
The code can be triggered by a faulty seat adjustment switch, damaged wiring or connectors in the seat switch circuit, or a malfunctioning seat motor.
4. How can I fix the B1740 code on my Silverado?
Start by inspecting the seat adjustment switch, wiring, and connectors for damage or loose connections. Replace the faulty components as needed, and clear the code to see if the issue is resolved.
5. Can a blown fuse cause the B1740 code?
Yes, a blown fuse in the seat adjustment circuit can interrupt power to the driver seat front down switch, potentially triggering the code.
6. Is it safe to drive with the B1740 code present?
Yes, the vehicle is safe to drive, but the driver’s seat adjustment may not function correctly, potentially affecting comfort and driving ergonomics.
7. How do I diagnose the B1740 code on a 2016 Silverado?
Use a scan tool to confirm the code, then inspect the seat adjustment switch, wiring harness, and seat motor for visible damage or disconnections. Test the circuit with a multimeter if necessary.
8. Could a software issue cause the B1740 code?
While uncommon, a software malfunction in the body control module (BCM) could potentially contribute to this code. Updating or reprogramming the BCM may be required in rare cases.
9. How much does it cost to repair the B1740 code on a Silverado?
Repair costs vary depending on the issue. Replacing a seat adjustment switch may cost $50–$200, while addressing wiring or motor issues could cost more depending on labor.
10. Can I clear the B1740 code without fixing the issue?
You can clear the code using an OBDII scanner, but it will likely return if the underlying problem isn't resolved.
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