B1740 2018 GMC Sierra 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 2018 GMC Sierra 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 2018 GMC Sierra Description
What are the Possible Causes of the DTC B1740 2018 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 B1740 2018 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 B1740 2018 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.
Need more information about the B1740 2018 GMC Sierra code?
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Frequently Asked Questions about B1740 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code B1740 in a 2018 GMC Sierra related to the Driver Seat Front Down Switch Circuit?
- The common symptoms include the front driver seat unable to adjust down using the switch.
2. What could cause the OBDII code B1740 to trigger in a 2018 GMC Sierra?
- The code B1740 is typically triggered by a malfunction in the driver seat front down switch circuit, which may be caused by a faulty switch, wiring issue, or a problem with the seat control module.
3. How can I diagnose the issue causing OBDII code B1740 in my 2018 GMC Sierra?
- To diagnose the problem, you can start by checking the wiring connections to the front down switch, testing the switch itself for proper functionality, and inspecting the seat control module for any faults.
4. Can I repair the OBDII code B1740 issue in my 2018 GMC Sierra myself?
- Depending on your skill level and familiarity with automotive electrical systems, you may be able to repair the issue yourself by replacing the faulty switch, repairing any damaged wiring, or addressing issues with the seat control module.
5. Are there any tips for troubleshooting the OBDII code B1740 in a 2018 GMC Sierra?
- It's helpful to use a multimeter to test the continuity of the wiring, check for any loose connections, and consult the vehicle's wiring diagram to understand the circuit layout for the driver seat front down switch.
6. Will driving with the OBDII code B1740 present cause any safety concerns in my 2018 GMC Sierra?
- While the issue may not pose an immediate safety risk, it is recommended to address any OBDII codes promptly to ensure the proper functioning of the driver seat controls.
7. How much does it typically cost to repair OBDII code B1740 in a 2018 GMC Sierra at a dealership or auto repair shop?
- The cost of repair can vary depending on the extent of the issue and the labor rates of the repair facility. It's best to obtain a diagnosis and estimate from a trusted mechanic.
8. Can resetting the OBDII system clear the B1740 code in my 2018 GMC Sierra?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the B1740 code is not addressed, it is likely to reappear upon driving the vehicle.
9. Is the OBDII code B1740 specific to the 2018 GMC Sierra, or can it occur in other vehicle models?
- The B1740 code related to the driver seat front down switch circuit is specific to certain GMC Sierra models, but similar issues may occur in other vehicles with power seat controls.
10. What steps should I take if the OBDII code B1740 persists in my 2018 GMC Sierra after attempting repairs?
- If the code persists after attempting repairs, it may be necessary to seek further diagnostic assistance from a professional technician with experience in automotive electrical systems.
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