B2120 GMC Code - Power Seat Position Sensor Voltage
Quick Answer
The Power Seat Position Sensor that sets this Diagnostic Trouble Code (DTC) is either attached to the seat directional motor drive cable or directly to the motor it monitors. Common causes include Faulty Power Seat Position Sensor, Power Seat Position Sensor harness is open or shorted, Power Seat Position Sensor 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
- B2120 GMC indicates Power Seat Position Sensor Voltage.
- Common causes
- Common causes include Faulty Power Seat Position Sensor, Power Seat Position Sensor harness is open or shorted, Power Seat Position Sensor 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 B2120 GMC Description
What are the Possible Causes of the DTC B2120 GMC?
- Faulty Power Seat Position Sensor
- Power Seat Position Sensor harness is open or shorted
- Power Seat Position Sensor circuit poor electrical connection
- Faulty Memory Seat Module (MSM)
How to Fix the DTC B2120 GMC?
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 B2120 GMC 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 B2120 GMC Code
1. What are the common symptoms of OBDII code B2120 GMC related to the power seat position sensor voltage issue?
- Common symptoms include erratic seat movement, failure of the power seat to adjust properly, and warning lights on the dashboard.
2. What are the possible causes of OBDII code B2120 GMC indicating a power seat position sensor voltage problem?
- The main causes could be a faulty power seat position sensor, damaged wiring or connectors, or a malfunctioning power seat control module.
3. How can I diagnose the source of the power seat position sensor voltage problem indicated by OBDII code B2120 GMC?
- To diagnose the issue, you can use a diagnostic scanner to retrieve the specific trouble codes, inspect the wiring and connectors for any visible damage, and test the power seat position sensor for proper functionality.
4. Is it safe to continue driving my vehicle with OBDII code B2120 GMC triggered by the power seat position sensor voltage issue?
- It is generally safe to drive the vehicle with this code, but it is recommended to address the problem promptly to avoid any inconvenience or potential safety concerns related to the power seat function.
5. Can I repair the power seat position sensor voltage problem associated with OBDII code B2120 GMC by myself?
- If you have experience with automotive electrical systems and access to the necessary tools, you may be able to repair the issue yourself by replacing the faulty sensor or repairing any damaged wiring.
6. What are some tips for repairing the power seat position sensor voltage problem causing OBDII code B2120 GMC?
- Ensure you have the correct replacement part, follow the manufacturer's instructions for sensor replacement, and carefully inspect all related components for any additional issues.
7. How much does it typically cost to repair the power seat position sensor voltage problem indicated by OBDII code B2120 GMC at a professional auto repair shop?
- The cost can vary depending on the extent of the damage and the rates of the repair shop, but it may range from $100 to $300 for parts and labor.
8. Can resetting the OBDII system clear the B2120 GMC trouble code related to the power seat position sensor voltage issue?
- Resetting the OBDII system may temporarily clear the trouble code, but if the underlying issue causing the code is not addressed, it is likely to reappear.
9. Are there any preventive measures to avoid encountering OBDII code B2120 GMC due to power seat position sensor voltage problems in the future?
- Regularly inspecting the power seat components for signs of wear or damage, avoiding excessive force when adjusting the seat, and addressing any related issues promptly can help prevent this problem.
10. Will the power seat position sensor voltage problem indicated by OBDII code B2120 GMC affect the overall drivability of the vehicle?
- While the issue may not directly impact the drivability of the vehicle, it can affect the convenience and comfort of adjusting the power seat, which may be important for driver comfort and safety.
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