B1935 GMC Code - Left Seat Back Heater Circuit
Quick Answer
When the heated seat function is active, the Memory Seat Module (MSM) supplies battery voltage through the element supply voltage circuit to the seat heater elements. Common causes include Faulty Left Seat Back Heater Element, Left Seat Back Heater Element harness is open or shorted, Left Seat Back Heater Element 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
- B1935 GMC indicates Left Seat Back Heater Circuit.
- Common causes
- Common causes include Faulty Left Seat Back Heater Element, Left Seat Back Heater Element harness is open or shorted, Left Seat Back Heater Element 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 B1935 GMC Description
What are the Possible Causes of the DTC B1935 GMC?
- Faulty Left Seat Back Heater Element
- Left Seat Back Heater Element harness is open or shorted
- Left Seat Back Heater Element circuit poor electrical connection
- Faulty Memory Seat Module (MSM)
How to Fix the DTC B1935 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.
Code Tech Notes
B1935 0A: Left Seat Back Heater Circuit Rate of Change Below Threshold
B1935 0B: Left Seat Back Heater Circuit Current Above Threshold
B1935 0C: Left Seat Back Heater Circuit Current Below Threshold
B1935 0D: Left Seat Back Heater Circuit Resistance Above Threshold
B1935 0E: Left Seat Back Heater Circuit Resistance Below Threshold
B1935 1F: Left Seat Back Heater Circuit Intermittent
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1935 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 B1935 GMC Code
1. What are the common symptoms of OBDII code B1935 GMC (Left Seat Back Heater Circuit)?
- The common symptoms include a non-functioning left seat back heater, illuminated airbag warning light, and potential issues with the seat's heating system.
2. What are the possible causes of OBDII code B1935 GMC?
- The code B1935 GMC may be caused by a faulty seat back heater element, damaged wiring or connectors, a blown fuse, or a malfunctioning seat control module.
3. How can I diagnose the issue related to OBDII code B1935 GMC?
- You can diagnose the issue by checking the seat back heater element for continuity, inspecting the wiring and connectors for any damage, testing the fuse related to the seat heater circuit, and scanning the seat control module for error codes.
4. Can I repair OBDII code B1935 GMC on my own?
- If you have experience working with automotive electrical systems, you may be able to repair the issue on your own by replacing the faulty seat back heater element, repairing any damaged wiring, or resetting the seat control module.
5. Is it safe to drive with OBDII code B1935 GMC present?
- While the code B1935 GMC itself does not pose a direct safety risk, it is recommended to address the issue promptly to ensure the proper functioning of the seat back heater system and to avoid potential complications.
6. How much does it typically cost to repair OBDII code B1935 GMC?
- The cost of repairing OBDII code B1935 GMC can vary depending on the specific cause of the issue, but it may range from a few hundred dollars for DIY repairs to over a thousand dollars if professional assistance is required.
7. Can OBDII code B1935 GMC affect other systems in the vehicle?
- While the code B1935 GMC specifically relates to the left seat back heater circuit, it is always recommended to address any OBDII codes promptly to prevent potential issues from affecting other vehicle systems.
8. How long does it take to fix OBDII code B1935 GMC?
- The time needed to fix OBDII code B1935 GMC can vary based on the complexity of the issue and your experience level. Simple repairs may take a few hours, while more involved repairs could take longer.
9. Are there any preventive measures to avoid OBDII code B1935 GMC in the future?
- To prevent OBDII code B1935 GMC from occurring in the future, you can perform regular maintenance checks on the seat heating system, avoid overloading the electrical circuits, and ensure all wiring and connectors are in good condition.
10. Can weather conditions impact the occurrence of OBDII code B1935 GMC?
- Extreme weather conditions, such as extreme cold or heat, can sometimes exacerbate issues related to OBDII code B1935 GMC due to the strain they put on the seat heating system components.
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