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Engine-Codes – GMC – B1815 GMC

B1815 GMC Code - Driver Seat Recline Forward Switch Circuit

Quick Answer

The B1815 GMC code indicates a problem with the driver seat recline forward switch circuit in the vehicle. Common causes include Damaged or corroded wiring in the driver seat recline forward switch circuit, Faulty recline forward switch, Loose or poor connections in the 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
B1815 GMC indicates Driver Seat Recline Forward Switch Circuit.
Common causes
Common causes include Damaged or corroded wiring in the driver seat recline forward switch circuit, Faulty recline forward switch, Loose or poor connections in the 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B1815 GMC Description

The B1815 GMC code indicates a problem with the driver seat recline forward switch circuit in the vehicle. This code specifically relates to the circuit that controls the forward movement of the driver's seat when adjusting the recline position. When this code is triggered, it means that the vehicle's onboard computer has detected an issue with the electrical circuit responsible for this function.

OBDII Code B1815 GMC - Driver Seat Recline Forward Switch Circuit
B1815 GMC Code - Driver Seat Recline Forward Switch Circuit

Common Causes of B1815 GMC

  1. Damaged or corroded wiring in the driver seat recline forward switch circuit.
  2. Faulty recline forward switch.
  3. Loose or poor connections in the circuit.
  4. Electrical interference or short circuit in the circuit.

Symptoms of B1815 GMC

  1. Inability to adjust the driver's seat forward.
  2. Unresponsive or erratic movement of the driver's seat when trying to recline forward.
  3. Illumination of the seat adjustment warning light on the dashboard.
  4. Audible clicking or buzzing noise when attempting to adjust the seat forward.

How to Fix B1815 GMC

  1. Begin by inspecting the wiring and connectors in the driver seat recline forward switch circuit for any signs of damage, corrosion, or loose connections.
  2. Test the recline forward switch for proper functionality using a multimeter to determine if it is faulty.
  3. Replace any damaged wiring, connectors, or the faulty switch component as needed.
  4. Clear the diagnostic trouble codes from the vehicle's computer using a scan tool to reset the system.
  5. Test the driver seat recline forward switch circuit to ensure that the issue has been resolved and that the seat can be adjusted forward smoothly.

Cost to Fix B1815 GMC

The typical repair costs for addressing the B1815 GMC code related to the driver seat recline forward switch circuit can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts and labor for this repair could range from $100 to $300. However, it is important to note that the actual cost may be higher or lower based on factors such as the location of the repair, the make and model of the vehicle, and the rates charged by the auto repair shop. It is recommended to obtain quotes from local shops to get a more accurate estimate for this repair.

What does this mean?

Tech Notes for B1815 GMC









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Information for Specific GMC Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1815 GMC Code

1. What are the common symptoms of OBDII code B1815 GMC?

The common symptoms of OBDII code B1815 GMC, which is related to the Driver Seat Recline Forward Switch Circuit, include issues with adjusting the driver seat's recline forward position.

2. What could cause OBDII code B1815 GMC to trigger?

OBDII code B1815 GMC is typically triggered by a fault in the driver seat recline forward switch circuit, such as a short circuit or an open circuit.

3. How can I diagnose the issue causing OBDII code B1815 GMC?

To diagnose the issue causing OBDII code B1815 GMC, you can start by checking the wiring and connections related to the driver seat recline forward switch. It's also recommended to inspect the switch itself for any signs of damage or malfunction.

4. Is it safe to continue driving with OBDII code B1815 GMC active?

While the driver seat recline forward switch circuit issue may not directly affect the vehicle's drivability, it is recommended to address the problem promptly to ensure the proper functioning of the seat adjustment feature.

5. What are some repair tips for fixing OBDII code B1815 GMC?

Repairing OBDII code B1815 GMC may involve repairing or replacing the driver seat recline forward switch, repairing any damaged wiring or connectors, or resetting the error code using an OBDII scanner.

6. Can OBDII code B1815 GMC be cleared without fixing the underlying issue?

While it is possible to clear OBDII code B1815 GMC using an OBDII scanner, it is important to address the root cause of the issue to prevent the code from reoccurring.

7. How much does it typically cost to repair OBDII code B1815 GMC?

The cost of repairing OBDII code B1815 GMC can vary depending on the extent of the issue and whether any parts need to be replaced. It is advisable to consult a professional mechanic for an accurate cost estimate.

8. Are there any common DIY fixes for OBDII code B1815 GMC?

Some common DIY fixes for OBDII code B1815 GMC may include checking and cleaning the connectors related to the driver seat recline forward switch or replacing the switch if it is visibly damaged.

9. Will OBDII code B1815 GMC cause the airbag light to illuminate?

In some cases, OBDII code B1815 GMC may cause the airbag light to illuminate if the seat adjustment issue is affecting the proper deployment of the airbag system. It is important to address the code promptly to ensure the safety systems are functioning correctly.

10. How long does it take to repair OBDII code B1815 GMC?

The time required to repair OBDII code B1815 GMC can vary depending on the specific issue and the expertise of the person performing the repair. In general, it may take anywhere from 30 minutes to a few hours to diagnose and fix the problem.

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