AutoCodes – Cadillac – B2115 Cadillac

B2115 Cadillac 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
B2115 Cadillac 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.
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Code Popularity 595
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 17, 2019
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Code B2115 Cadillac Description

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. It receives a 5 V reference and ground from the Memory Seat Module (MSM). The sensor sends a voltage signal that varies with the movement of the seat through the signal circuit to the MSM. Then based on this voltage signal, the MSM determines the position of the seat. If the MSM sees the analog input from this sensor as either lower than 0.25 V or higher than 4.75 V, the sensor will be considered out of range and the MSM will set this DTC.
OBDII Code B2115 Cadillac - Power Seat Position Sensor Voltage - AutoCodes.com
B2115 Cadillac Code - Power Seat Position Sensor Voltage

What are the Possible Causes of the DTC B2115 Cadillac?

  • 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 B2115 Cadillac?

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 B2115 Cadillac 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 B2115 Cadillac code?

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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 B2115 Cadillac Code

1. What does the OBDII code B2115 mean for a Cadillac?

The B2115 code indicates a problem with the power seat position sensor, specifically a voltage issue detected by the vehicle's control module.

2. What are the common symptoms of a B2115 code on a Cadillac?

Symptoms may include the power seat not moving, limited seat adjustment functionality, or the seat not returning to its memory position.

3. What causes the B2115 Power Seat Position Sensor Voltage code?

Common causes include a faulty seat position sensor, damaged wiring or connectors, or issues with the seat control module.

4. Can I still drive my Cadillac with a B2115 code?

Yes, the vehicle is still drivable, but seat adjustment functionality may be compromised, which could affect comfort or safety.

5. How do I diagnose the B2115 code on my Cadillac?

Diagnosis involves checking the seat position sensor, inspecting wiring and connectors for damage, and testing the seat control module for proper operation.

6. How can I fix the B2115 code on a Cadillac?

Repairs may include replacing the seat position sensor, repairing or replacing damaged wiring, or reprogramming or replacing the seat control module if necessary.

7. How much does it cost to repair a B2115 code on a Cadillac?

Repair costs can vary but typically range from $150 to $500, depending on whether the sensor, wiring, or control module needs to be replaced.

8. Can a weak battery cause the B2115 code?

Yes, a weak or failing battery can sometimes cause voltage-related issues, which may trigger the B2115 code.

9. Do I need a professional to fix the B2115 code?

While some experienced DIYers can handle repairs, diagnosing and repairing this code may require professional tools and expertise.

10. Will clearing the B2115 code with a scanner fix the problem?

Clearing the code may temporarily reset it, but the underlying issue must be addressed to prevent the code from returning.

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