AutoCodesGMC – B2515 GMC

B2515 GMC Code - Steering Wheel Controls Illegal Resistance Value

Quick Answer

The Instrument Panel Cluster (IPC) monitors steering wheel control keys input at IPC. Common causes include Faulty Steering Wheel Control Keys, Steering Wheel Control Keys harness is open or shorted, Steering Wheel Control Keys 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
B2515 GMC indicates Steering Wheel Controls Illegal Resistance Value.
Common causes
Common causes include Faulty Steering Wheel Control Keys, Steering Wheel Control Keys harness is open or shorted, Steering Wheel Control Keys 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 898
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Dec 17, 2019
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Code B2515 GMC Description

The Instrument Panel Cluster (IPC) monitors steering wheel control keys input at IPC. The IPC interprets button commands, and sends an appropriate message on class 2 serial data line. DTC B2515 will set when IPC receives a value that is not within the resistance value range.
OBDII Code B2515 GMC - Steering Wheel Controls Illegal Resistance Value - AutoCodes.com
B2515 GMC Code - Steering Wheel Controls Illegal Resistance Value

What are the Possible Causes of the DTC B2515 GMC?

  • Faulty Steering Wheel Control Keys
  • Steering Wheel Control Keys harness is open or shorted
  • Steering Wheel Control Keys circuit poor electrical connection
  • Faulty Instrument Panel Cluster (IPC)

How to Fix the DTC B2515 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 B2515 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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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 B2515 GMC Code

1. What does the OBDII code B2515 mean on a GMC?

The B2515 code indicates an "Illegal Resistance Value" in the steering wheel controls, meaning the resistance in the steering wheel control circuit is outside the expected range.

2. What are the common symptoms of the B2515 code?

Common symptoms include non-functional steering wheel controls, such as volume or cruise control buttons, and potentially no response from the infotainment system.

3. What causes the B2515 code to appear?

This code can be caused by faulty steering wheel control buttons, damaged wiring in the control circuit, or a malfunctioning clock spring.

4. Can a bad clock spring trigger the B2515 code?

Yes, a faulty clock spring can disrupt the connection between the steering wheel controls and the vehicle's systems, leading to this code.

5. How do you diagnose the B2515 code?

Diagnosis involves using a scan tool to verify the code, inspecting the steering wheel control buttons, checking the wiring and connectors for damage, and testing the clock spring for continuity.

6. Is it safe to drive with the B2515 code?

Yes, it’s generally safe to drive, but steering wheel controls like audio or cruise control may not function, which could be inconvenient.

7. How can I fix the B2515 code on my GMC?

Repairs may include replacing faulty steering wheel control buttons, repairing or replacing damaged wiring, or replacing the clock spring if it's defective.

8. Can I clear the B2515 code without fixing the issue?

Clearing the code without addressing the underlying problem will likely result in the code returning, as the root cause remains unresolved.

9. How much does it cost to repair the B2515 code?

Repair costs can range from $50 to $500, depending on whether the issue is a simple wiring fix or requires replacing the clock spring or steering wheel controls.

10. Can a dead battery cause the B2515 code?

While unlikely, a dead or weak battery may cause electrical irregularities, so it’s worth checking the battery and charging system during diagnosis.

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