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Engine-Codes – Generic – B2533

B2533 Code - Right Rear Stop Lamp Circuit Failure

Quick Answer

The B2533 code indicates a failure in the right rear stop lamp circuit. Common causes include Faulty brake light bulb, Damaged wiring harness, Malfunctioning brake light switch. 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
B2533 indicates Right Rear Stop Lamp Circuit Failure.
Common causes
Common causes include Faulty brake light bulb, Damaged wiring harness, Malfunctioning brake light switch.
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 09, 2024
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Code B2533 Description

The B2533 code indicates a failure in the right rear stop lamp circuit. This means that there is an issue with the electrical circuit that controls the right rear brake light on the vehicle. When this code is triggered, it can cause the brake light to fail to illuminate when the brake pedal is pressed, which can be a safety hazard as it reduces the visibility of the vehicle to other drivers on the road.

OBDII Code B2533 - Right Rear Stop Lamp Circuit Failure
B2533 Code - Right Rear Stop Lamp Circuit Failure

Common Causes of B2533

  1. Faulty brake light bulb.
  2. Damaged wiring harness.
  3. Malfunctioning brake light switch.
  4. Defective control module.
  5. Corrosion or loose connections in the electrical system.

Symptoms of B2533

  1. Right rear brake light not illuminating when the brake pedal is pressed.
  2. Warning light on the dashboard indicating a brake light failure.
  3. Other drivers signaling that the right rear brake light is not working.
  4. Reduced visibility of the vehicle when braking, especially at night or in low visibility conditions.

How to Fix B2533

  1. Begin by visually inspecting the right rear brake light bulb to check for any signs of damage or burning out. Replace the bulb if necessary.
  2. Inspect the wiring harness for any visible damage or corrosion. Repair or replace any damaged wires.
  3. Test the brake light switch to ensure it is functioning correctly. Replace the switch if it is faulty.
  4. Use a multimeter to test the continuity of the circuit and the control module. Replace any components that are not functioning properly.
  5. Clear the diagnostic code from the vehicle's system and test the right rear stop lamp to ensure it is now working correctly.

Cost to Fix B2533

The typical repair costs for a B2533 code can vary depending on the specific cause of the issue and the vehicle's make and model. In general, the cost of replacing a brake light bulb can range from $5 to $20, while repairing or replacing a wiring harness or brake light switch can cost between $50 and $200. If the control module needs to be replaced, the cost can range from $100 to $500. Labor costs can add an additional $80 to $150 per hour, depending on the shop's rates and location. It's advisable to consult with a professional mechanic to get an accurate estimate for the repair.

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Code B2533 Information for Specific Makes

  • B2533 Buick — Lamp Relay Control Circuit Is Shorted To Battery Positive Voltage
  • B2533 Cadillac — Lamp Relay Control Circuit Is Shorted To Battery Positive Voltage
  • B2533 Chevrolet — Lamp Relay Control Circuit Is Shorted To Battery Positive Voltage
  • B2533 GMC — Lamp Relay Control Circuit Is Shorted To Battery Positive Voltage
  • B2533 Lexus — Package Tray Switch No. 2 Malfunction
  • B2533 Pontiac — Lamp Relay Control Circuit Is Shorted To Battery Positive Voltage
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 B2533 Code

1. What are common symptoms of OBDII code B2533 (Right Rear Stop Lamp Circuit Failure)?

The common symptoms include a malfunctioning right rear stop lamp, brake lights not working properly, and the illumination of the check engine light.

2. What are the possible causes of OBDII code B2533?

Possible causes of this code include a faulty right rear stop lamp bulb, damaged wiring or connectors in the circuit, a defective stop lamp switch, or a problem with the Body Control Module (BCM).

3. How can I diagnose the right rear stop lamp circuit failure?

You can start by visually inspecting the right rear stop lamp bulb and its connections. Use a multimeter to check for continuity in the wiring and test the stop lamp switch. If needed, consult a professional for a more thorough diagnosis.

4. Can I still drive my vehicle with OBDII code B2533?

While it may be possible to drive with this code, it is not recommended as it compromises your safety on the road. The malfunctioning stop lamp can lead to accidents due to lack of proper signaling to other drivers.

5. How do I repair OBDII code B2533?

To repair this code, you may need to replace the right rear stop lamp bulb if it's faulty, repair any damaged wiring or connectors, replace the stop lamp switch if necessary, or address any issues with the Body Control Module by consulting a professional.

6. Will resetting the OBDII code B2533 turn off the check engine light?

Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not fixed, the code will likely reappear, and the light will illuminate again. It is essential to address the root cause of the problem.

7. Can a DIY enthusiast fix OBDII code B2533 at home?

Depending on your skill level and access to tools, you may be able to perform some basic checks and repairs at home. However, for more complex issues like BCM problems, it's recommended to seek assistance from a qualified mechanic.

8. Is OBDII code B2533 specific to a certain vehicle make or model?

While this code is related to a right rear stop lamp circuit failure, it can occur in various vehicle makes and models that are equipped with OBDII systems. The diagnostic and repair process may vary slightly depending on the specific vehicle.

9. What are the safety implications of ignoring OBDII code B2533?

Ignoring this code can pose significant safety risks as other drivers may not be alerted when you apply the brakes. This can increase the likelihood of rear-end collisions or other accidents, making it crucial to address the issue promptly.

10. How much does it typically cost to repair OBDII code B2533?

The cost of repairing this code can vary based on the underlying cause of the issue, the vehicle make and model, and labor rates in your area. Simple fixes like bulb replacement may be inexpensive, while more complex repairs could be pricier.

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