AutoCodes – Cadillac – B2533 Cadillac

B2533 Cadillac Code - Lamp Relay Control Circuit Is Shorted To Battery Positive Voltage

Quick Answer

The Fog Lamp Relay is controlled by the Body Control Module (BCM). Common causes include Faulty Fog Lamp Relay, Fog Lamp Relay harness is open or shorted, Fog Lamp Relay 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: B2533 Cadillac indicates Lamp Relay Control Circuit Is Shorted To Battery Positive Voltage.
Common causes: Common causes include Faulty Fog Lamp Relay, Fog Lamp Relay harness is open or shorted, Fog Lamp Relay 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 481

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B2533 Cadillac Description

The Fog Lamp Relay is controlled by the Body Control Module (BCM). Battery positive voltage is applied to the coil side of the fog lamp relay. The BCM grounds the fog lamp relay control circuit in order to turn on the fog lamp relay. When the fog lamp relay control circuit becomes shorted to battery positive voltage, DTC B2533 is set.

OBDII Code B2533 Cadillac - Lamp Relay Control Circuit Is Shorted To Battery Positive Voltage - AutoCodes.com — B2533 Cadillac Code - Lamp Relay Control Circuit Is Shorted To Battery Positive Voltage

What does this mean?

What are the Possible Causes of the DTC B2533 Cadillac?

Faulty Fog Lamp Relay
Fog Lamp Relay harness is open or shorted
Fog Lamp Relay circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2533 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 B2533 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 B2533 Cadillac code?

Need more information on how to fix the B2533 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2533 Cadillac code diagnosed by a professional: Find a repair shop in your area

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 Cadillac Code

1. What are the common symptoms of OBDII code B2533 in a Cadillac?

- Common symptoms include illuminated warning lights on the dashboard, flickering or dimming lights, and malfunctioning exterior lamps.

2. What can cause the Lamp Relay Control Circuit to be shorted to battery positive voltage in a Cadillac?

- Possible causes can include a faulty lamp relay, wiring issues, short circuits, or a malfunctioning body control module.

3. How serious is the issue related to OBDII code B2533 in a Cadillac?

- While the issue itself may not affect the drivability of the vehicle, it can lead to safety concerns due to malfunctioning exterior lamps.

4. How can I diagnose the Lamp Relay Control Circuit shorted to battery positive voltage in my Cadillac?

- A thorough inspection of the lamp relay, wiring harness, and body control module is recommended. Using a multimeter to test for voltage and continuity can help pinpoint the issue.

5. What are some repair tips for resolving OBDII code B2533 in a Cadillac?

- Repair tips include checking and replacing the faulty lamp relay, repairing any damaged wiring, and resetting the fault codes after the issue is resolved.

6. Can I drive my Cadillac with the Lamp Relay Control Circuit issue?

- It is not recommended to drive the vehicle with malfunctioning exterior lamps as it can compromise visibility and safety on the road.

7. How much does it typically cost to repair OBDII code B2533 in a Cadillac?

- The cost of repair can vary depending on the specific issue, but it may involve replacing a faulty relay, repairing wiring, or reprogramming the body control module. Costs can range from $100 to $500 or more.

8. Are there any recalls or technical service bulletins related to OBDII code B2533 in Cadillacs?

- It is advisable to check with a Cadillac dealership or online resources for any relevant recalls or technical service bulletins related to this specific OBDII code.

9. Can I clear the B2533 fault code on my Cadillac without fixing the issue?

- While you can clear the fault code temporarily, it is important to address the underlying issue causing the code to prevent safety risks and ensure proper functionality of the exterior lamps.

10. How can I prevent the Lamp Relay Control Circuit from shorting to battery positive voltage in my Cadillac in the future?

- Regular maintenance checks, timely replacement of worn-out components, and addressing any electrical issues promptly can help prevent similar faults in the future.