AutoCodes – Cadillac – B3824 Cadillac

B3824 Cadillac Code - Right Rear Window Relay Power Circuit

Quick Answer

Battery positive voltage is supplied to the right rear power window switch and the up and down relays through the window lockout signal circuit. Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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
B3824 Cadillac indicates Right Rear Window Relay Power Circuit.
Common causes
Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 478
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 17, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code B3824 Cadillac Description

Battery positive voltage is supplied to the right rear power window switch and the up and down relays through the window lockout signal circuit. If the window lockout function is disabled, the Body Control Module (BCM) supplies battery positive voltage to the switch and relays and the right window operates normally. If the window lockout function is enabled, the BCM will not supply battery positive voltage to the switch and relays and the right rear window will be inoperative unless it is operated from the driver power window switch.
OBDII Code B3824 Cadillac - Right Rear Window Relay Power Circuit - AutoCodes.com
B3824 Cadillac Code - Right Rear Window Relay Power Circuit

What are the Possible Causes of the DTC B3824 Cadillac?

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

How to Fix the DTC B3824 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 B3824 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 B3824 Cadillac code?

Need more information on how to fix the B3824 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3824 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 B3824 Cadillac Code

1. What does the OBDII code B3824 mean on a Cadillac?

The code B3824 indicates an issue with the Right Rear Window Relay Power Circuit, suggesting a fault in the electrical system controlling the rear passenger window.

2. What are the common symptoms of the B3824 code on a Cadillac?

Symptoms include the right rear window not functioning, intermittent operation, or being stuck in a closed or open position.

3. What causes the B3824 code to appear on a Cadillac?

Common causes include a faulty window relay, damaged wiring or connectors, a malfunctioning window motor, or a failed switch.

4. Can I still drive my Cadillac with the B3824 code active?

Yes, you can drive the vehicle, but the right rear window may not function properly, which could be inconvenient or affect ventilation.

5. How do you diagnose the B3824 code on a Cadillac?

Diagnosis involves checking the window relay, inspecting the wiring and connectors for damage, and testing the window motor and switch for proper operation.

6. How do you fix the B3824 code on a Cadillac?

Repairs may involve replacing the window relay, repairing or replacing damaged wiring, or replacing the window motor or switch if they are faulty.

7. Can a blown fuse cause the B3824 code on a Cadillac?

Yes, a blown fuse in the circuit powering the right rear window relay can trigger this code and should be checked during diagnosis.

8. How much does it cost to fix the B3824 code on a Cadillac?

Repair costs depend on the exact issue but typically range from $100 to $500, depending on whether parts like the relay, motor, or wiring need replacement.

9. Can I reset the B3824 code without repairing the issue?

Resetting the code without addressing the underlying problem may temporarily clear it, but the code will likely return if the issue persists.

10. How can I prevent the B3824 code from recurring on my Cadillac?

Regularly inspect and maintain the electrical components of the window system, and address any signs of wear or damage promptly.

Discuss the causes and fixes for B3824 Cadillac OBDII Code

Code B3824 Cadillac comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play