AutoCodes – Generic – B3824

B3824 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 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.
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Code Popularity 1,169
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 17, 2020
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Code B3824 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 - Right Rear Window Relay Power Circuit - AutoCodes.com
B3824 Code - Right Rear Window Relay Power Circuit

What are the Possible Causes of the DTC B3824?

  • 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?

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 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 code?

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Need Help with the Code?

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Information for Specific Makes

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 Code

1. What does the OBDII code B3824 mean?

B3824 indicates an issue in the right rear window relay power circuit, typically involving a malfunction in the electrical connection or control of the window relay.

2. What are the common symptoms of code B3824?

Symptoms may include the right rear window not operating, intermittent window functionality, or no response when the window switch is pressed.

3. What causes the B3824 code to appear?

Common causes include a faulty right rear window relay, damaged wiring or connectors, a blown fuse, or a malfunctioning window switch.

4. How can I diagnose the B3824 code?

Start by inspecting the fuse and wiring for damage, test the right rear window relay for proper operation, and check the window switch for continuity.

5. Can a blown fuse trigger the B3824 code?

Yes, a blown fuse in the power supply circuit for the right rear window can trigger this code.

6. Is the right rear window the only one affected by the B3824 code?

Yes, this code specifically relates to the power circuit of the right rear window and does not affect other windows.

7. How do I fix the B3824 code?

Repairs may include replacing a faulty relay, repairing or replacing damaged wiring, replacing the window switch, or addressing a blown fuse.

8. Can a faulty window motor cause the B3824 code?

While uncommon, a malfunctioning window motor could potentially cause issues in the power circuit and trigger this code.

9. Is it safe to continue driving with the B3824 code active?

Yes, it is safe to drive, but you may lose functionality of the right rear window until the issue is resolved.

10. Do I need a professional to fix the B3824 code?

Simple repairs like replacing a fuse or relay can be done by most DIYers, but more complex electrical issues may require professional assistance.

Discuss the causes and fixes for B3824 OBDII Code

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