AutoCodes – Cadillac – B2624 Cadillac

B2624 Cadillac Code - Display Dimming Signal Circuit

Quick Answer

The Body Control Module (BCM) directly sends a reference voltage to the Instrument Panel (I/P) Dimmer Switch which is then reduced based on the I/P Dimmer Switch position and monitored as a signal to the BCM. Common causes include Faulty Headlamp and Panel Dimmer Switch, Headlamp and Panel Dimmer Switch harness is open or shorted, Headlamp and Panel Dimmer Switch 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: B2624 Cadillac indicates Display Dimming Signal Circuit.
Common causes: Common causes include Faulty Headlamp and Panel Dimmer Switch, Headlamp and Panel Dimmer Switch harness is open or shorted, Headlamp and Panel Dimmer Switch 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 560

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 09, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2624 Cadillac Description

OBDII Code B2624 Cadillac - Display Dimming Signal Circuit - AutoCodes.com — B2624 Cadillac Code - Display Dimming Signal Circuit

What does this mean?

What are the Possible Causes of the DTC B2624 Cadillac?

Faulty Headlamp and Panel Dimmer Switch
Headlamp and Panel Dimmer Switch harness is open or shorted
Headlamp and Panel Dimmer Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2624 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 B2624 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 B2624 Cadillac code?

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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 B2624 Cadillac Code

1. What are the common symptoms of OBDII code B2624 in a Cadillac related to the Display Dimming Signal Circuit?

The common symptoms include dim or flickering display lights on the dashboard or infotainment system.

2. What could cause the OBDII code B2624 in a Cadillac to trigger?

The code B2624 is typically triggered by a malfunction in the display dimming signal circuit, which controls the brightness of the display lights.

3. How can I diagnose the issue with OBDII code B2624 in my Cadillac?

To diagnose the issue, you can start by checking the wiring and connections related to the display dimming signal circuit, as well as testing the dimming control module.

4. Are there any simple repair tips for fixing OBDII code B2624 in a Cadillac?

One common repair tip is to check and replace any blown fuses related to the display dimming signal circuit, as this could be a simple fix for the issue.

5. Can a faulty dimmer switch cause OBDII code B2624 in a Cadillac?

Yes, a faulty dimmer switch can potentially cause the display dimming signal circuit malfunction that triggers the OBDII code B2624 in a Cadillac.

6. Is it safe to continue driving my Cadillac with OBDII code B2624 present?

It is generally safe to continue driving your Cadillac with this code, but it is recommended to address the issue promptly to avoid any potential problems with visibility due to dim or flickering display lights.

7. How much does it typically cost to repair OBDII code B2624 in a Cadillac?

The cost of repair can vary depending on the exact cause of the issue, but it may range from a simple fuse replacement cost to a more extensive repair involving the dimming control module.

8. Can I reset the OBDII code B2624 in my Cadillac after making repairs?

Yes, you can reset the code using an OBDII scanner or by disconnecting the car's battery for a few minutes to clear the error code from the system.

9. Will OBDII code B2624 in a Cadillac affect the vehicle's performance?

OBDII code B2624 is related to the display dimming signal circuit and should not directly affect the vehicle's overall performance or drivability.

10. How can I prevent OBDII code B2624 from occurring in the future in my Cadillac?

To prevent the code from occurring again, it's essential to ensure proper maintenance of the vehicle's electrical system and address any issues with the display dimming signal circuit promptly.