AutoCodes – GMC – B2625 GMC

B2625 GMC Code - Display Dimming Pulse Width Modulation Output Circuit

Quick Answer

The Body Control Module (BCM) receives a variable voltage signal from the Instrument Panel (I/P) dimmer switch requesting to illuminate the dimming lamps to a desired intensity. 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: B2625 GMC indicates Display Dimming Pulse Width Modulation Output 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 1,808

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 B2625 GMC Description

The Body Control Module (BCM) receives a variable voltage signal from the Instrument Panel (I/P) dimmer switch requesting to illuminate the dimming lamps to a desired intensity. When this occurs, the BCM directly sends a Pulse Width Modulated (PWM) voltage based on the I/P dimmer switch position on the LED dimming supply circuit, instrument panel lamps dimming control circuit, and the instrument panel lamps dimming supply voltage circuit.
Voltage for the LED dimming supply circuit, instrument panel lamps dimming control circuit, and the instrument panel lamps dimming supply voltage circuit is from the TBC 2 A fuse in the I/P fuse block directly through the BCM to these circuits.

OBDII Code B2625 GMC - Display Dimming Pulse Width Modulation Output Circuit - AutoCodes.com — B2625 GMC Code - Display Dimming Pulse Width Modulation Output Circuit

What does this mean?

What are the Possible Causes of the DTC B2625 GMC?

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 B2625 GMC?

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 B2625 GMC 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.

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Need Help with the 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 B2625 GMC Code

1. What are the common symptoms of OBDII code B2625 GMC?

The common symptoms of code B2625 include dim or flickering display lights on the vehicle's dashboard.

2. What causes the OBDII code B2625 GMC to appear?

The code B2625 typically appears due to a malfunction in the display dimming pulse width modulation output circuit.

3. How can I diagnose the display dimming pulse width modulation output circuit issue?

To diagnose the issue, you can use a multimeter to test the voltage output of the circuit and check for any loose connections or damaged wiring.

4. Are there any common repair tips for fixing OBDII code B2625 GMC?

Common repair tips include checking and repairing any damaged wiring, replacing a faulty display dimming module, and ensuring all connections are secure.

5. Is it safe to continue driving with OBDII code B2625 GMC present?

It is generally safe to continue driving with this code, but it is recommended to address the issue promptly to prevent potential electrical problems.

6. Can a DIY enthusiast fix the OBDII code B2625 GMC issue?

Depending on your skill level and access to tools, a DIY enthusiast may be able to fix the issue by following repair guides and consulting with automotive experts if needed.

7. How much does it typically cost to repair OBDII code B2625 GMC at a mechanic or dealership?

The cost of repairing code B2625 can vary depending on the extent of the issue and labor rates, but it can range from $100 to $300 at a mechanic or dealership.

8. Does the OBDII code B2625 GMC affect the overall performance of the vehicle?

The OBDII code B2625 usually does not affect the overall performance of the vehicle but may cause inconvenience due to dim or flickering display lights.

9. Can extreme weather conditions cause OBDII code B2625 GMC to trigger?

Extreme weather conditions can potentially exacerbate existing issues with the display dimming pulse width modulation output circuit, leading to the triggering of code B2625.

10. How often should I check the display dimming pulse width modulation circuit to prevent OBDII code B2625 GMC from appearing?

It is recommended to include a visual inspection of the display dimming pulse width modulation circuit as part of your regular vehicle maintenance routine to prevent the occurrence of code B2625.