AutoCodes – Generic – B2625

B2625 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 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 5,717

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

What does this mean?

What are the Possible Causes of the DTC B2625?

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?

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 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 B2625 code?

Need more information on how to fix the B2625 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2625 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2625 Acura — Left Front Sensor Failure
B2625 Buick — Display Dimming Pulse Width Modulation Output Circuit
B2625 Cadillac — Display Dimming Pulse Width Modulation Output Circuit
B2625 Chevrolet — Display Dimming Pulse Width Modulation Output Circuit
B2625 GMC — Display Dimming Pulse Width Modulation Output Circuit
B2625 Honda — Left Front Sensor Failure

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 Code

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

- Common symptoms include dim or flickering display lights on the vehicle's dashboard or instrument cluster.

2. What causes the OBDII code B2625 to trigger?

- The code B2625 is triggered when there is a malfunction in the display dimming pulse width modulation output circuit, which controls the brightness of the dashboard lights.

3. How can I diagnose the cause of OBDII code B2625?

- A diagnostic scan tool can be used to retrieve the specific error code B2625 and help pinpoint the issue in the display dimming PWM circuit.

4. Is it safe to continue driving with OBDII code B2625 active?

- While the vehicle may still be operable with this code, it is recommended to address the underlying issue promptly to prevent further electrical problems.

5. Can a DIY enthusiast repair OBDII code B2625 at home?

- Repairing the display dimming PWM circuit may require advanced electrical knowledge and specialized tools, so it is best left to professional technicians.

6. What are some common repair tips for resolving OBDII code B2625?

- Inspecting and repairing any damaged wiring, connectors, or components related to the display dimming PWM circuit can help resolve the issue.

7. How much does it typically cost to fix OBDII code B2625?

- The cost of fixing OBDII code B2625 can vary depending on the extent of the damage and the labor rates of the repair shop. It is recommended to get a few quotes from different mechanics.

8. Can a faulty battery or alternator cause OBDII code B2625 to appear?

- While a weak battery or charging system can sometimes affect electrical components, the OBDII code B2625 is more likely related to a specific issue in the display dimming PWM circuit.

9. Will resetting the OBDII code B2625 resolve the problem temporarily?

- Resetting the code may temporarily turn off the check engine light, but it will not fix the underlying issue causing the malfunction in the display dimming PWM circuit.

10. Is it necessary to visit a dealership for repairs related to OBDII code B2625?

- While dealerships may have specialized knowledge and tools for certain repairs, independent auto repair shops with experience in electrical systems can also effectively diagnose and repair OBDII code B2625.