AutoCodes – GMC – B3452 GMC

B3452 GMC Code - Left Rear Window Down Switch Circuit Low

Quick Answer

The window switch or window switch circuits that generate this Diagnostic Trouble Code (DTC) are built-in parts of the Driver Door Switch Assembly (DDSA). Common causes include Faulty Driver Door Switch Assembly (DDSA), Driver Door Switch Assembly (DDSA) harness is open or shorted, Driver Door Switch Assembly (DDSA) 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: B3452 GMC indicates Left Rear Window Down Switch Circuit Low.
Common causes: Common causes include Faulty Driver Door Switch Assembly (DDSA), Driver Door Switch Assembly (DDSA) harness is open or shorted, Driver Door Switch Assembly (DDSA) 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 445

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 Mar 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3452 GMC Description

The window switch or window switch circuits that generate this Diagnostic Trouble Code (DTC) are built-in parts of the Driver Door Switch Assembly (DDSA). There are no external circuits. The DDSA internally supplies power and ground to the contacts of each of the integral window switches. When one of the switches is operated, the switch contacts close, providing the DDSA with a specific window switch signal. The DDSA processes this signal, assigns a digital message to it, and sends the message to the appropriate Driver Door Module (DDM), Passenger Front Door Module (PDM), Left Rear Door Module (LRDM), or Right Rear Door Module (RRDM), via the class 2 serial data circuit. The door module, upon receiving the message, examines other relevant information available on the class 2 serial data line in order to determine if conditions are correct for window operation to occur. If conditions are correct, the door module applies power and ground to the associated window motor and circuits in order to move the window. If the DDSA determines that one of its built in window switches is closed for more than 15 continuous seconds, it sets the DTC.

OBDII Code B3452 GMC - Left Rear Window Down Switch Circuit Low - AutoCodes.com — B3452 GMC Code - Left Rear Window Down Switch Circuit Low

What does this mean?

What are the Possible Causes of the DTC B3452 GMC?

Faulty Driver Door Switch Assembly (DDSA)
Driver Door Switch Assembly (DDSA) harness is open or shorted
Driver Door Switch Assembly (DDSA) circuit poor electrical connection
Faulty Left Rear Door Module (LRDM)
Faulty Driver Door Module (DDM)

How to Fix the DTC B3452 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 B3452 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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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 B3452 GMC Code

1. What are the common symptoms of OBDII code B3452 GMC (Left Rear Window Down Switch Circuit Low)?

The common symptoms include the left rear window being unable to go up or down, the window getting stuck in one position, and the window switch not responding.

2. What are the possible causes of OBDII code B3452 GMC?

Possible causes of this code include a faulty left rear window switch, damaged wiring or connectors in the circuit, or a problem with the power window motor.

3. How can I diagnose the issue related to OBDII code B3452 GMC?

Diagnosing the issue involves checking the left rear window switch for functionality, inspecting the wiring and connectors for damage, and testing the power window motor for proper operation.

4. Can I repair OBDII code B3452 GMC on my own?

If you are familiar with automotive electrical systems and have the necessary tools, you may be able to repair this code on your own by replacing the faulty window switch, repairing damaged wiring, or addressing any other identified issues.

5. Is it safe to continue driving with OBDII code B3452 GMC active?

It is not recommended to continue driving with this code active, as it may result in the left rear window being stuck in a position that could compromise your safety or security.

6. How much does it typically cost to repair OBDII code B3452 GMC?

The cost of repairing this code can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to do the repair yourself or take your vehicle to a professional mechanic.

7. Can OBDII code B3452 GMC affect other electrical components in the vehicle?

While this code specifically relates to the left rear window switch circuit, electrical issues in one part of the vehicle can sometimes impact other components, so it's important to address the problem promptly.

8. Are there any preventive measures to avoid OBDII code B3452 GMC in the future?

To prevent this code from recurring, you can periodically check and maintain the condition of your vehicle's power window system, including the switches, wiring, and motors.

9. How long does it take to repair OBDII code B3452 GMC?

The repair time for this code can vary depending on the exact cause of the issue, your experience with automotive repairs, and the availability of any necessary replacement parts.

10. Will resetting the OBDII system make OBDII code B3452 GMC go away?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear. It's important to diagnose and repair the root cause of the problem.