AutoCodes – Chevrolet – B3517 Chevrolet

B3517 Chevrolet Code - Left Rear Window Express Down 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: B3517 Chevrolet indicates Left Rear Window Express Down 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 504

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 B3517 Chevrolet 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 B3517 Chevrolet - Left Rear Window Express Down Circuit Low - AutoCodes.com — B3517 Chevrolet Code - Left Rear Window Express Down Circuit Low

What does this mean?

What are the Possible Causes of the DTC B3517 Chevrolet?

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 B3517 Chevrolet?

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 B3517 Chevrolet 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?

Get the B3517 Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 B3517 Chevrolet Code

1. What does the OBDII code B3517 mean for a Chevrolet?

B3517 indicates a problem with the left rear window express-down circuit, specifically a low voltage condition.

2. What are the common symptoms of code B3517 in a Chevrolet?

Symptoms include the left rear window not rolling down automatically when using the express-down feature and potentially no response from the window switch.

3. What causes the B3517 code to appear?

Common causes include a faulty window switch, damaged wiring or connectors in the circuit, or a malfunctioning window motor.

4. Can a blown fuse cause the B3517 code?

Yes, a blown fuse related to the power windows can cause this code by interrupting the circuit.

5. How can I diagnose the B3517 code on my Chevrolet?

Start by inspecting the wiring, connectors, and fuses for visible damage, then test the window switch and motor with a multimeter for proper function.

6. Is the B3517 code a serious issue?

While it doesn't affect drivability, it may impact convenience and safety if the window cannot be used properly.

7. Can I fix the B3517 code myself?

If you're comfortable with basic electrical testing and repairs, you may be able to fix it by replacing a faulty switch, motor, or repairing damaged wiring.

8. How much does it cost to repair the B3517 code?

Repair costs vary but can range from $50 to $300 depending on whether the issue is with the switch, motor, or wiring.

9. Can a software issue cause the B3517 code?

While rare, a software issue in the body control module (BCM) could potentially cause this code and may require a reflash or update.

10. Will clearing the B3517 code fix the problem?

Clearing the code may temporarily remove it, but the underlying issue will cause it to return until properly repaired.

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