AutoCodes – GMC – B3517 GMC

B3517 GMC 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 GMC 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 414

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

What does this mean?

What are the Possible Causes of the DTC B3517 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 B3517 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 B3517 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 B3517 GMC Code

1. What are the common symptoms of OBDII code B3517 GMC?

The common symptoms of code B3517 GMC include the left rear window failing to operate using the express down feature or operating slower than usual.

2. What are the possible causes of OBDII code B3517 GMC?

Possible causes of code B3517 GMC include a faulty left rear window switch, damaged wiring or connectors in the left rear window circuit, or a malfunctioning left rear window motor.

3. How can I diagnose the issue related to OBDII code B3517 GMC?

To diagnose the issue related to code B3517 GMC, you can start by checking the left rear window switch for proper operation, inspecting the wiring and connectors for any damage, and testing the left rear window motor for functionality.

4. What are some repair tips for resolving OBDII code B3517 GMC?

Repair tips for resolving code B3517 GMC include repairing or replacing the left rear window switch if faulty, repairing damaged wiring or connectors in the circuit, and replacing the left rear window motor if necessary.

5. Can I reset OBDII code B3517 GMC once the issue is fixed?

Yes, once the underlying issue related to code B3517 GMC is resolved, you can reset the code using an OBDII scanner to clear it from the vehicle's memory.

6. Are there any safety concerns associated with OBDII code B3517 GMC?

While code B3517 GMC is related to the left rear window circuit, there are no immediate safety concerns associated with this code. However, it is important to address the issue promptly to ensure proper functionality of the window.

7. How does OBDII code B3517 GMC affect the vehicle's overall performance?

OBDII code B3517 GMC specifically affects the operation of the left rear window express down feature and does not impact the overall performance of the vehicle in terms of driving or engine function.

8. Is it possible to drive the vehicle with OBDII code B3517 GMC present?

Yes, it is typically safe to drive the vehicle with OBDII code B3517 GMC present, as long as the issue does not interfere with the normal operation of the vehicle or compromise safety.

9. How common is OBDII code B3517 GMC in GMC vehicles?

OBDII code B3517 GMC related to the left rear window express down circuit low is a relatively common issue in GMC vehicles, particularly in models with power windows and express down features.

10. Can I fix OBDII code B3517 GMC myself, or do I need professional help?

Depending on your automotive repair skills and experience, you may be able to diagnose and fix OBDII code B3517 GMC yourself by following repair guides and utilizing the necessary tools. However, if you are unsure or uncomfortable with the repair process, it is recommended to seek professional help from a certified mechanic or technician.