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Engine-Codes – GMC – B3604 2017 GMC Sierra

B3604 2017 GMC Sierra Code - Adjustable Pedal Forward Switch Circuit Protection Time-Out

Quick Answer

The B3604 diagnostic trouble code (DTC) specifically refers to the Adjustable Pedal Forward Switch Circuit Protection Time-Out in a 2017 GMC Sierra. Common causes include Faulty adjustable pedal forward switch, Damaged wiring or connectors in the adjustable pedal circuit, Corrosion or moisture ingress in the circuit. 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
B3604 2017 GMC Sierra indicates Adjustable Pedal Forward Switch Circuit Protection Time-Out.
Common causes
Common causes include Faulty adjustable pedal forward switch, Damaged wiring or connectors in the adjustable pedal circuit, Corrosion or moisture ingress in the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code B3604 2017 GMC Sierra Description

The B3604 diagnostic trouble code (DTC) specifically refers to the Adjustable Pedal Forward Switch Circuit Protection Time-Out in a 2017 GMC Sierra. In simpler terms, this code indicates that there is an issue with the circuit protection timeout related to the adjustable pedal forward switch in the vehicle. The adjustable pedal system allows the driver to adjust the position of the accelerator and brake pedals to suit their comfort and driving style. The switch that controls this function is encountering a problem with its circuit protection timing, leading to the triggering of this code.

OBDII Code B3604 2017 GMC Sierra - Adjustable Pedal Forward Switch Circuit Protection Time-Out
B3604 2017 GMC Sierra Code - Adjustable Pedal Forward Switch Circuit Protection Time-Out

Common Causes of B3604 2017 GMC Sierra

  1. Faulty adjustable pedal forward switch
  2. Damaged wiring or connectors in the adjustable pedal circuit
  3. Corrosion or moisture ingress in the circuit
  4. Electrical issues within the adjustable pedal system
  5. Software malfunction in the vehicle's control module

Symptoms of B3604 2017 GMC Sierra

  1. Inability to adjust the position of the accelerator and brake pedals
  2. Pedals adjusting intermittently or erratically
  3. Illumination of the adjustable pedal system warning light on the dashboard
  4. Reduced responsiveness or functionality of the adjustable pedal system

How to Fix B3604 2017 GMC Sierra

  1. Begin by conducting a thorough inspection of the adjustable pedal forward switch, wiring, and connectors to identify any visible damage or corrosion.
  2. Test the switch using a multimeter to check for continuity and proper functionality.
  3. Replace the adjustable pedal forward switch if it is found to be faulty.
  4. Repair or replace any damaged wiring or connectors in the circuit.
  5. Clear the DTC from the vehicle's computer system and perform a test drive to ensure that the issue has been resolved.

Cost to Fix B3604 2017 GMC Sierra

The cost of repairing the Adjustable Pedal Forward Switch Circuit Protection Time-Out issue can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the parts for this repair may range from $50 to $200, while the labor cost could be between $100 and $300. Overall, the total cost of addressing this code could be around $150 to $500, but it's important to consult with a professional mechanic or dealership for a more accurate estimate based on the specific circumstances of your vehicle. Keep in mind that labor rates and parts prices can vary widely based on location and service provider.

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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 B3604 2017 GMC Sierra Code

1. What does OBDII code B3604 for a 2017 GMC Sierra mean?

The code B3604 indicates a fault with the Adjustable Pedal Forward Switch Circuit Protection Time-Out in a 2017 GMC Sierra.

2. What are the common symptoms of OBDII code B3604 in a 2017 GMC Sierra?

Common symptoms include the inability to adjust the pedal position, erratic pedal movement, or a warning light on the dashboard.

3. What are the possible causes of OBDII code B3604 in a 2017 GMC Sierra?

Possible causes include a faulty pedal position sensor, damaged wiring harness, or a malfunctioning control module.

4. How can I diagnose OBDII code B3604 in my 2017 GMC Sierra?

Diagnosing this code involves using a scan tool to retrieve the specific fault code and then inspecting the pedal position sensor, wiring, and control module for any issues.

5. Can I still drive my 2017 GMC Sierra with OBDII code B3604?

It is not recommended to drive the vehicle with this code present, as it can affect the proper functioning of the adjustable pedal system.

6. How can I repair OBDII code B3604 in my 2017 GMC Sierra?

Repairing this code may involve replacing the faulty pedal position sensor, repairing damaged wiring, or reprogramming the control module.

7. Is OBDII code B3604 a serious issue in a 2017 GMC Sierra?

While it may not be a critical issue, ignoring this code can lead to inconvenience and potential safety concerns due to the adjustable pedal system not functioning correctly.

8. Can I reset OBDII code B3604 in my 2017 GMC Sierra?

Resetting the code may temporarily clear the warning light, but it is important to diagnose and address the underlying issue to prevent the code from reoccurring.

9. How much does it cost to fix OBDII code B3604 in a 2017 GMC Sierra?

The cost of fixing this code can vary depending on the exact cause of the issue, but it may involve parts and labor expenses.

10. Can I prevent OBDII code B3604 from appearing in my 2017 GMC Sierra?

Regular maintenance and inspections of the adjustable pedal system can help prevent issues that may trigger this code.

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