AutoCodes – GMC – B3604 2014 GMC Sierra

B3604 2014 GMC Sierra Code - Adjustable Pedal Forward Switch Circuit Protection Time-Out

Quick Answer

Ground is supplied at all times to the adjustable pedal switch. Common causes include Faulty Adjustable Pedal Forward Switch, Adjustable Pedal Forward Switch harness is open or shorted, Adjustable Pedal Forward Switch 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: B3604 2014 GMC Sierra indicates Adjustable Pedal Forward Switch Circuit Protection Time-Out.
Common causes: Common causes include Faulty Adjustable Pedal Forward Switch, Adjustable Pedal Forward Switch harness is open or shorted, Adjustable Pedal Forward Switch 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 179

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 Jun 14, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3604 2014 GMC Sierra Description

Ground is supplied at all times to the adjustable pedal switch. The adjustable pedal forward and rearward switches are inputs to the seat memory control module. When the switch is operated to the forward or rearward direction, it supplies a ground path for the signal inputs from the seat memory control module. The seat memory control module then commands the adjustable pedals motor to move in response to the switch signal. The Diagnostic Trouble Code (DTC) will be set when the seat memory control module detects short to ground in the forward signal circuit for greater than 60 s.

OBDII Code B3604 2014 GMC Sierra - Adjustable Pedal Forward Switch Circuit Protection Time-Out - AutoCodes.com — B3604 2014 GMC Sierra Code - Adjustable Pedal Forward Switch Circuit Protection Time-Out

What does this mean?

What are the Possible Causes of the DTC B3604 2014 GMC Sierra?

Faulty Adjustable Pedal Forward Switch
Adjustable Pedal Forward Switch harness is open or shorted
Adjustable Pedal Forward Switch circuit poor electrical connection
Faulty Driver Seat Memory Control Module

How to Fix the DTC B3604 2014 GMC Sierra?

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 B3604 2014 GMC Sierra 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 B3604 2014 GMC Sierra code?

Need more information on how to fix the B3604 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code B3604 in a 2014 GMC Sierra?

The common symptoms of code B3604 include the adjustable pedals not moving forward as expected and the Check Engine light illuminating on the dashboard.

2. What is the likely cause of OBDII code B3604 in a 2014 GMC Sierra?

The most likely cause of code B3604 is a malfunction in the adjustable pedal forward switch circuit, leading to a time-out in circuit protection.

3. How can I diagnose the issue related to OBDII code B3604 in my 2014 GMC Sierra?

To diagnose the problem, you can start by checking the wiring and connections related to the adjustable pedal forward switch. Inspecting for any visible damage or loose connections is a good place to begin.

4. Is it safe to continue driving my 2014 GMC Sierra with OBDII code B3604 present?

It is not recommended to drive the vehicle with unresolved code B3604, as the malfunctioning adjustable pedal forward switch could pose a safety risk. It's best to address the issue promptly.

5. Can I reset OBDII code B3604 in my 2014 GMC Sierra by disconnecting the battery?

While disconnecting the battery may clear the code temporarily, it is not a permanent solution. The underlying issue causing the code will need to be identified and repaired to prevent the problem from reoccurring.

6. Are there any DIY repair tips for fixing OBDII code B3604 in a 2014 GMC Sierra?

If you are comfortable working on automotive electrical systems, you can attempt to inspect and repair the adjustable pedal forward switch circuit yourself. However, it's recommended to seek professional help if you are unsure.

7. How much does it typically cost to repair OBDII code B3604 in a 2014 GMC Sierra?

The cost of repairing code B3604 can vary depending on the underlying cause of the issue, labor rates in your area, and whether any parts need to be replaced. It's advisable to obtain quotes from reputable mechanics.

8. Can a faulty adjustable pedal forward switch circuit impact other systems in a 2014 GMC Sierra?

While the primary impact of a malfunctioning adjustable pedal forward switch circuit is related to the pedal adjustment function, it can potentially affect other electrical systems in the vehicle due to the interconnected nature of modern automotive electronics.

9. Is OBDII code B3604 a common issue in 2014 GMC Sierra vehicles?

While code B3604 may not be as common as some other OBDII codes, it can still occur in 2014 GMC Sierra models due to various factors such as wear and tear, electrical issues, or component failure.

10. How long does it typically take to repair OBDII code B3604 in a 2014 GMC Sierra?

The repair time for code B3604 can vary depending on the exact nature of the issue and the expertise of the mechanic performing the repair. In general, it may take a few hours to diagnose and fix the problem.