AutoCodes – GMC – B3604 2016 GMC Sierra

B3604 2016 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 2016 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 175

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 2016 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 2016 GMC Sierra - Adjustable Pedal Forward Switch Circuit Protection Time-Out - AutoCodes.com — B3604 2016 GMC Sierra Code - Adjustable Pedal Forward Switch Circuit Protection Time-Out

What does this mean?

What are the Possible Causes of the DTC B3604 2016 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 2016 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 2016 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 2016 GMC Sierra code?

Need more information on how to fix the B3604 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3604 2016 GMC Sierra 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 B3604 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code B3604 in a 2016 GMC Sierra?

The common symptoms of OBDII code B3604 in a 2016 GMC Sierra include inoperative adjustable pedals and a warning light on the dashboard.

2. What does the OBDII code B3604 indicate in a 2016 GMC Sierra?

OBDII code B3604 in a 2016 GMC Sierra indicates an issue with the Adjustable Pedal Forward Switch Circuit Protection Time-Out.

3. What are the possible causes of OBDII code B3604 in a 2016 GMC Sierra?

Possible causes of OBDII code B3604 in a 2016 GMC Sierra include a faulty adjustable pedal forward switch, wiring issues, or a malfunctioning control module.

4. How can I diagnose the OBDII code B3604 in my 2016 GMC Sierra?

Diagnosing OBDII code B3604 in a 2016 GMC Sierra involves inspecting the adjustable pedal forward switch, checking the wiring for damage, and using a diagnostic scanner to retrieve trouble codes.

5. Can I still drive my 2016 GMC Sierra with OBDII code B3604?

It is not recommended to drive your 2016 GMC Sierra with OBDII code B3604, as it may affect the operation of the adjustable pedals and compromise vehicle safety.

6. How can I repair OBDII code B3604 in my 2016 GMC Sierra?

Repairing OBDII code B3604 in a 2016 GMC Sierra may involve replacing the faulty adjustable pedal forward switch, repairing any damaged wiring, or resetting the control module.

7. Is it safe to reset the OBDII code B3604 in my 2016 GMC Sierra using a diagnostic tool?

Yes, it is safe to reset the OBDII code B3604 in a 2016 GMC Sierra using a diagnostic tool after making necessary repairs to address the underlying issue.

8. What should I do if the OBDII code B3604 keeps coming back in my 2016 GMC Sierra?

If the OBDII code B3604 keeps coming back in a 2016 GMC Sierra after repairs, it may indicate a persistent issue that requires further diagnosis by a professional technician.

9. Can a DIY enthusiast fix OBDII code B3604 in a 2016 GMC Sierra?

A DIY enthusiast with the necessary tools and knowledge may be able to fix OBDII code B3604 in a 2016 GMC Sierra by following repair guides and procedures provided by the manufacturer.

10. How long does it typically take to repair OBDII code B3604 in a 2016 GMC Sierra?

The time it takes to repair OBDII code B3604 in a 2016 GMC Sierra varies depending on the exact cause of the issue, but it may take anywhere from a few hours to a day for a skilled technician to diagnose and fix the problem.