AutoCodes – Generic – B3604

B3604 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 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 1,093

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

What does this mean?

What are the Possible Causes of the DTC B3604?

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?

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 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 code?

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

Need Help with the Code?

Get the B3604 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B3604 Buick — Adjustable Pedal Forward Switch Circuit Protection Time-Out
B3604 Cadillac — Adjustable Pedal Forward Switch Circuit Protection Time-Out
B3604 Chevrolet — Adjustable Pedal Forward Switch Circuit Protection Time-Out
B3604 GMC — Adjustable Pedal Forward Switch Circuit Protection Time-Out

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 Code

1. What are the common symptoms of OBDII code B3604?

The common symptoms of OBDII code B3604 include inoperative adjustable pedals, difficulty adjusting the pedal position, or the adjustable pedal system not responding to inputs.

2. What can cause the OBDII code B3604 to be triggered?

The OBDII code B3604, Adjustable Pedal Forward Switch Circuit Protection Time-Out, can be triggered by a malfunction in the adjustable pedal forward switch circuit, which may be caused by wiring issues, a faulty switch, or a damaged pedal position sensor.

3. How can I diagnose the root cause of OBDII code B3604?

To diagnose the root cause of OBDII code B3604, a thorough inspection of the adjustable pedal system wiring, switches, and sensors is necessary. Using a diagnostic scanner to retrieve the trouble code and testing the components for continuity and proper operation can help pinpoint the issue.

4. Can I repair OBDII code B3604 on my own?

Depending on your level of automotive repair skills, you may be able to repair OBDII code B3604 on your own. Repairing this code typically involves identifying and fixing the underlying issue in the adjustable pedal forward switch circuit, which may involve replacing a faulty switch, repairing wiring, or recalibrating the pedal position sensor.

5. Is it safe to drive with OBDII code B3604 present?

If your adjustable pedal system is not functioning properly due to OBDII code B3604, it is not recommended to drive the vehicle. Inoperative adjustable pedals can affect your driving comfort and safety, so it's best to address the issue promptly.

6. Can resetting the OBDII code B3604 fix the problem temporarily?

Resetting the OBDII code B3604 may temporarily clear the trouble code, but if the underlying issue in the adjustable pedal forward switch circuit is not addressed, the code is likely to reappear. It's important to diagnose and repair the root cause of the code to ensure proper functionality of the adjustable pedal system.

7. How much does it typically cost to repair OBDII code B3604?

The cost of repairing OBDII code B3604 can vary depending on the root cause of the issue, the cost of replacement parts, and labor charges. It's recommended to consult with a professional mechanic or dealership to get an accurate estimate for the repair.

8. Can extreme weather conditions trigger OBDII code B3604?

Extreme weather conditions such as extreme heat or moisture can potentially affect the performance of the adjustable pedal system components, leading to issues that may trigger OBDII code B3604. Ensuring proper insulation and protection of the components can help prevent weather-related malfunctions.

9. Are there any preventive measures to avoid OBDII code B3604?

Regularly inspecting the adjustable pedal system components for signs of wear or damage, ensuring proper connections and wiring integrity, and following the manufacturer's maintenance recommendations can help prevent issues that may trigger OBDII code B3604.

10. How long does it typically take to repair OBDII code B3604?

The time required to repair OBDII code B3604 can vary depending on the complexity of the issue and the availability of replacement parts. Simple repairs such as fixing wiring connections may take less time, while replacing a faulty switch or sensor may require more labor. It's advisable to consult with a professional to get an accurate repair timeline.