AutoCodes – Cadillac – B3604 Cadillac

B3604 Cadillac 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 Cadillac 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 697

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

What does this mean?

What are the Possible Causes of the DTC B3604 Cadillac?

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 Cadillac?

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 Cadillac 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 B3604 Cadillac Code

What does OBDII code B3604 mean on a Cadillac?

1. B3604 indicates an issue with the Adjustable Pedal Forward Switch Circuit, specifically a protection time-out error, meaning the circuit may be stuck or experiencing excessive electrical draw. 2.

What are common symptoms of code B3604 in a Cadillac?

Common symptoms include unresponsive adjustable pedals, the pedals moving only in one direction, or the adjustable pedal feature not working at all. 3.

What causes code B3604 to trigger?

The code can be triggered by a faulty adjustable pedal switch, a short or open circuit in the wiring, or a problem with the adjustable pedal motor. 4.

Can I drive my Cadillac with code B3604 present?

Yes, the vehicle is still drivable, but the adjustable pedal feature may not function. Itâ€™s advisable to address the issue to avoid further electrical problems. 5.

How do I diagnose the B3604 code?

Start by inspecting the adjustable pedal switch, wiring, and connectors for damage or corrosion. Use a multimeter to test for proper voltage and continuity in the circuit. 6.

What repairs are typically needed for code B3604?

Repairs may include replacing the adjustable pedal switch, repairing or replacing damaged wiring, or replacing a faulty adjustable pedal motor. 7.

Can a dead battery cause code B3604 to appear?

Itâ€™s unlikely, but a weak or inconsistent power supply could contribute to electrical issues. Ensure the battery and charging system are functioning properly. 8.

How can I prevent code B3604 from recurring?

Regularly inspect the adjustable pedal components and electrical connectors for wear, corrosion, or damage, and avoid overloading the pedalsâ€™ adjustment system. 9.

Is special equipment needed to clear code B3604?

Yes, youâ€™ll need an OBDII scanner capable of reading and clearing body control module (BCM) codes to reset the B3604 error. 10.

What happens if I ignore code B3604?

Ignoring the code may lead to further electrical issues or a complete failure of the adjustable pedal system, potentially requiring more extensive repairs.