AutoCodes – Generic – C1659

C1659 Code - Brake System Malfunction

Quick Answer

This Diagnostic Trouble Code (DTC) is stored when the Parking Assist ECU receives a malfunction signal from the Brake Control System via CAN communication. Common causes include Faulty Brake Control System, Brake Control System harness is open or shorted, Brake Control System 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: C1659 indicates Brake System Malfunction.
Common causes: Common causes include Faulty Brake Control System, Brake Control System harness is open or shorted, Brake Control System 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 2,480

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 Nov 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1659 Description

This Diagnostic Trouble Code (DTC) is stored when the Parking Assist ECU receives a malfunction signal from the Brake Control System via CAN communication.

OBDII Code C1659 - Brake System Malfunction - AutoCodes.com — C1659 Code - Brake System Malfunction

What does this mean?

What are the Possible Causes of the DTC C1659?

Faulty Brake Control System
Brake Control System harness is open or shorted
Brake Control System circuit poor electrical connection

How to Fix the DTC C1659?

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 C1659 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 C1659 code?

Need more information on how to fix the C1659 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1659 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1659 Lexus — Brake System Malfunction
C1659 Toyota — Brake System Malfunction

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 C1659 Code

1. What are the common symptoms of OBDII code C1659 (Brake System Malfunction)?

- Common symptoms include the brake warning light on the dashboard, loss of brake power, and potential difficulty stopping the vehicle.

2. What are some possible causes of OBDII code C1659?

- Possible causes include faulty brake system components, such as a malfunctioning brake actuator or pressure sensor, wiring issues, or a problem with the brake control module.

3. How serious is OBDII code C1659 (Brake System Malfunction)?

- This code indicates a critical issue with the brake system that can compromise the vehicle's safety. It is important to address this problem promptly to avoid potential accidents.

4. Can I continue driving with OBDII code C1659?

- It is not recommended to drive the vehicle with this code present, as it signifies a brake system malfunction that could lead to brake failure. It is advisable to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose OBDII code C1659?

- Diagnosing this code typically involves using a professional OBDII scanner to retrieve the specific fault codes related to the brake system. A thorough inspection of the brake components may also be necessary.

6. What are some repair tips for OBDII code C1659?

- Repair tips may include checking and repairing any damaged wiring, replacing faulty brake system components, such as the actuator or pressure sensor, and ensuring proper brake fluid levels.

7. Will resetting the OBDII code C1659 resolve the issue?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying problem causing the brake system malfunction. It is essential to diagnose and repair the issue to prevent further complications.

8. How much does it cost to repair OBDII code C1659?

- The cost of repair can vary depending on the specific cause of the brake system malfunction. Costs may include parts replacement, labor charges, and diagnostic fees from a professional mechanic.

9. Can a DIY enthusiast fix OBDII code C1659 at home?

- While some basic troubleshooting and repairs may be possible for experienced DIY enthusiasts, diagnosing and repairing complex brake system issues related to this code may require professional expertise.

10. Is it necessary to visit a mechanic for OBDII code C1659, or can I ignore it?

- Ignoring OBDII code C1659 is not recommended, as it indicates a serious safety concern related to the brake system. Visiting a qualified mechanic for diagnosis and repair is crucial to ensure the vehicle's safety on the road.