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C164E Lexus Code - Stop Switch Circuit Malfunction

Quick Answer

The C164E diagnostic trouble code (DTC) for Lexus vehicles refers to a Stop Switch Circuit Malfunction. Common causes include Faulty stop lamp switch, Damaged wiring or connectors in the stop switch circuit, Malfunctioning brake pedal position sensor. 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
C164E Lexus indicates Stop Switch Circuit Malfunction.
Common causes
Common causes include Faulty stop lamp switch, Damaged wiring or connectors in the stop switch circuit, Malfunctioning brake pedal position sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 29, 2024
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Code C164E Lexus Description

The C164E diagnostic trouble code (DTC) for Lexus vehicles refers to a Stop Switch Circuit Malfunction. This code indicates that there is an issue with the stop lamp switch circuit, which is responsible for activating the brake lights when the brake pedal is pressed. The stop lamp switch is a crucial component of the vehicle's safety system, as it signals to other drivers that the vehicle is slowing down or stopping.

OBDII Code C164E Lexus - Stop Switch Circuit Malfunction
C164E Lexus Code - Stop Switch Circuit Malfunction

Common Causes of C164E Lexus

  1. Faulty stop lamp switch.
  2. Damaged wiring or connectors in the stop switch circuit.
  3. Malfunctioning brake pedal position sensor.
  4. Corrosion or moisture in the circuit.
  5. Electronic control module (ECM) software issue.

Symptoms of C164E Lexus

  1. Brake lights not illuminating when the brake pedal is pressed.
  2. Inability to engage the vehicle's cruise control system.
  3. Dashboard warning light indicating a brake system fault.
  4. Difficulty shifting out of park (if equipped with a shift interlock system).
  5. Increased fuel consumption due to the cruise control system being disabled.

How to Fix C164E Lexus

  1. Begin by locating the stop lamp switch, typically mounted near the brake pedal assembly.
  2. Inspect the wiring and connectors for any signs of damage, corrosion, or loose connections.
  3. Test the stop lamp switch using a multimeter to check for continuity when the brake pedal is pressed.
  4. Replace the stop lamp switch if it fails the continuity test.
  5. Clear the DTC using a diagnostic scan tool and test the brake lights to ensure they illuminate properly.

Cost to Fix C164E Lexus

The cost of repairing a Stop Switch Circuit Malfunction (C164E) can vary depending on the specific cause of the issue and the labor rates in your area. On average, the parts for this repair can range from $20 to $50, while the labor costs can be between $80 and $150 per hour. Therefore, the total repair cost may fall between $100 and $300. It's recommended to contact local auto repair shops for accurate pricing based on your vehicle make and model.

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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 C164E Lexus Code

1. What are the common symptoms of OBDII code C164E in a Lexus related to the Stop Switch Circuit Malfunction?

- The common symptoms include the inability to start the vehicle, issues with the brake lights, and potential problems with the cruise control system.

2. What are the possible causes of the Stop Switch Circuit Malfunction (code C164E) in a Lexus?

- Possible causes include a faulty stop switch, damaged wiring or connectors in the circuit, or a malfunctioning brake light switch.

3. How can I diagnose the Stop Switch Circuit Malfunction in my Lexus when OBDII code C164E is triggered?

- You can start by checking the brake lights to see if they are functioning properly, inspecting the stop switch and brake light switch for any visible damage, and using a diagnostic tool to read the error codes.

4. Is it safe to continue driving my Lexus with the C164E OBDII code indicating a Stop Switch Circuit Malfunction?

- It is not recommended to drive the vehicle with this code active, as it may lead to safety issues like the brake lights not working correctly or the inability to start the car.

5. How can I repair the Stop Switch Circuit Malfunction in my Lexus after receiving the OBDII code C164E?

- The repair process typically involves replacing the faulty stop switch, brake light switch, or repairing any damaged wiring or connectors in the circuit.

6. Can I reset the OBDII code C164E related to the Stop Switch Circuit Malfunction in my Lexus without fixing the underlying issue?

- While you can clear the error code using a diagnostic tool, it is important to address the root cause of the problem to prevent it from recurring.

7. Will replacing the brake light bulbs fix the Stop Switch Circuit Malfunction code C164E in my Lexus?

- While it is a good idea to ensure that the brake light bulbs are in working condition, the issue may be related to the stop switch, brake light switch, or wiring rather than just the bulbs.

8. How long does it typically take to repair the Stop Switch Circuit Malfunction triggering OBDII code C164E in a Lexus?

- The repair time can vary depending on the exact cause of the issue, but it usually takes a couple of hours to diagnose and replace the faulty components.

9. Are there any preventive measures to avoid encountering the Stop Switch Circuit Malfunction in a Lexus?

- Regularly inspecting the brake lights, stop switch, and brake light switch for any signs of wear or damage can help prevent this issue from occurring.

10. Can a DIY enthusiast with basic automotive knowledge fix the Stop Switch Circuit Malfunction causing OBDII code C164E in a Lexus?

- Depending on the exact cause of the malfunction, a DIY enthusiast may be able to address the issue by replacing components like the stop switch or brake light switch, but professional assistance is recommended for complex wiring problems.

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