AutoCodes – Generic – C164E

C164E Code - Stop Switch Circuit Malfunction

Quick Answer

This Diagnostic Trouble Code (DTC) is stored when the Parking Assist ECU receives a stop light switch assembly open signal from the brake control system via CAN communication. Common causes include Faulty Electronically Controlled Brake System. 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 indicates Stop Switch Circuit Malfunction.
Common causes: Common causes include Faulty Electronically Controlled Brake System.
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 1,201

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 15, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C164E Description

This Diagnostic Trouble Code (DTC) is stored when the Parking Assist ECU receives a stop light switch assembly open signal from the brake control system via CAN communication.

OBDII Code C164E - Stop Switch Circuit Malfunction - AutoCodes.com — C164E Code - Stop Switch Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC C164E?

Faulty Electronically Controlled Brake System

How to Fix the DTC C164E?

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 C164E 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 C164E code?

Need more information on how to fix the C164E code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C164E code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C164E Lexus — Stop Switch Circuit Malfunction
C164E Toyota — Stop Switch Circuit 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 C164E Code

1. What are common symptoms of OBDII code C164E, Stop Switch Circuit Malfunction?

- Common symptoms include the inability to start the vehicle, the inability to shift out of park, and the disabling of cruise control.

2. What can cause the OBDII code C164E to trigger?

- The code C164E can be triggered by a faulty stop switch, damaged wiring or connectors related to the stop switch circuit, or a defective brake light switch.

3. How can I diagnose the cause of the Stop Switch Circuit Malfunction?

- Start by checking the stop switch and brake light switch for proper functionality. Inspect the wiring and connectors for any signs of damage or corrosion. Use a diagnostic scanner to read the trouble codes and pinpoint the issue.

4. Can a faulty stop switch affect the vehicle's safety?

- Yes, a faulty stop switch can affect the vehicle's safety by causing issues with starting the vehicle, shifting gears, and engaging the cruise control system.

5. How can I repair the Stop Switch Circuit Malfunction?

- Repairing the issue may involve replacing the faulty stop switch or brake light switch, repairing damaged wiring or connectors, and clearing the trouble codes with a diagnostic scanner.

6. Is it safe to continue driving with the Stop Switch Circuit Malfunction code active?

- It is not recommended to continue driving with the Stop Switch Circuit Malfunction code active, as it can affect the proper functioning of critical safety systems in the vehicle.

7. Can I reset the OBDII code C164E without fixing the underlying issue?

- While you can clear the trouble code temporarily, it is important to address the underlying issue causing the code to prevent further problems with the vehicle.

8. How much does it cost to repair the Stop Switch Circuit Malfunction?

- The cost of repairing the Stop Switch Circuit Malfunction can vary depending on the specific cause of the issue, but it may involve parts and labor costs ranging from $50 to $200 or more.

9. Will fixing the Stop Switch Circuit Malfunction improve the vehicle's performance?

- Fixing the Stop Switch Circuit Malfunction will primarily restore the proper operation of safety systems like starting, shifting, and cruise control, rather than directly affecting the vehicle's performance.

10. Can the OBDII code C164E be intermittent?

- Yes, the OBDII code C164E can be intermittent if the issue is related to loose connections, intermittent wiring problems, or a sporadically malfunctioning stop switch.