AutoCodes – Toyota – C164A Toyota

C164A Toyota Code - EPS Communication Malfunction

Quick Answer

The power steering system receives advanced parking guidance system information from the Parking Assist ECU via CAN communication. Common causes include Faulty Parking Assist ECU, Faulty Power Steering ECU. 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: C164A Toyota indicates EPS Communication Malfunction.
Common causes: Common causes include Faulty Parking Assist ECU, Faulty Power Steering ECU.
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 2,829

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 C164A Toyota Description

The power steering system receives advanced parking guidance system information from the Parking Assist ECU via CAN communication. This Diagnostic Trouble Code (DTC) is stored if the Parking Assist ECU receives abnormal signals from the power steering ECU.

OBDII Code C164A Toyota - EPS Communication Malfunction - AutoCodes.com — C164A Toyota Code - EPS Communication Malfunction

What does this mean?

What are the Possible Causes of the DTC C164A Toyota?

Faulty Parking Assist ECU
Faulty Power Steering ECU

How to Fix the DTC C164A Toyota?

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 C164A Toyota 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 C164A Toyota Code

1. What are the common symptoms of OBDII code C164A in a Toyota indicating EPS Communication Malfunction?

The common symptoms include the EPS warning light illuminating on the dashboard, difficulty steering, and an overall decrease in power steering assistance.

2. What are the possible causes of OBDII code C164A related to EPS Communication Malfunction in a Toyota?

Potential causes include a faulty electric power steering control module, damaged wiring or connectors in the EPS system, or a communication issue between components.

3. How can I diagnose the EPS Communication Malfunction related to OBDII code C164A in my Toyota?

Diagnosing the issue involves using a diagnostic scanner to retrieve the specific trouble codes, checking the wiring and connectors for any visible damage, and performing a thorough inspection of the electric power steering system.

4. Is it safe to continue driving my Toyota with OBDII code C164A indicating EPS Communication Malfunction?

It is not recommended to continue driving the vehicle with this issue, as it may lead to a sudden loss of power steering assistance, making it difficult to control the vehicle.

5. Can I reset the OBDII code C164A related to EPS Communication Malfunction in my Toyota by disconnecting the battery?

While disconnecting the battery may temporarily clear the code, it is important to address the underlying issue causing the malfunction to prevent it from recurring.

6. How can I repair OBDII code C164A linked to EPS Communication Malfunction in my Toyota?

Repairing the issue may involve replacing the faulty electric power steering control module, repairing damaged wiring or connectors, or addressing any communication issues within the EPS system.

7. Are there any common DIY tips for troubleshooting OBDII code C164A in a Toyota with EPS Communication Malfunction?

DIY tips include checking the EPS fuse, ensuring proper ground connections, and inspecting the EPS wiring harness for any signs of wear or damage.

8. How much does it typically cost to repair OBDII code C164A indicating EPS Communication Malfunction in a Toyota?

The cost of repair can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can a professional mechanic help with diagnosing and repairing OBDII code C164A related to EPS Communication Malfunction in my Toyota?

Yes, a professional mechanic with experience in diagnosing and repairing electric power steering systems can help identify the root cause of the issue and perform the necessary repairs.

10. Will fixing OBDII code C164A in my Toyota resolve the EPS Communication Malfunction permanently?

Correctly diagnosing and repairing the underlying cause of the code should resolve the EPS Communication Malfunction, restoring proper power steering function to your Toyota.