AutoCodes – Toyota – C1581 2014 Toyota RAV4

C1581 2014 Toyota RAV4 Code - Assist Map Number Un-Writing

Quick Answer

The Power Steering ECU assembly outputs this Diagnostic Trouble Code (DTC) when it determines that the assist map is not written in the ECU. Common causes include Faulty Power Steering ECU, Power Steering ECU harness is open or shorted, Power Steering ECU 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: C1581 2014 Toyota RAV4 indicates Assist Map Number Un-Writing.
Common causes: Common causes include Faulty Power Steering ECU, Power Steering ECU harness is open or shorted, Power Steering ECU 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 224

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 Feb 26, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1581 2014 Toyota RAV4 Description

The Power Steering ECU assembly outputs this Diagnostic Trouble Code (DTC) when it determines that the assist map is not written in the ECU. Replacing the Power Steering ECU assembly when this code is output is necessary because this malfunction cannot be repaired.

OBDII Code C1581 2014 Toyota RAV4 - Assist Map Number Un-Writing - AutoCodes.com — C1581 2014 Toyota RAV4 Code - Assist Map Number Un-Writing

What does this mean?

What are the Possible Causes of the DTC C1581 2014 Toyota RAV4?

Faulty Power Steering ECU
Power Steering ECU harness is open or shorted
Power Steering ECU circuit poor electrical connection

How to Fix the DTC C1581 2014 Toyota RAV4?

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 C1581 2014 Toyota RAV4 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 C1581 2014 Toyota RAV4 code?

Need more information on how to fix the C1581 2014 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1581 2014 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area

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 C1581 2014 Toyota RAV4 Code

1. What is OBDII code C1581 in a 2014 Toyota RAV4?

The OBDII code C1581 in a 2014 Toyota RAV4 is titled "Assist Map Number Un-Writing."

2. What are the common symptoms of OBDII code C1581 in a 2014 Toyota RAV4?

Common symptoms of code C1581 may include issues with the vehicle's electronic power steering system, such as stiff or difficult steering.

3. What are the possible causes of OBDII code C1581 in a 2014 Toyota RAV4?

Possible causes of code C1581 can include a malfunction in the steering assist control module, wiring issues, or a faulty steering angle sensor.

4. How can I diagnose OBDII code C1581 in my 2014 Toyota RAV4?

Diagnosing code C1581 typically involves using a professional OBDII scanner to read the code, checking the electronic power steering system components, and inspecting the wiring for any visible damage.

5. Can OBDII code C1581 in a 2014 Toyota RAV4 be fixed at home?

Fixing code C1581 may require advanced diagnostic equipment and expertise, so it is recommended to have a qualified mechanic inspect and repair the issue.

6. Is it safe to drive my 2014 Toyota RAV4 with OBDII code C1581?

If you are experiencing steering-related symptoms like stiff steering, it is not safe to drive your vehicle with OBDII code C1581. Have the issue addressed by a professional before driving the vehicle again.

7. How much does it typically cost to repair OBDII code C1581 in a 2014 Toyota RAV4?

The cost of repairing code C1581 can vary depending on the exact cause of the issue, but it may involve replacing components in the electronic power steering system, which can range from a few hundred to over a thousand dollars.

8. Can a low battery voltage trigger OBDII code C1581 in a 2014 Toyota RAV4?

Yes, a low battery voltage can potentially trigger code C1581 or other electronic control module-related codes in a vehicle.

9. Will resetting the OBDII system clear code C1581 in a 2014 Toyota RAV4?

Resetting the OBDII system may clear the code temporarily, but if the underlying issue is not addressed, the code is likely to return. It is important to diagnose and fix the root cause of the problem.

10. How long does it take to repair OBDII code C1581 in a 2014 Toyota RAV4?

The repair time for code C1581 can vary depending on the specific cause of the issue and the availability of parts. It is best to consult with a mechanic for a more accurate estimate of the repair time.