AutoCodes – Toyota – C1551 2015 Toyota RAV4

C1551 2015 Toyota RAV4 Code - Power Supply Voltage Malfunction

Quick Answer

The Power Steering ECU monitors itself for proper operation. Common causes include Power Steering ECU Fuse, Faulty Power Steering ECU, Power Steering ECU harness is open or shorted. 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: C1551 2015 Toyota RAV4 indicates Power Supply Voltage Malfunction.
Common causes: Common causes include Power Steering ECU Fuse, Faulty Power Steering ECU, Power Steering ECU harness is open or shorted.
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 178

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 22, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1551 2015 Toyota RAV4 Description

The Power Steering ECU monitors itself for proper operation. The Power Steering ECU sets the OBDII code when it detects an internal malfunction. The Power Steering ECU distinguishes the ignition switch status as ON or OFF through the IG power source circuit. The Diagnostic Trouble Code (DTC) will be set when an IG power source circuit malfunctions inside ECU.

OBDII Code C1551 2015 Toyota RAV4 - Power Supply Voltage Malfunction - AutoCodes.com — C1551 2015 Toyota RAV4 Code - Power Supply Voltage Malfunction

What does this mean?

What are the Possible Causes of the DTC C1551 2015 Toyota RAV4?

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

How to Fix the DTC C1551 2015 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 C1551 2015 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 C1551 2015 Toyota RAV4 code?

Need more information on how to fix the C1551 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 C1551 2015 Toyota RAV4 Code

1. What is OBDII code C1551 in a 2015 Toyota RAV4?

The OBDII code C1551 in a 2015 Toyota RAV4 indicates a Power Supply Voltage Malfunction related to the vehicle's electronic power steering system.

2. What are the common symptoms of OBDII code C1551 in a 2015 Toyota RAV4?

Common symptoms of OBDII code C1551 in a 2015 Toyota RAV4 may include difficulty steering, loss of power steering assistance, or a warning light on the dashboard.

3. What are the possible causes of OBDII code C1551 in a 2015 Toyota RAV4?

Possible causes of OBDII code C1551 in a 2015 Toyota RAV4 include a faulty electronic power steering control module, damaged wiring or connectors, or a weak battery.

4. How can I diagnose OBDII code C1551 in my 2015 Toyota RAV4?

Diagnosing OBDII code C1551 in a 2015 Toyota RAV4 may involve using a diagnostic scan tool to retrieve the fault code, checking the power steering system components for damage, and testing the battery voltage.

5. Can I still drive my 2015 Toyota RAV4 with OBDII code C1551?

It is not recommended to drive a 2015 Toyota RAV4 with OBDII code C1551, as it may lead to unsafe driving conditions due to potential power steering failure.

6. How can I repair OBDII code C1551 in my 2015 Toyota RAV4?

Repairing OBDII code C1551 in a 2015 Toyota RAV4 may involve replacing the electronic power steering control module, repairing damaged wiring or connectors, or ensuring the battery is in good condition.

7. Will resetting the OBDII code C1551 in my 2015 Toyota RAV4 solve the issue?

Resetting the OBDII code C1551 in a 2015 Toyota RAV4 may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to reappear.

8. How much does it cost to repair OBDII code C1551 in a 2015 Toyota RAV4?

The cost to repair OBDII code C1551 in a 2015 Toyota RAV4 can vary depending on the specific cause of the issue, but it may involve parts and labor expenses.

9. Can a DIY enthusiast fix OBDII code C1551 in a 2015 Toyota RAV4?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code C1551 in a 2015 Toyota RAV4, it is recommended to seek professional help for this issue due to its complexity and safety implications.