AutoCodesToyota – C1552 2015 Toyota RAV4

C1552 2015 Toyota RAV4 Code - Power Source circuit Malfunction Inside Power Steering ECU

Quick Answer

When a problem occurs in the power steering system, the power source relay circuit is shut off to stop the power assist. 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
C1552 2015 Toyota RAV4 indicates Power Source circuit Malfunction Inside Power Steering ECU.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 208
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Feb 22, 2023
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Code C1552 2015 Toyota RAV4 Description

When a problem occurs in the power steering system, the power source relay circuit is shut off to stop the power assist. The Power Steering ECU monitors the Power Supply Voltage. The Power Steering ECU sets the OBDII code when the Power Supply Voltage is not to factory specifications.
OBDII Code C1552 2015 Toyota RAV4 - Power Source circuit Malfunction Inside Power Steering ECU - AutoCodes.com
C1552 2015 Toyota RAV4 Code - Power Source circuit Malfunction Inside Power Steering ECU

What are the Possible Causes of the DTC C1552 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 C1552 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1552 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 C1552 2015 Toyota RAV4 code?

Need more information on how to fix the C1552 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1552 2015 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 C1552 2015 Toyota RAV4 Code

1. What does the OBDII code C1552 mean on a 2015 Toyota RAV4?

C1552 indicates a Power Source Circuit Malfunction inside the Power Steering ECU, meaning there is an issue with the electrical power supply to the electronic power steering system.

2. What are the symptoms of code C1552 on a Toyota RAV4?

Common symptoms include a loss of power steering assist, a heavier steering feel, the EPS warning light on the dashboard, and possible intermittent steering issues.

3. What causes the C1552 code to appear?

This code is typically caused by a faulty or disconnected power supply to the Power Steering ECU, damaged wiring, a blown fuse, a weak battery, or a malfunctioning Power Steering ECU.

4. Can I drive my 2015 Toyota RAV4 with the C1552 code?

While the vehicle can still be driven, it may require significantly more effort to steer, especially at low speeds. Driving with this issue is not recommended as it can compromise safety.

5. How do I diagnose the C1552 code?

Start by inspecting the battery, fuses (especially the EPS fuse), and wiring for damage or loose connections. If no physical issues are found, test the power and ground signals to the Power Steering ECU using a multimeter.

6. What are common fixes for the C1552 code?

Common repairs include replacing blown fuses, repairing damaged wiring, ensuring proper connections, or replacing the Power Steering ECU if it is determined to be faulty.

7. Can a weak battery cause the C1552 code?

Yes, a weak or failing battery can result in insufficient power to the Power Steering ECU, triggering the C1552 code.

8. How much does it cost to fix code C1552 on a Toyota RAV4?

The repair cost depends on the root cause. Replacing a fuse or repairing wiring may cost under $100, while replacing the Power Steering ECU can cost $500–$1,500 including parts and labor.

9. Does the C1552 code require recalibration after repairs?

If the Power Steering ECU is replaced, recalibration or reprogramming may be necessary to ensure proper communication with other vehicle systems. Check the repair manual for specific procedures.

10. Can an aftermarket scan tool reset the C1552 code?

Most aftermarket scan tools can clear the code, but the underlying issue must be resolved first to prevent the code and symptoms from returning.

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