AutoCodes – Generic – C15C5

C15C5 Code - Motor Revolution Angle Signal

Quick Answer

The steering actuator drives the internal motor using the current output from the steering control ECU to change the relative angle between the tire angle and steering wheel angle. Common causes include Faulty Steering Actuator, Steering Actuator harness is open or shorted, Steering Actuator 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: C15C5 indicates Motor Revolution Angle Signal.
Common causes: Common causes include Faulty Steering Actuator, Steering Actuator harness is open or shorted, Steering Actuator 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 1,448

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 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C15C5 Description

The steering actuator drives the internal motor using the current output from the steering control ECU to change the relative angle between the tire angle and steering wheel angle. The rotation angle sensor in the steering actuator detects the motor rotation angle and outputs this information to the steering control ECU.

OBDII Code C15C5 - Motor Revolution Angle Signal - AutoCodes.com — C15C5 Code - Motor Revolution Angle Signal

What does this mean?

What are the Possible Causes of the DTC C15C5?

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

How to Fix the DTC C15C5?

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 C15C5 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 C15C5 code?

Need more information on how to fix the C15C5 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C15C5 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C15C5 Lexus — Motor Revolution Angle Signal
C15C5 Toyota — Motor Revolution Angle Signal

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 C15C5 Code

1. What are the common symptoms of OBDII code C15C5 (Motor Revolution Angle Signal)?

- Common symptoms include rough idling, engine misfires, loss of power, and the Check Engine light illuminating on the dashboard.

2. What can cause the OBDII code C15C5 to appear?

- The code C15C5 typically appears due to issues with the motor revolution angle signal sensor or wiring, a faulty sensor, or a poor electrical connection.

3. How can I diagnose the OBDII code C15C5?

- Diagnosing the code involves using an OBDII scanner to retrieve the specific error codes, checking the motor revolution angle sensor and its wiring for any damage, and testing the sensor's functionality.

4. Can a dirty or faulty sensor cause the code C15C5 to trigger?

- Yes, a dirty or faulty motor revolution angle sensor can cause the code C15C5 to trigger as it may provide inaccurate or no signal to the engine control module.

5. What are some repair tips for fixing the OBDII code C15C5?

- Repair tips include cleaning the sensor to remove any dirt or debris, checking and repairing any damaged wiring, replacing the sensor if necessary, and ensuring all electrical connections are secure.

6. Is it safe to continue driving with the OBDII code C15C5 present?

- It is not recommended to continue driving with the code C15C5 present, as it can lead to further engine performance issues and potential damage if left unresolved.

7. Can a DIY enthusiast fix the OBDII code C15C5 at home?

- Depending on your skill level and access to tools, some DIY enthusiasts may be able to fix the code C15C5 at home by following repair guides and being cautious with electrical components.

8. How much does it typically cost to repair the OBDII code C15C5 at a mechanic or dealership?

- The cost of repairing the code C15C5 can vary depending on the extent of the issue, but it may range from $100 to $300 at a mechanic or dealership, including parts and labor.

9. Are there any recalls related to the OBDII code C15C5 in specific vehicle models?

- It's important to check with the manufacturer or your local dealership to see if there are any recalls related to the OBDII code C15C5 for your specific vehicle make and model.

10. How can I prevent the OBDII code C15C5 from reoccurring in the future?

- To prevent the code C15C5 from reoccurring, it's essential to regularly maintain your vehicle, keep the sensor clean, address any wiring issues promptly, and follow the manufacturer's recommended service schedule.