AutoCodes – Honda – P15AA Honda

P15AA Honda Code - Motor Rotor Position Not Learned

Quick Answer

The Engine Control Module (ECM) monitors the Motor Rotor Position Sensor. Common causes include Faulty Motor Rotor Position Sensor, Motor Rotor Position Sensor harness is open or shorted, Motor Rotor Position Sensor 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: P15AA Honda indicates Motor Rotor Position Not Learned.
Common causes: Common causes include Faulty Motor Rotor Position Sensor, Motor Rotor Position Sensor harness is open or shorted, Motor Rotor Position Sensor 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 3,083

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 Jan 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P15AA Honda Description

The Engine Control Module (ECM) monitors the Motor Rotor Position Sensor. The ECM sets the OBDII code when the Motor Rotor Position Sensor is not to factory specifications.

OBDII Code P15AA Honda - Motor Rotor Position Not Learned - AutoCodes.com — P15AA Honda Code - Motor Rotor Position Not Learned

What does this mean?

What are the Possible Causes of the DTC P15AA Honda?

Faulty Motor Rotor Position Sensor
Motor Rotor Position Sensor harness is open or shorted
Motor Rotor Position Sensor circuit poor electrical connection

How to Fix the DTC P15AA Honda?

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 P15AA Honda 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 P15AA Honda 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 P15AA Honda Code

1. What are the common symptoms of OBDII code P15AA in a Honda indicating "Motor Rotor Position Not Learned"?

- Common symptoms include rough idling, stalling, poor acceleration, and illumination of the check engine light.

2. What does the OBDII code P15AA "Motor Rotor Position Not Learned" in a Honda mean?

- This code indicates that the engine control module (ECM) has not properly learned the position of the motor rotor within the hybrid system.

3. What are some possible causes of the OBDII code P15AA in a Honda?

- Possible causes include a faulty motor rotor position sensor, wiring issues, software glitches in the ECM, or a weak hybrid battery.

4. How can I diagnose the OBDII code P15AA "Motor Rotor Position Not Learned" in my Honda?

- Diagnosis typically involves using a diagnostic scanner to retrieve the code, checking the motor rotor position sensor, inspecting related wiring, and performing a system reset.

5. Can I continue driving my Honda with the OBDII code P15AA present?

- It is not recommended to drive your vehicle with this code as it can lead to further damage to the hybrid system components.

6. Is it possible to reset the OBDII code P15AA in a Honda without professional help?

- While it is possible to clear the code using a diagnostic scanner, it is important to diagnose and address the root cause of the issue to prevent the code from reappearing.

7. What are some repair tips for fixing the OBDII code P15AA in a Honda?

- Repair tips may include checking and repairing any damaged wiring, replacing the motor rotor position sensor if faulty, ensuring proper connection of components, and performing a system relearn procedure.

8. How much does it typically cost to repair the OBDII code P15AA in a Honda?

- The cost of repairs can vary depending on the exact cause of the code, but it may range from a few hundred to a few thousand dollars, especially if components like the hybrid battery need replacement.

9. Can a DIY enthusiast fix the OBDII code P15AA issue in a Honda?

- While some diagnostic and repair steps can be done by DIY enthusiasts, dealing with hybrid system components may require specialized tools and expertise, so it is recommended to consult a professional mechanic.

10. How important is it to address the OBDII code P15AA "Motor Rotor Position Not Learned" promptly in a Honda?

- It is crucial to address this code promptly to prevent further damage to the hybrid system components and ensure the proper functioning of your vehicle.