AutoCodes – Chevrolet – P0A45 Chevrolet

P0A45 Chevrolet Code - Drive Motor 2 Position Sensor Circuit

Quick Answer

The drive motor generator position sensor is monitored by the motor control module. Common causes include Faulty Drive Motor Generator, Drive Motor Generator harness is open or shorted, Drive Motor Generator 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: P0A45 Chevrolet indicates Drive Motor 2 Position Sensor Circuit.
Common causes: Common causes include Faulty Drive Motor Generator, Drive Motor Generator harness is open or shorted, Drive Motor Generator 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 2,317

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 Mar 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0A45 Chevrolet Description

The drive motor generator position sensor is monitored by the motor control module. The motor control module monitors the angular position, speed and direction of the drive motor generator rotor based upon the signals of the resolver-type position sensor. The position sensor contains a drive coil, two driven coils and an irregular shaped metallic rotor. The metallic rotor is mechanically attached to the shaft of the drive motor generator. At vehicle ON, the motor control module outputs a 7 volt ac, 10 kHz excitation signal to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the two driven coils and the irregular shaped rotor. The motor control module then monitors the two driven coil circuits for a return signal. The position of the irregular metallic rotor causes the magnetically-induced return signals of the driven coils to vary in size and shape. A comparison of the two driven coils signals allows the motor control module to determine the exact position, speed and direction of the drive motor generator rotor. The position sensor is a non-serviceable part of the drive motor generator.

OBDII Code P0A45 Chevrolet - Drive Motor 2 Position Sensor Circuit - AutoCodes.com — P0A45 Chevrolet Code - Drive Motor 2 Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P0A45 Chevrolet?

Faulty Drive Motor Generator
Drive Motor Generator harness is open or shorted
Drive Motor Generator circuit poor electrical connection

How to Fix the DTC P0A45 Chevrolet?

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 P0A45 Chevrolet 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.

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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 P0A45 Chevrolet Code

1. What are the common symptoms of OBDII code P0A45 in a Chevrolet related to the Drive Motor 2 Position Sensor Circuit?

Common symptoms include poor acceleration, reduced power output, and potentially triggering the vehicle to enter a reduced power mode.

2. What are some possible causes of OBDII code P0A45 related to the Drive Motor 2 Position Sensor Circuit in a Chevrolet?

Possible causes include a faulty drive motor 2 position sensor, damaged wiring or connectors in the circuit, or issues with the hybrid powertrain system.

3. How can I diagnose the OBDII code P0A45 Drive Motor 2 Position Sensor Circuit issue in my Chevrolet?

Diagnosis typically involves using a diagnostic scanner to retrieve the fault code, performing a visual inspection of the wiring and connectors, and testing the drive motor 2 position sensor for proper functionality.

4. Can I continue driving my Chevrolet with OBDII code P0A45 related to the Drive Motor 2 Position Sensor Circuit?

It is not recommended to continue driving the vehicle with this issue, as it can lead to further damage to the hybrid powertrain system and potentially unsafe driving conditions.

5. How can I repair OBDII code P0A45 related to the Drive Motor 2 Position Sensor Circuit in my Chevrolet?

Repair options may include replacing the drive motor 2 position sensor, repairing or replacing damaged wiring or connectors, and clearing the fault code using a diagnostic scanner.

6. Is it possible to reset the OBDII code P0A45 related to the Drive Motor 2 Position Sensor Circuit in a Chevrolet without fixing the underlying issue?

While you can clear the fault code temporarily, it is essential to address the root cause of the problem to prevent the code from reoccurring.

7. Can a DIY enthusiast perform the repair for OBDII code P0A45 in a Chevrolet related to the Drive Motor 2 Position Sensor Circuit?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to replace the drive motor 2 position sensor or repair wiring issues. However, it is recommended to consult a professional if you are unsure.

8. Are there any maintenance tips to prevent OBDII code P0A45 related to the Drive Motor 2 Position Sensor Circuit in a Chevrolet?

Regularly inspecting the hybrid powertrain components, keeping up with scheduled maintenance, and addressing any issues promptly can help prevent this code from appearing.

9. How long does it typically take to repair OBDII code P0A45 related to the Drive Motor 2 Position Sensor Circuit in a Chevrolet?

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

10. Will fixing OBDII code P0A45 related to the Drive Motor 2 Position Sensor Circuit in a Chevrolet improve the vehicle's performance?

Yes, addressing this code can help restore proper functionality to the drive motor 2 position sensor, potentially improving acceleration and power output in the vehicle.