AutoCodes – GMC – P0AEF GMC

P0AEF GMC Code - Drive Motor Inverter Temperature Sensor Circuit Low Voltage

Quick Answer

The generator control module also called the starter generator control module is comprised of the following three control modules; the hybrid powertrain control module, 14 volt power module and the drive motor control module. Common causes include Faulty Starter Generator Control Module, Starter Generator Control Module harness is open or shorted, Starter Generator Control Module 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: P0AEF GMC indicates Drive Motor Inverter Temperature Sensor Circuit Low Voltage.
Common causes: Common causes include Faulty Starter Generator Control Module, Starter Generator Control Module harness is open or shorted, Starter Generator Control Module 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 528

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 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0AEF GMC Description

The generator control module also called the starter generator control module is comprised of the following three control modules; the hybrid powertrain control module, 14 volt power module and the drive motor control module. These three control modules are non serviceable and are part of the generator control module.
This is an internal fault detection of the generator control module. This fault is handled inside the generator control module and no external circuits are involved.

OBDII Code P0AEF GMC - Drive Motor Inverter Temperature Sensor Circuit Low Voltage - AutoCodes.com — P0AEF GMC Code - Drive Motor Inverter Temperature Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0AEF GMC?

Faulty Starter Generator Control Module
Starter Generator Control Module harness is open or shorted
Starter Generator Control Module circuit poor electrical connection

How to Fix the DTC P0AEF GMC?

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 P0AEF GMC 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 P0AEF GMC Code

1. What are the common symptoms of OBDII code P0AEF GMC?

- Common symptoms include poor vehicle performance, reduced fuel efficiency, and potential illumination of the Check Engine Light.

2. What does the OBDII code P0AEF GMC indicate?

- This code indicates a low voltage condition in the drive motor inverter temperature sensor circuit.

3. What are the possible causes of the Drive Motor Inverter Temperature Sensor Circuit Low Voltage code?

- Possible causes include a faulty temperature sensor, wiring issues, a malfunctioning inverter, or a problem with the powertrain control module.

4. How can I diagnose the cause of OBDII code P0AEF GMC?

- Diagnosing this code typically involves checking the condition of the temperature sensor, inspecting the wiring for any damage, and testing the inverter and related components.

5. Can I continue driving my vehicle with the P0AEF code?

- It is not recommended to continue driving your vehicle with this code active, as it can lead to further damage and potential safety issues.

6. How can I repair OBDII code P0AEF GMC?

- Repairing this code may involve replacing the drive motor inverter temperature sensor, repairing any damaged wiring, or addressing any issues with the inverter or powertrain control module.

7. Is it possible to reset the P0AEF code without fixing the underlying issue?

- Resetting the code without fixing the underlying issue is not recommended, as the problem will likely persist and could lead to more severe issues in the future.

8. Can a DIY enthusiast fix the Drive Motor Inverter Temperature Sensor Circuit Low Voltage problem?

- While some minor repairs may be possible for DIY enthusiasts, diagnosing and repairing issues related to this code may require specialized tools and expertise.

9. How much does it cost to repair OBDII code P0AEF GMC at a dealership or repair shop?

- The cost of repairing this code can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Are there any preventive measures to avoid encountering the Drive Motor Inverter Temperature Sensor Circuit Low Voltage code?

- Regular maintenance and inspections of the vehicle's electrical system, including the inverter and temperature sensor, can help prevent issues that may trigger this code.