AutoCodes – Buick – P0AEF Buick

P0AEF Buick 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 Buick 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 629
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 20, 2019
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Code P0AEF Buick 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 Buick - Drive Motor Inverter Temperature Sensor Circuit Low Voltage - AutoCodes.com
P0AEF Buick Code - Drive Motor Inverter Temperature Sensor Circuit Low Voltage

What are the Possible Causes of the DTC P0AEF Buick?

  • 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 Buick?

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 Buick 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 P0AEF Buick code?

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Need Help with the 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 P0AEF Buick Code

What does the OBDII code P0AEF mean for a Buick?

The P0AEF code indicates a problem with the Drive Motor Inverter Temperature Sensor Circuit, specifically low voltage being detected in the circuit.

What are the common symptoms of the P0AEF code?

Symptoms may include reduced hybrid or electric vehicle performance, illumination of the check engine light, or overheating issues in the drive motor inverter.

What causes the P0AEF code on a Buick?

Common causes include a faulty drive motor inverter temperature sensor, damaged wiring or connectors, or a malfunction in the hybrid control module.

Can I drive my Buick with the P0AEF code?

Driving with this code is not recommended as it may lead to reduced performance or damage to the hybrid system components due to improper cooling.

How is the P0AEF code diagnosed?

A technician will typically use a scan tool to confirm the code, inspect the wiring and connectors, and test the temperature sensor for proper operation.

How can I fix the P0AEF code on my Buick?

Repairs may involve replacing the drive motor inverter temperature sensor, repairing damaged wiring, or updating/reprogramming the hybrid control module.

How much does it cost to repair the P0AEF code on a Buick?

Repair costs vary but may range from $150 to $500, depending on whether the issue involves sensor replacement, wiring repair, or more complex diagnostics.

What tools are needed to troubleshoot the P0AEF code?

Common tools include an OBDII scanner, a multimeter to test voltage and continuity, and potentially specialized hybrid system diagnostic equipment.

Can the P0AEF code clear itself?

No, the code will not clear itself until the underlying issue is resolved and the system is reset using an OBDII scanner.

Is the P0AEF code specific to Buick vehicles?

No, the P0AEF code can appear on other hybrid or electric vehicles, but diagnostics and repairs may vary depending on the manufacturer.

Discuss the causes and fixes for P0AEF Buick OBDII Code

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