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P1AEA Buick Code - Drive Motor 2 Control Module Hybrid Battery Voltage Sense Circuit Low Voltage

Quick Answer

The Drive Motor Generator Power Inverter Module contains two drive motor control modules. Common causes include Faulty Drive Motor Generator Power Inverter Module, Drive Motor Generator Power Inverter Module harness is open or shorted, Drive Motor Generator Power Inverter 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: P1AEA Buick indicates Drive Motor 2 Control Module Hybrid Battery Voltage Sense Circuit Low Voltage.
Common causes: Common causes include Faulty Drive Motor Generator Power Inverter Module, Drive Motor Generator Power Inverter Module harness is open or shorted, Drive Motor Generator Power Inverter 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 1,100

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 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1AEA Buick Description

The Drive Motor Generator Power Inverter Module contains two drive motor control modules. Each drive motor control module monitors its internal high voltage sensor for correct operation, no external circuits are involved. The modules listed below are part of the drive motor generator power inverter module and are not serviced separately.
-Hybrid powertrain control module
-Motor control module 1
-Motor control module 2

OBDII Code P1AEA Buick - Drive Motor 2 Control Module Hybrid Battery Voltage Sense Circuit Low Voltage - AutoCodes.com — P1AEA Buick Code - Drive Motor 2 Control Module Hybrid Battery Voltage Sense Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1AEA Buick?

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

How to Fix the DTC P1AEA 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 P1AEA 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.

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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 P1AEA Buick Code

1. What does OBDII code P1AEA mean for a Buick?

Code P1AEA indicates a problem with the hybrid battery voltage sense circuit in Drive Motor 2 Control Module, specifically low voltage.

2. What are the symptoms of code P1AEA in a Buick?

Common symptoms include reduced hybrid performance, warning lights on the dashboard, poor fuel economy, or the vehicle entering limp mode.

3. What causes the P1AEA code to appear?

This code is typically caused by issues such as damaged wiring, a faulty Drive Motor 2 Control Module, a malfunctioning hybrid battery, or a poor electrical connection.

4. Can I drive my Buick with the P1AEA code?

Itâ€™s not recommended to drive with this code active, as it could lead to further damage to the hybrid system and reduced vehicle performance.

5. How do you diagnose the P1AEA code?

Diagnosis involves using an OBDII scanner to confirm the code, inspecting wiring and connections, testing the voltage sense circuit, and checking the hybrid battery and control module.

6. What repairs are needed to fix the P1AEA code?

Repairs may include replacing damaged wiring, repairing faulty connectors, replacing the Drive Motor 2 Control Module, or servicing the hybrid battery.

7. How much does it cost to repair the P1AEA code on a Buick?

Repair costs can vary widely depending on the issue but typically range from $200 for wiring repairs to over $1,000 if the hybrid battery or control module needs replacement.

8. Can a weak hybrid battery cause the P1AEA code?

Yes, a degraded or weak hybrid battery can cause low voltage in the sense circuit, triggering this code.

9. Will resetting the code fix the P1AEA issue?

Resetting the code may clear the warning temporarily, but the underlying issue must be addressed to prevent the code from returning.

10. Is the P1AEA code specific to Buicks?

While specific to hybrid or electric vehicles like Buicks, similar codes may appear in other brands with hybrid systems if they experience similar issues.