AutoCodes – Buick – P1A52 Buick

P1A52 Buick Code - Drive Motor 2 Control Module Not Programmed

Quick Answer

The drive motor control modules are internal to the Power Inverter Module, often referred to as the drive motor-generator Power Inverter Module, and are not serviced separately. Common causes include Faulty Power Inverter Module (PIM), Power Inverter Module (PIM) harness is open or shorted, Power Inverter Module (PIM) 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: P1A52 Buick indicates Drive Motor 2 Control Module Not Programmed.
Common causes: Common causes include Faulty Power Inverter Module (PIM), Power Inverter Module (PIM) harness is open or shorted, Power Inverter Module (PIM) 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 859

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 Aug 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1A52 Buick Description

The drive motor control modules are internal to the Power Inverter Module, often referred to as the drive motor-generator Power Inverter Module, and are not serviced separately. This fault is handled inside the drive motor control modules and no external circuits are involved. The Diagnostic Trouble Code (DTC) will set when the Power Inverter Module has detected an internal malfunction, or a service module has been installed but not yet programmed.

OBDII Code P1A52 Buick - Drive Motor 2 Control Module Not Programmed - AutoCodes.com — P1A52 Buick Code - Drive Motor 2 Control Module Not Programmed

What does this mean?

What are the Possible Causes of the DTC P1A52 Buick?

Faulty Power Inverter Module (PIM)
Power Inverter Module (PIM) harness is open or shorted
Power Inverter Module (PIM) circuit poor electrical connection

How to Fix the DTC P1A52 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 P1A52 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 P1A52 Buick 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 P1A52 Buick Code

1. What does the OBDII code P1A52 mean on a Buick?

Code P1A52 indicates that the Drive Motor 2 Control Module is not programmed or has lost its programming.

2. What are the common symptoms of code P1A52 in a Buick?

Symptoms may include reduced vehicle performance, warning lights such as the check engine light or hybrid system warning, and potential loss of electric motor functionality.

3. What causes the P1A52 code to appear?

Common causes include a control module that was not programmed during replacement, corrupted software, or a failure in the programming process.

4. Can I still drive my Buick with the P1A52 code active?

While the vehicle might still be drivable, it could experience reduced performance or loss of hybrid functionality. Itâ€™s best to address the issue promptly.

5. How is the P1A52 code diagnosed?

A technician will use a scan tool to confirm the code, check for communication with the Drive Motor 2 Control Module, and verify if the module programming is incomplete or corrupted.

6. How do you fix the P1A52 code on a Buick?

The module needs to be reprogrammed or reflashed using the manufacturerâ€™s software and a compatible scan tool.

7. Is replacing the Drive Motor 2 Control Module necessary for code P1A52?

Replacement is not always necessary unless the module is physically damaged or non-functional. Reprogramming is often sufficient.

8. What tools are required to resolve the P1A52 code?

Youâ€™ll need a GM-compatible scan tool and access to the manufacturerâ€™s programming software to reprogram the module.

9. Can a dead battery cause the P1A52 code to appear?

A dead or weak battery could potentially cause voltage issues that corrupt the module programming, triggering the code.

10. How much does it cost to fix the P1A52 code on a Buick?

Costs vary depending on the shop, but reprogramming typically ranges from $100 to $300. Replacing the module, if needed, can add significantly to the cost.