AutoCodes – GMC – P1A54 GMC

P1A54 GMC Code - Drive Motor 2 Control Module Read Only Memory

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: P1A54 GMC indicates Drive Motor 2 Control Module Read Only Memory.
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 1,189

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 P1A54 GMC 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 P1A54 GMC - Drive Motor 2 Control Module Read Only Memory - AutoCodes.com — P1A54 GMC Code - Drive Motor 2 Control Module Read Only Memory

What does this mean?

What are the Possible Causes of the DTC P1A54 GMC?

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 P1A54 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 P1A54 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.

Need more information about the P1A54 GMC 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 P1A54 GMC Code

1. What are common symptoms of OBDII code P1A54 GMC (Drive Motor 2 Control Module Read Only Memory)?

- Common symptoms include reduced engine performance, hesitation during acceleration, and the illumination of the check engine light.

2. What are possible causes of OBDII code P1A54 GMC?

- Possible causes include a faulty drive motor control module, issues with the read-only memory, wiring problems, or software glitches.

3. How can I diagnose OBDII code P1A54 GMC?

- Diagnosis typically involves using a diagnostic scanner to retrieve the fault code, inspecting wiring connections, and testing the drive motor control module.

4. Can I continue driving with OBDII code P1A54 GMC present?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the drive motor control module and affect the vehicle's performance.

5. How can I repair OBDII code P1A54 GMC?

- Repair options may include reprogramming the drive motor control module, replacing faulty components, checking and fixing wiring issues, or seeking assistance from a professional technician.

6. Is OBDII code P1A54 GMC a common issue in GMC vehicles?

- While not extremely common, some GMC vehicles may experience this code, especially in hybrid or electric models with drive motor control modules.

7. Can a DIY enthusiast fix OBDII code P1A54 GMC at home?

- Depending on the underlying cause, some DIY enthusiasts with the necessary tools and expertise may be able to address this code at home. However, complex issues may require professional help.

8. What happens if I ignore OBDII code P1A54 GMC?

- Ignoring this code can lead to decreased fuel efficiency, engine performance issues, and potential long-term damage to the drive motor control module.

9. Are there any preventive measures to avoid OBDII code P1A54 GMC?

- Regular vehicle maintenance, such as checking and cleaning electrical connections, updating software as recommended by the manufacturer, and monitoring performance can help prevent this code.

10. How long does it typically take to repair OBDII code P1A54 GMC?

- The repair time can vary depending on the cause of the issue and the complexity of the repair. It may take anywhere from a few hours to a day or more to address this code effectively.