AutoCodes – Chevrolet – P1A51 Chevrolet

P1A51 Chevrolet Code - Drive Motor 1 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: P1A51 Chevrolet indicates Drive Motor 1 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 1,228

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 P1A51 Chevrolet 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 P1A51 Chevrolet - Drive Motor 1 Control Module Read Only Memory - AutoCodes.com — P1A51 Chevrolet Code - Drive Motor 1 Control Module Read Only Memory

What does this mean?

What are the Possible Causes of the DTC P1A51 Chevrolet?

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 P1A51 Chevrolet?

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 P1A51 Chevrolet 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 P1A51 Chevrolet Code

1. What are common symptoms of OBDII code P1A51 in a Chevrolet related to the Drive Motor 1 Control Module Read Only Memory?

The common symptoms include reduced engine performance, rough idle, and illumination of the check engine light.

2. What are the possible causes of OBDII code P1A51 in a Chevrolet?

The code P1A51 in a Chevrolet can be caused by issues such as a faulty drive motor control module, a problem with the read-only memory, or damaged wiring in the control module circuit.

3. How can I diagnose OBDII code P1A51 in my Chevrolet related to the Drive Motor 1 Control Module Read Only Memory?

Diagnosing OBDII code P1A51 involves using a diagnostic scanner to retrieve the trouble codes, inspecting the drive motor control module and its connections, and checking the voltage levels in the circuit.

4. Can I still drive my Chevrolet with OBDII code P1A51 present?

It is not recommended to drive your Chevrolet with OBDII code P1A51 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 P1A51 in my Chevrolet related to the Drive Motor 1 Control Module Read Only Memory?

Repairing OBDII code P1A51 may involve resetting the control module, repairing or replacing damaged wiring, or replacing the drive motor control module altogether.

6. Is it possible to clear OBDII code P1A51 in a Chevrolet without repairing the underlying issue?

Clearing the code without addressing the root cause is not recommended, as the issue will likely resurface, and it may lead to more severe problems in the future.

7. Are there any DIY tips for resolving OBDII code P1A51 in a Chevrolet?

While some basic checks like inspecting the wiring connections can be done by DIY enthusiasts, diagnosing and repairing OBDII code P1A51 may require specialized tools and expertise best handled by a professional mechanic.

8. Can a faulty drive motor control module cause OBDII code P1A51 in a Chevrolet?

Yes, a faulty drive motor control module can indeed trigger OBDII code P1A51 in a Chevrolet, as it directly affects the operation of the Drive Motor 1 Control Module Read Only Memory.

9. How long does it typically take to repair OBDII code P1A51 in a Chevrolet?

The repair time for OBDII code P1A51 can vary depending on the exact cause of the issue and the extent of the repairs needed. It is best to consult with a mechanic for a more accurate estimate.

10. Can OBDII code P1A51 in a Chevrolet cause permanent damage if left unaddressed?

Leaving OBDII code P1A51 unaddressed can potentially lead to further damage to the drive motor control module and other related components, impacting the overall performance and safety of the vehicle.