AutoCodes – Generic – P1A50

P1A50 Code - Drive Motor 1 Control Module Random Access 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: P1A50 indicates Drive Motor 1 Control Module Random Access 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 1,886

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 P1A50 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 P1A50 - Drive Motor 1 Control Module Random Access Memory - AutoCodes.com — P1A50 Code - Drive Motor 1 Control Module Random Access Memory

What does this mean?

What are the Possible Causes of the DTC P1A50?

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 P1A50?

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 P1A50 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 P1A50 code?

Need more information on how to fix the P1A50 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1A50 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1A50 Buick — Drive Motor 1 Control Module Random Access Memory
P1A50 Cadillac — Drive Motor 1 Control Module Random Access Memory
P1A50 Chevrolet — Drive Motor 1 Control Module Random Access Memory
P1A50 GMC — Drive Motor 1 Control Module Random Access Memory

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 P1A50 Code

1. What are the common symptoms of OBDII code P1A50 (Drive Motor 1 Control Module Random Access Memory)?

The common symptoms of P1A50 may include poor vehicle performance, reduced fuel efficiency, and potential difficulties with acceleration.

2. What are the possible causes of OBDII code P1A50?

The possible causes of P1A50 can include issues with the drive motor control module, random access memory malfunctions, wiring problems, or software glitches.

3. How can I diagnose OBDII code P1A50?

Diagnosing P1A50 typically involves using an OBDII scanner to retrieve the fault code, inspecting the drive motor control module and related wiring, and potentially performing a memory reset or reprogramming.

4. Can I continue driving with OBDII code P1A50 present?

It is not recommended to continue driving with P1A50 present, as it can lead to further damage to the drive motor control system and potentially compromise vehicle safety.

5. How can I repair OBDII code P1A50?

Repairing P1A50 may involve resetting the memory, reprogramming the drive motor control module, repairing or replacing damaged wiring, or seeking assistance from a professional mechanic.

6. Are there any DIY tips for fixing OBDII code P1A50?

While some basic troubleshooting steps can be taken, such as checking for loose connections or resetting the memory, complex repairs related to the drive motor control module should be handled by a qualified technician.

7. How much does it cost to fix OBDII code P1A50?

The cost of repairing P1A50 can vary depending on the underlying issue, the extent of the damage, and labor rates in your area. It is advisable to obtain quotes from multiple mechanics for an accurate estimate.

8. Can OBDII code P1A50 cause other problems in my vehicle?

If left unresolved, P1A50 can potentially lead to further drive motor control module issues, affecting overall vehicle performance and drivability.

9. Is it safe to clear the OBDII code P1A50 without fixing the underlying issue?

Clearing the fault code without addressing the root cause can temporarily eliminate the warning light, but the issue may persist and lead to more severe problems over time.

10. How can I prevent OBDII code P1A50 from recurring?

Regular maintenance, timely repairs of drive motor components, and ensuring proper software updates can help prevent the recurrence of P1A50 in your vehicle.