AutoCodes – Generic – P1A53

P1A53 Code - Drive Motor 2 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: P1A53 indicates Drive Motor 2 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 1,823

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 P1A53 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 P1A53 - Drive Motor 2 Control Module Random Access Memory - AutoCodes.com — P1A53 Code - Drive Motor 2 Control Module Random Access Memory

What does this mean?

What are the Possible Causes of the DTC P1A53?

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 P1A53?

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 P1A53 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 P1A53 code?

Need more information on how to fix the P1A53 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1A53 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1A53 Buick — Drive Motor 2 Control Module Random Access Memory
P1A53 Cadillac — Drive Motor 2 Control Module Random Access Memory
P1A53 Chevrolet — Drive Motor 2 Control Module Random Access Memory
P1A53 GMC — Drive Motor 2 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 P1A53 Code

1. What are common symptoms of OBDII code P1A53 (Drive Motor 2 Control Module Random Access Memory)?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential illumination of the check engine light.

2. What can cause OBDII code P1A53 to trigger?

- This code can be triggered by issues such as a faulty drive motor 2 control module, electrical wiring problems, or disruptions in the control module's random access memory.

3. How serious is OBDII code P1A53?

- While the vehicle may still be driveable with this code, it is important to address it promptly to prevent further damage to the drive motor 2 control module and ensure optimal performance of the hybrid system.

4. Can I continue driving my vehicle with OBDII code P1A53?

- It is recommended to address the underlying issue causing the code as soon as possible to prevent potential long-term damage to the hybrid system components and maintain optimal vehicle performance.

5. How can OBDII code P1A53 be diagnosed?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the code and then conducting further testing to pinpoint the exact cause, which may require specialized equipment and expertise.

6. What are some repair tips for OBDII code P1A53?

- Repair tips may include checking and repairing any damaged wiring, ensuring proper connections to the drive motor 2 control module, and potentially replacing the control module if deemed necessary.

7. Can resetting the OBDII system clear code P1A53?

- Resetting the OBDII system may temporarily clear the code, but it is crucial to address the underlying issue causing the code to prevent it from reoccurring.

8. Is it safe to ignore OBDII code P1A53?

- Ignoring this code can lead to potential performance issues with the hybrid system and may result in further damage to the drive motor 2 control module if left unresolved.

9. How much does it typically cost to repair OBDII code P1A53?

- The cost of repairing this code can vary depending on the root cause of the issue, the extent of the damage, and whether any components need to be replaced. It is advisable to consult a professional for an accurate estimate.

10. Can a DIY enthusiast fix OBDII code P1A53 at home?

- While some basic troubleshooting and repairs may be possible for experienced DIY enthusiasts, diagnosing and repairing complex issues related to the drive motor 2 control module and random access memory may require professional expertise and specialized tools.