AutoCodes – Buick – P1E3A Buick

P1E3A Buick Code - Auxiliary Transmission Fluid Pump Motor Torque Delivered Performance

Quick Answer

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Common causes include Faulty Auxiliary Transmission Fluid Pump, Auxiliary Transmission Fluid Pump harness is open or shorted, Auxiliary Transmission Fluid Pump 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: P1E3A Buick indicates Auxiliary Transmission Fluid Pump Motor Torque Delivered Performance.
Common causes: Common causes include Faulty Auxiliary Transmission Fluid Pump, Auxiliary Transmission Fluid Pump harness is open or shorted, Auxiliary Transmission Fluid Pump 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 662

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 Apr 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E3A Buick Description

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Two of the motor control modules operate their respective drive motor generator based upon power inverter module commands. The third motor control module controls the auxiliary transmission fluid pump motor. The hybrid powertrain control module and the motor control modules share the power inverter module ignition voltage circuit, battery voltage circuits and chassis earth.

OBDII Code P1E3A Buick - Auxiliary Transmission Fluid Pump Motor Torque Delivered Performance - AutoCodes.com — P1E3A Buick Code - Auxiliary Transmission Fluid Pump Motor Torque Delivered Performance

What does this mean?

What are the Possible Causes of the DTC P1E3A Buick?

Faulty Auxiliary Transmission Fluid Pump
Auxiliary Transmission Fluid Pump harness is open or shorted
Auxiliary Transmission Fluid Pump circuit poor electrical connection

How to Fix the DTC P1E3A 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 P1E3A 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.

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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 P1E3A Buick Code

1. What does the OBDII code P1E3A mean for a Buick?

The P1E3A code indicates an issue with the Auxiliary Transmission Fluid Pump Motor Torque Delivered Performance, meaning the motor may not be delivering the expected torque.

2. What are the common symptoms of code P1E3A in a Buick?

Symptoms may include a transmission warning light, difficulty shifting gears, reduced fuel efficiency, or unusual transmission noise.

3. What causes the P1E3A code to appear in a Buick?

Common causes include a faulty auxiliary transmission fluid pump motor, wiring issues, low transmission fluid levels, or a malfunctioning transmission control module.

4. Can I drive my Buick with the P1E3A code active?

Driving with this code is not recommended, as it may lead to transmission overheating or failure if the auxiliary pump is not functioning properly.

5. How do you diagnose the P1E3A code on a Buick?

Diagnosis involves scanning for codes with an OBDII tool, inspecting the wiring and connections to the auxiliary pump, and testing the pump motor's functionality.

6. What repairs can fix the P1E3A code on a Buick?

Repairs may include replacing the auxiliary transmission fluid pump motor, repairing damaged wiring, updating the transmission control module software, or replenishing transmission fluid.

7. How much does it cost to fix the P1E3A code on a Buick?

Repair costs can vary but typically range from $200 to $800, depending on whether the auxiliary pump motor needs replacement and labor costs.

8. Can low transmission fluid cause the P1E3A code on a Buick?

Yes, low or contaminated transmission fluid can cause the auxiliary pump to underperform, triggering the P1E3A code.

9. Will clearing the P1E3A code fix the issue permanently?

No, clearing the code will only reset the warning temporarily. The underlying issue must be resolved to prevent the code from returning.

10. Does the P1E3A code affect all Buick models?

This code specifically affects Buick models equipped with an auxiliary transmission fluid pump, commonly found in hybrid or advanced transmission systems.