AutoCodes – Buick – P1E2E Buick

P1E2E Buick Code - Auxiliary Transmission Fluid Pump Phase V Current Sensor Circuit High Voltage

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 Program Power Inverter Module, Faulty Power Inverter Module, Power Inverter Module harness is open or shorted. 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: P1E2E Buick indicates Auxiliary Transmission Fluid Pump Phase V Current Sensor Circuit High Voltage.
Common causes: Common causes include Program Power Inverter Module, Faulty Power Inverter Module, Power Inverter Module harness is open or shorted.
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 864

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 P1E2E 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. This is an internal fault detection of the power inverter module. This fault is handled inside the power inverter module and no external circuits are involved.
Each motor control module operates its respective drive motor based upon hybrid powertrain control module commands. Each motor control module controls its respective motor through the sequencing actuation of high-current switching transistors called insulated gate bipolar transistors. Each motor operates utilising 3-phase alternating current AC electricity. Each insulated gate bipolar transistor operates a single phase of the drive motor generator. Each phase is individually identified as U, V and W. Each motor control module monitors the current of each phase in order to detect out of range current conditions.
Because each individual motor's phase circuits are electrically joined together, the phases normally flow about the same amount of current. The motor control module performs a mathematical calculation to verify that the phase current sensors are accurate. If the U-V-W phase current sensors indicate about the same amount of phase current, the sum of the calculation should be near zero. If the U-V-W phase currents are not similar, this DTC will set.

OBDII Code P1E2E Buick - Auxiliary Transmission Fluid Pump Phase V Current Sensor Circuit High Voltage - AutoCodes.com — P1E2E Buick Code - Auxiliary Transmission Fluid Pump Phase V Current Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1E2E Buick?

Program Power Inverter Module
Faulty Power Inverter Module
Power Inverter Module harness is open or shorted
Power Inverter Module circuit poor electrical connection

How to Fix the DTC P1E2E 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 P1E2E 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 P1E2E Buick Code

1. What are the common symptoms of OBDII code P1E2E in a Buick related to the Auxiliary Transmission Fluid Pump Phase V Current Sensor Circuit High Voltage?

The common symptoms include rough shifting, transmission slipping, illuminated check engine light, and potential transmission overheating.

2. What are the possible causes of OBDII code P1E2E in a Buick?

The code P1E2E in a Buick can be triggered by issues such as a faulty transmission fluid pump, damaged wiring or connectors, low transmission fluid level, or a malfunctioning transmission control module.

3. How can I diagnose the OBDII code P1E2E in my Buick?

Diagnosing the code P1E2E requires using an OBDII scanner to retrieve the specific fault code. Further diagnosis involves inspecting the transmission fluid pump, checking the wiring and connectors, and testing the transmission control module for proper functionality.

4. What are some repair tips for fixing OBDII code P1E2E in a Buick?

Repair tips for resolving the P1E2E code may include repairing or replacing the transmission fluid pump, repairing any damaged wiring or connectors, ensuring the transmission fluid level is correct, and reprogramming or replacing the transmission control module if necessary.

5. Can I continue driving my Buick with OBDII code P1E2E present?

It is not recommended to drive your Buick with the P1E2E code present, as it indicates a potential issue with the transmission fluid pump or related components. Continued driving may lead to further damage to the transmission or other drivetrain components.

6. How much does it typically cost to repair OBDII code P1E2E in a Buick?

The cost of repairing the P1E2E code in a Buick can vary depending on the specific issue causing the code. Costs may range from a few hundred dollars for minor repairs to over a thousand dollars for more involved repairs or component replacements.

7. Can I reset the OBDII code P1E2E in my Buick without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it is not recommended to do so without addressing the underlying problem. Resetting the code without fixing the issue can lead to recurring problems and potential damage to the transmission system.

8. How important is it to address OBDII code P1E2E promptly in a Buick?

It is crucial to address the P1E2E code promptly in a Buick to prevent further damage to the transmission system. Ignoring the code may lead to transmission failure, unsafe driving conditions, and costly repairs down the line.

9. Are there any preventive maintenance measures to avoid OBDII code P1E2E in a Buick?

Regularly checking and maintaining the transmission fluid level, ensuring proper transmission fluid quality, and addressing any transmission-related issues promptly can help prevent the occurrence of the P1E2E code in a Buick.

10. How long does it typically take to repair OBDII code P1E2E in a Buick?

The repair time for the P1E2E code in a Buick can vary depending on the specific issue and the complexity of the repair. Simple repairs may take a few hours, while more involved repairs may require a day or more at a repair shop.