AutoCodes – Generic – P1E2C

P1E2C Code - Auxiliary Transmission Fluid Pump Phase U Current Sensor 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 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: P1E2C indicates Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance.
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 1,173

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 P1E2C 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 P1E2C - Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance - AutoCodes.com — P1E2C Code - Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P1E2C?

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 P1E2C?

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 P1E2C 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 P1E2C code?

Need more information on how to fix the P1E2C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1E2C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1E2C Acura — Brake Fluid Pressure Sensor PL Circuit High Voltage
P1E2C Buick — Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance
P1E2C Cadillac — Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance
P1E2C Chevrolet — Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance
P1E2C GMC — Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance
P1E2C Honda — Brake Fluid Pressure Sensor PL Circuit High Voltage
P1E2C Saturn — Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance

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 P1E2C Code

1. What are common symptoms of OBDII code P1E2C - Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance?

The common symptoms include erratic shifting, transmission slipping, poor acceleration, and the illumination of the Check Engine Light.

2. What are the possible causes of OBDII code P1E2C?

Possible causes include a faulty auxiliary transmission fluid pump, damaged wiring or connectors in the transmission system, low transmission fluid level, or a malfunctioning current sensor.

3. How can I diagnose the issue related to code P1E2C?

Diagnosing the issue involves conducting a thorough inspection of the transmission system, checking the transmission fluid level and condition, and using a diagnostic scanner to retrieve and analyze the fault codes.

4. Can I continue driving with OBDII code P1E2C present?

It is not recommended to continue driving with this code present, as it can lead to further damage to the transmission system and potentially result in a complete transmission failure.

5. How can I repair OBDII code P1E2C - Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance?

Repairing this code may involve replacing the faulty auxiliary transmission fluid pump, repairing or replacing damaged wiring or connectors, ensuring the transmission fluid is at the correct level, and addressing any issues with the current sensor.

6. Is it possible to reset the OBDII code P1E2C without repairing the issue?

Resetting the code without addressing the underlying issue will only temporarily turn off the Check Engine Light. It is crucial to diagnose and repair the problem to prevent further damage to the transmission system.

7. How much does it typically cost to repair OBDII code P1E2C?

The cost of repairing this code can vary depending on the specific cause of the issue, the extent of the damage, and labor rates. It is recommended to consult with a professional mechanic for an accurate estimate.

8. Are there any preventive maintenance tips to avoid OBDII code P1E2C?

Regularly checking and maintaining the transmission fluid level, following the manufacturer's recommended service intervals, and addressing any transmission issues promptly can help prevent the occurrence of this code.

9. Can a DIY enthusiast fix OBDII code P1E2C at home?

While some aspects of diagnosing and repairing this code may be possible for experienced DIY enthusiasts, it is recommended to seek the expertise of a professional mechanic due to the complexity of transmission system repairs.

10. How long does it take to repair OBDII code P1E2C?

The repair time for this code can vary depending on the specific cause of the issue, the availability of parts, and the mechanic's expertise. In some cases, the repair may be completed in a few hours, while more extensive repairs could take longer.