AutoCodes – Generic – P1E2F

P1E2F Code - Auxiliary Transmission Fluid Pump Phase V 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: P1E2F indicates Auxiliary Transmission Fluid Pump Phase V 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 1,012

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 P1E2F 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 P1E2F - Auxiliary Transmission Fluid Pump Phase V Current Sensor Performance - AutoCodes.com — P1E2F Code - Auxiliary Transmission Fluid Pump Phase V Current Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P1E2F?

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 P1E2F?

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 P1E2F 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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Information for Specific Makes

P1E2F Acura — Brake Fluid Pressure Sensor PLR Circuit Low Voltage
P1E2F Buick — Auxiliary Transmission Fluid Pump Phase V Current Sensor Performance
P1E2F Cadillac — Auxiliary Transmission Fluid Pump Phase V Current Sensor Performance
P1E2F Chevrolet — Auxiliary Transmission Fluid Pump Phase V Current Sensor Performance
P1E2F GMC — Auxiliary Transmission Fluid Pump Phase V Current Sensor Performance
P1E2F Honda — Brake Fluid Pressure Sensor PLR Circuit Low Voltage
P1E2F Saturn — Auxiliary Transmission Fluid Pump Phase V 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 P1E2F Code

1. What is OBDII code P1E2F?

* Code P1E2F indicates a malfunction in the Auxiliary Transmission Fluid Pump Phase V Current Sensor Performance, suggesting that the sensor is not performing within the expected range.

2. What are the common symptoms of code P1E2F?

* Symptoms can include a transmission that overheats, poor vehicle performance, unusual noises from the transmission area, and possibly the illumination of the check engine light.

3. What causes code P1E2F to be triggered?

* This code is typically triggered by a faulty auxiliary transmission fluid pump, a defective current sensor, wiring issues, or problems with the transmission control module.

4. How is code P1E2F diagnosed?

* Diagnosis involves using a scanner to read the fault codes and monitor live data, checking the wiring and connections for damage or corrosion, and testing the auxiliary transmission fluid pump and the current sensor to ensure they are functioning properly.

5. What are the potential repairs for fixing code P1E2F?

* Repairs can include replacing the auxiliary transmission fluid pump, repairing or replacing the current sensor, fixing any wiring issues, or in some cases, updating or replacing the transmission control module.

6. Can I drive my vehicle with code P1E2F displayed?

* While you may be able to drive with this code displayed, it is not advised as it can lead to further damage to the transmission system. It's best to address the issue as soon as possible.

7. Is code P1E2F a common issue in specific makes or models?

* Code P1E2F is not necessarily common and can occur in various vehicles, particularly those with advanced transmission systems that include auxiliary pumps for transmission fluid.

8. What tools are required to diagnose and repair code P1E2F?

* Tools needed might include a professional OBD-II scanner, multimeter, and basic hand tools. Sometimes more specialized equipment may be required depending on the depth of the repair.

9. How can I prevent code P1E2F from happening?

* Regular maintenance of your vehicleâ€™s transmission system, including timely changes of transmission fluid and inspections of the transmission system, can help prevent issues associated with code P1E2F.

10. What is the cost implication of repairing code P1E2F?

* The cost can vary widely depending on the specific repair needed. Simple sensor replacements might be relatively inexpensive, whereas more extensive repairs involving the auxiliary pump or transmission control module could be quite costly.