AutoCodes – Generic – P1E33

P1E33 Code - Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible

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: P1E33 indicates Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,002

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1E33 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.
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 P1E33 - Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible - AutoCodes.com — P1E33 Code - Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible

What does this mean?

What are the Possible Causes of the DTC P1E33?

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 P1E33?

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 P1E33 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 P1E33 code?

Need more information on how to fix the P1E33 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1E33 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1E33 Acura — Master Cylinder Cut Valve Incorrect Operation
P1E33 Buick — Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible
P1E33 Cadillac — Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible
P1E33 Chevrolet — Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible
P1E33 GMC — Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible
P1E33 Honda — Master Cylinder Cut Valve Incorrect Operation
P1E33 Saturn — Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible

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 P1E33 Code

1. What are the common symptoms of OBDII code P1E33?

The common symptoms of OBDII code P1E33 include rough shifting, transmission slipping, and the transmission going into limp mode.

2. What does the OBDII code P1E33 Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible mean?

The code P1E33 typically indicates an issue with the sensors that monitor the current flow in the auxiliary transmission fluid pump phases U, V, and W.

3. What are the possible causes of OBDII code P1E33?

Possible causes of code P1E33 include faulty sensors, wiring issues, a malfunctioning auxiliary transmission fluid pump, or a problem with the transmission control module.

4. How can I diagnose the OBDII code P1E33?

Diagnosing OBDII code P1E33 usually involves using a scan tool to retrieve the code, checking the sensors and wiring for any visible damage, and testing the auxiliary transmission fluid pump.

5. Can I still drive my vehicle with the OBDII code P1E33 present?

It is not recommended to drive your vehicle with the OBDII code P1E33 present, as it can lead to further damage to the transmission and affect the overall performance of the vehicle.

6. How can I repair OBDII code P1E33 Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible?

Repairing OBDII code P1E33 often involves replacing the faulty sensors, repairing any damaged wiring, checking the auxiliary transmission fluid pump for proper operation, and clearing the code with a scan tool.

7. Are there any DIY tips for fixing OBDII code P1E33?

While some aspects of diagnosing and repairing OBDII code P1E33 can be done by DIY enthusiasts, it is recommended to seek professional help due to the complexity of transmission-related issues.

8. How much does it cost to fix OBDII code P1E33?

The cost of fixing OBDII code P1E33 can vary depending on the specific cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts that may be needed.

9. Can OBDII code P1E33 be intermittent?

Yes, OBDII code P1E33 can sometimes be intermittent, meaning it may come and go depending on the conditions that trigger the fault in the transmission system.

10. Is it safe to reset the OBDII code P1E33 without fixing the underlying issue?

It is not recommended to simply reset the OBDII code P1E33 without addressing the underlying problem, as this can lead to ongoing transmission issues and potential safety hazards while driving.