Engine-CodesSaturn – P1E31 Saturn

P1E31 Saturn Code - Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit High Voltage

Quick Answer

The P1E31 diagnostic trouble code (DTC) for Saturn vehicles specifically refers to an issue with the Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit registering a high voltage. Common causes include Faulty auxiliary transmission fluid pump, Wiring or connection issues in the current sensor circuit, Corrosion or damage to the sensor itself. 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
P1E31 Saturn indicates Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit High Voltage.
Common causes
Common causes include Faulty auxiliary transmission fluid pump, Wiring or connection issues in the current sensor circuit, Corrosion or damage to the sensor itself.
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.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P1E31 Saturn Description

The P1E31 diagnostic trouble code (DTC) for Saturn vehicles specifically refers to an issue with the Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit registering a high voltage. This sensor is responsible for monitoring the current flow in the auxiliary transmission fluid pump, which is crucial for maintaining proper fluid pressure and ensuring smooth gear shifts in the transmission system.

OBDII Code P1E31 Saturn - Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit High Voltage
P1E31 Saturn Code - Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit High Voltage

Common Causes of P1E31 Saturn

  1. Faulty auxiliary transmission fluid pump
  2. Wiring or connection issues in the current sensor circuit
  3. Corrosion or damage to the sensor itself
  4. Electrical system malfunctions
  5. Software glitches or calibration errors

Symptoms of P1E31 Saturn

  1. Rough or delayed shifting between gears
  2. Transmission slipping or jerking during acceleration
  3. Illumination of the Check Engine Light
  4. Reduced fuel efficiency
  5. Transmission overheating

How to Fix P1E31 Saturn

  1. Begin by conducting a thorough inspection of the auxiliary transmission fluid pump, current sensor circuit, and related wiring for any visible damage or loose connections.
  2. Test the current sensor using a multimeter to check for proper voltage readings and continuity.
  3. Replace the auxiliary transmission fluid pump if it is found to be faulty or damaged.
  4. Repair or replace any damaged wiring or connectors in the sensor circuit.
  5. Reset the DTC codes and perform a test drive to ensure the issue has been resolved and the transmission is functioning correctly.

Cost to Fix P1E31 Saturn

The cost of repairing a P1E31 code on a Saturn vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the parts required for this repair, such as a new auxiliary transmission fluid pump or sensor components, can range from $200 to $500. Additionally, labor costs at an auto repair shop typically range from $80 to $150 per hour, with the total repair time estimated at 2-3 hours. Therefore, the total cost for addressing this issue could range from $360 to $800, including parts and labor. It is advisable to consult with a qualified mechanic or dealership for a more accurate cost estimate based on your vehicle's make and model.

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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 P1E31 Saturn Code

1. What are the common symptoms of OBDII code P1E31 in a Saturn related to the Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit High Voltage?

- Common symptoms include the illumination of the Check Engine light, transmission shifting issues, and potential loss of power.

2. What are the possible causes of the OBDII code P1E31 in a Saturn?

- The code P1E31 in a Saturn may be triggered by a faulty auxiliary transmission fluid pump, issues with the current sensor circuit, damaged wiring, or a malfunctioning control module.

3. How can I diagnose the OBDII code P1E31 in my Saturn?

- Diagnosing the code P1E31 involves using an OBDII scanner to read the code, conducting a visual inspection of wiring and connectors, and performing voltage tests on the auxiliary transmission fluid pump and current sensor circuit.

4. Are there any DIY repair tips for addressing the OBDII code P1E31 in a Saturn?

- DIY repair tips may include checking and repairing any damaged wiring, ensuring proper connections, inspecting the auxiliary transmission fluid pump for functionality, and resetting the code after making repairs.

5. Can driving with the OBDII code P1E31 in a Saturn cause further damage?

- Continuing to drive with the code P1E31 in a Saturn may lead to transmission issues and potentially cause further damage to the vehicle's drivetrain components, so it is advisable to address the issue promptly.

6. How much does it typically cost to repair the OBDII code P1E31 in a Saturn at a dealership or mechanic?

- The cost of repairing the code P1E31 in a Saturn can vary depending on the extent of the issue, but it may range from $200 to $600 at a dealership or mechanic, including parts and labor.

7. Is it safe to continue driving my Saturn with the Check Engine light on due to the OBDII code P1E31?

- While it may be safe to drive the vehicle short distances, it is advisable to address the underlying issue causing the code P1E31 promptly to prevent potential transmission damage and ensure the vehicle operates properly.

8. How long does it typically take to repair the OBDII code P1E31 in a Saturn?

- Repairing the code P1E31 in a Saturn can take anywhere from a couple of hours to half a day, depending on the complexity of the issue and the availability of parts needed for the repair.

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