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Engine-Codes – Generic – P1E2A

P1E2A Code - Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage

Quick Answer

The diagnostic trouble code P1E2A indicates a problem with the Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit, specifically detecting low voltage. Common causes include Faulty auxiliary transmission fluid pump phase U current sensor, Damaged wiring or connectors in the sensor circuit, Low transmission fluid levels. 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
P1E2A indicates Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty auxiliary transmission fluid pump phase U current sensor, Damaged wiring or connectors in the sensor circuit, Low transmission fluid levels.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P1E2A Description

The diagnostic trouble code P1E2A indicates a problem with the Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit, specifically detecting low voltage. This sensor is responsible for monitoring the current levels in the auxiliary transmission fluid pump, which plays a crucial role in ensuring proper transmission function. The auxiliary transmission fluid pump helps maintain optimal fluid pressure and circulation within the transmission system, which is essential for smooth gear shifts and overall performance.

OBDII Code P1E2A - Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage
P1E2A Code - Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage

Common Causes of P1E2A

  1. Faulty auxiliary transmission fluid pump phase U current sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Low transmission fluid levels
  4. Electrical issues in the transmission system
  5. Malfunctioning auxiliary transmission fluid pump

Symptoms of P1E2A

  1. Erratic shifting behavior
  2. Harsh gear changes
  3. Transmission slipping
  4. Decreased fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P1E2A

  1. Diagnose the issue by using a diagnostic scanner to pinpoint the exact cause of the low voltage in the sensor circuit.
  2. Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as necessary.
  3. Test the auxiliary transmission fluid pump phase U current sensor to determine if it is faulty. Replace the sensor if needed.
  4. Check the transmission fluid levels and top up if necessary. Perform a transmission fluid flush and refill if the fluid is degraded.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P1E2A

The cost of repairing the Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage issue can vary depending on the specific cause of the problem and the extent of the repairs needed. On average, the parts required for this repair can range from $100 to $300, while the labor costs can range from $150 to $400. Overall, the total repair cost for this issue may fall between $250 and $700. However, it is essential to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the repair shop's rates. It is advisable to consult with a professional mechanic for a more accurate cost estimate.

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Code P1E2A Information for Specific Makes

  • P1E2A Acura — Brake Fluid Pressure Sensor PUR Circuit Low Voltage
  • P1E2A Buick — Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage
  • P1E2A Cadillac — Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage
  • P1E2A Chevrolet — Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage
  • P1E2A GMC — Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage
  • P1E2A Honda — Brake Fluid Pressure Sensor PUR Circuit Low Voltage
  • P1E2A Saturn — Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage
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 P1E2A Code

1. What are the common symptoms of OBDII code P1E2A?

The common symptoms of OBDII code P1E2A include poor shifting performance, transmission slipping, and the transmission going into limp mode.

2. What are the possible causes of OBDII code P1E2A?

Possible causes of OBDII code P1E2A include a faulty auxiliary transmission fluid pump, issues with the phase U current sensor circuit, low voltage in the sensor circuit, or wiring/connectivity issues.

3. How serious is OBDII code P1E2A?

OBDII code P1E2A should be addressed promptly to prevent further damage to the transmission system. Ignoring this code could lead to more severe transmission problems and potentially costly repairs.

4. Can I still drive my vehicle with OBDII code P1E2A present?

It is not recommended to drive your vehicle with OBDII code P1E2A present, as it can lead to further damage to the transmission system. It's best to have the issue diagnosed and repaired before driving the vehicle again.

5. How can I diagnose OBDII code P1E2A?

Diagnosing OBDII code P1E2A typically involves using a scan tool to retrieve the code, testing the auxiliary transmission fluid pump, checking the phase U current sensor circuit for faults, and inspecting the wiring/connectors for any issues.

6. Is it possible to repair OBDII code P1E2A on my own?

Repairing OBDII code P1E2A may require advanced automotive knowledge and specialized tools. It is recommended to have a professional mechanic diagnose and repair this code to ensure the issue is properly resolved.

7. How much does it cost to fix OBDII code P1E2A?

The cost of fixing OBDII code P1E2A can vary depending on the specific cause of the issue, labor rates, and the cost of parts. It's best to get a diagnostic from a trusted mechanic to get an accurate estimate.

8. Can a faulty auxiliary transmission fluid pump cause OBDII code P1E2A?

Yes, a faulty auxiliary transmission fluid pump can cause OBDII code P1E2A, as it plays a crucial role in the transmission system's operation and can affect the phase U current sensor circuit.

9. How can I prevent OBDII code P1E2A from occurring?

Regular maintenance of the transmission system, including checking the fluid levels and quality, can help prevent issues that may trigger OBDII code P1E2A. Additionally, addressing any transmission-related symptoms promptly can prevent more severe issues.

10. Is OBDII code P1E2A specific to certain vehicle makes and models?

OBDII code P1E2A can be found in various vehicle makes and models that utilize OBDII systems. However, the specific diagnostic and repair procedures may vary depending on the manufacturer and the transmission system design.

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