OBD Guide

P1E2A

Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage

P1E2A is an OBD-II diagnostic trouble code meaning: Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage. Common causes: open or short circuit in the sensor circuit, pump phase sensor malfunction. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine light comes on
  • Gear shifting problems
  • Unusual noises from the transmission
  • Reduced transmission efficiency

Causes

  • Open or short circuit in the sensor circuit
  • Pump phase sensor malfunction
  • Problems with the auxiliary pump itself
  • Poor contact in connectors
  • Problems with the transmission control unit

How to Fix

  1. Check the integrity of wiring and connectors
  2. Check the resistance of the pump phase sensor
  3. Check the operation of the auxiliary pump
  4. Scan the transmission control module for other errors
  5. If necessary, replace the sensor or pump

Related codes

FAQ

What does the P1E2A code mean?

P1E2A is an OBD-II diagnostic trouble code that indicates: Auxiliary Transmission Fluid Pump Phase U Current Sensor Circuit Low Voltage

What causes a P1E2A error code?

The most common causes of P1E2A include: Open or short circuit in the sensor circuit; Pump phase sensor malfunction; Problems with the auxiliary pump itself; Poor contact in connectors.

How do I fix a P1E2A diagnostic trouble code?

To fix P1E2A: Check the integrity of wiring and connectors. Check the resistance of the pump phase sensor. Check the operation of the auxiliary pump. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1E2A?

Yes, but get it checked soon

How much does it cost to fix P1E2A?

The estimated repair cost for P1E2A is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat