OBD Guide

P27E1

Electric/Auxiliary Transmission Fluid Pump A Pressure Too Low

P27E1 is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump A Pressure Too Low. Common causes: electrical transmission fluid pump malfunction, low transmission fluid level. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Gear shifting problems
  • Hard or delayed shifts
  • Noise from transmission fluid pump
  • Reduced transmission efficiency

Causes

  • Electrical transmission fluid pump malfunction
  • Low transmission fluid level
  • Contaminated or old transmission fluid
  • Problems with the pump electrical circuit
  • Pressure sensor malfunction

How to Fix

  1. Check the transmission fluid level and add if necessary
  2. Check the condition of the transmission fluid and replace if necessary
  3. Check the electrical circuit of the pump for breaks or short circuits
  4. Check the operation of the transmission fluid pump
  5. Check and, if necessary, replace the pressure sensor

Related codes

Error P27E1 by Vehicle Brand

FAQ

What does the P27E1 code mean?

P27E1 is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump A Pressure Too Low

What causes a P27E1 error code?

The most common causes of P27E1 include: Electrical transmission fluid pump malfunction; Low transmission fluid level; Contaminated or old transmission fluid; Problems with the pump electrical circuit.

How do I fix a P27E1 diagnostic trouble code?

To fix P27E1: Check the transmission fluid level and add if necessary. Check the condition of the transmission fluid and replace if necessary. Check the electrical circuit of the pump for breaks or short circuits. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P27E1?

Limited driving only, diagnose soon

How much does it cost to fix P27E1?

The estimated repair cost for P27E1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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