OBD Guide

P079E

Transmission Friction Element E Slip Detected

P079E is an OBD-II diagnostic trouble code meaning: Transmission Friction Element E Slip Detected. Common causes: wear of friction elements, low transmission fluid level. Estimated repair cost: $44–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$44–278 (est.)

Symptoms

  • Delays or jerks when shifting gears
  • Loss of power when accelerating
  • Gear slip
  • Transmission overheating
  • Check engine light comes on

Causes

  • Wear of friction elements
  • Low transmission fluid level
  • ATF contamination or degradation
  • Hydraulic pressure problems
  • Shift solenoids malfunction

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Conduct pressure diagnostics in the hydraulic system
  3. Check operation of shift solenoids
  4. Perform gearbox adaptation (if supported)
  5. If necessary, replace friction elements

Related codes

Error P079E by Vehicle Brand

FAQ

What does the P079E code mean?

P079E is an OBD-II diagnostic trouble code that indicates: Transmission Friction Element E Slip Detected

What causes a P079E error code?

The most common causes of P079E include: Wear of friction elements; Low transmission fluid level; ATF contamination or degradation; Hydraulic pressure problems.

How do I fix a P079E diagnostic trouble code?

To fix P079E: Check the level and condition of the transmission fluid. Conduct pressure diagnostics in the hydraulic system. Check operation of shift solenoids. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P079E?

Limited driving only, diagnose soon

How much does it cost to fix P079E?

The estimated repair cost for P079E is $44–278. Actual cost depends on your vehicle, location, and labor rates.

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