P079A
Transmission Friction Element A Slip Detected
P079A is an OBD-II diagnostic trouble code meaning: Transmission Friction Element A Slip Detected. Common causes: low transmission fluid level, worn friction linings. Estimated repair cost: $56–278.
Symptoms
- Delays when shifting gears
- Slipping when accelerating
- Unexpected shifts to neutral
- Increased engine speed without increasing speed
- Check engine light comes on
Causes
- Low transmission fluid level
- Worn friction linings
- Contaminated or degraded transmission fluid
- Hydraulic pressure problems
- Mechanical damage in the gearbox
How to Fix
- Check the level and condition of the transmission fluid
- Replace transmission fluid and filter if necessary
- Conduct hydraulic pressure diagnostics
- Check the condition of the friction elements
- If necessary, replace damaged gearbox components
Related codes
Error P079A by Vehicle Brand
FAQ
What does the P079A code mean?
P079A is an OBD-II diagnostic trouble code that indicates: Transmission Friction Element A Slip Detected
What causes a P079A error code?
The most common causes of P079A include: Low transmission fluid level; Worn friction linings; Contaminated or degraded transmission fluid; Hydraulic pressure problems.
How do I fix a P079A diagnostic trouble code?
To fix P079A: Check the level and condition of the transmission fluid. Replace transmission fluid and filter if necessary. Conduct hydraulic pressure diagnostics. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P079A?
Do not drive — repair immediately
How much does it cost to fix P079A?
The estimated repair cost for P079A is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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