Error code

OBD2 P0868

OBD2P0868
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Transmission Fluid Pressure Low.

Severity

highNot recommended; driving could cause transmission damage.

Summary

P0868 indicates low transmission fluid pressure in the automatic transmission system.

Symptoms

  • Stored trouble code and illuminated warning light
  • Varying degrees of transmission slippage
  • Transmission may not engage some or any gears
  • Transmission overheating
  • Transmission locked into fail-safe mode

Common Causes

  • Defective transmission fluid pressure sensor
  • Damaged, burnt, shorted, disconnected, or corroded wiring and/or connectors
  • Low fluid levels due to leaks
  • Dirty, contaminated, or degraded transmission fluid
  • Mechanical failure of the transmission pump

Diagnosis

  1. Check and top off transmission fluid level if low.
  2. Inspect wiring, connectors, and sensor for damage or corrosion.
  3. Perform electrical tests on the pressure sensor and its circuitry.
  4. Replace faulty parts as identified.

Fixes

  • Replace defective transmission fluid pressure sensor— $100

FAQ

How serious is P0868?

P0868 should be considered serious as it can lead to severe transmission damage if not addressed.

Can I drive with P0868?

It's not recommended to drive the car with this code, as sudden transmission failure could occur and cause accidents.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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