What the P0868 code means?
The P0868 code is a generic OBD-II code that detects a problem with the transmission fluid pressure. Transmission fluid serves to lubricate the transmission, and for vehicles with automatic transmissions, to cool the transmission system as well. When the powertrain control module (PCM) detects that the pressure of the transmission fluid is either too high or too low, the P0868 trouble code will be triggered.
What causes the P0868 code?
1. Internal transmission failure
2. Transmission Control Module (TCM) failure
3. Transmission fluid level is low
4. Transmission fluid pressure sensor failure
5. Wiring issue
What are the symptoms of the P0868 code?
A service engine soon lamp is usually accompanied by the distinctive smell of overheated transmission fluid. Smoke from the transmission area is also possible, as is transmission slippage, or lack of transmission engagement.
Common mistakes when diagnosing the P0868 code:
Misdiagnosis may range from one extreme to the other. Often, when this code is stored, a problem is incorrectly diagnosed as only a transmission fluid leak when a low fluid condition has allowed vital internal transmission components to be damaged. On the other end, the transmission does not necessarily need to be rebuilt just because it has overheated once.
What repairs can fix the P0868 code?
Fixing leaks in the transmission system
Transmission temperature sensor replacement
Transmission high pressure pump replacement
Transmission rebuilding or repairing