Chevrolet P1812: Transmission Fluid Over-Temperature
Is your scanner showing Chevrolet P1812?
No worries. We'll show you what it means and how to deal with it.
Chevrolet P1812: Transmission Fluid Over-Temperature
OVERVIEWWhat Does The Chevrolet P1812 Code Mean?
Engine started, and the PCM detected the Transmission Fluid Temperature (TFT) sensor indicated more than 266ºF for 7 minutes during the test.
What Are The Potential Causes Of The Chevrolet P1812 Code?
- ATF level is low or the fluid is burnt or contaminated
- ATF filter is clogged or not properly installed/seated
- A/T line pressure is low (check for clogged cooler lines)
- ECT sensor is contaminated or out-of-calibration (skewed)
- Engine is overheated
- Radiator
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> ACDelco Gold TF289 Automatic Transmission Fluid Filter Kit
>>> ACDelco GM Original Equipment 10-9243 Dexron VI Full Synthetic Automatic Transmission Fluid - 1 qt
>>> Dorman 624-558 Automatic Transmission Oil Cooler Hose Assembly
>>> ACDelco Professional 213-4514 Engine Coolant Temperature Sensor
>>> Chevrolet Radiator
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
GM, 2013, Service Bullettin – Prior To Any Circuit Testing.
