Obd codes 0731 and 0876

2005 DODGE RAM
214,566 MILES • 5.7L • V8 • 4WD • AUTOMATIC
Avatar
MARTYMAR
  • MEMBER
  • 1 POST
Truck will not move. Starts up fine but won't move.
Jun 9, 2022 at 9:40 PM
Advertisement
Avatar
SQM
  • Experienced Mechanic
  • 6,383 POSTS
Hello,

The codes
P0731 Gear Ratio Error in 1st
P0876 Pressure switch Rationality

These can get triggered due to a number of reasons.
It could be due to low fluid level, stuck main regulator valve, failed clutch, having low line pressure, faulty wiring for input sensor, cracked seal for the oil sump. It can also happen due to fault in the PCM.

I have attached the trouble shooting steps for these codes below.
Follow those steps as it can help you determine the issue.

Let me know what you find or if you have any questions.
Thank you.

https://www.2carpros.com/articles/automatic-transmission-problems
Jun 10, 2022 at 2:03 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.