What causes a P112900 code?

P112900 can be triggered by several issues — see the verified probable causes and step-by-step diagnostics shared by mechanics and owners on OBDIY.

Can I drive with a P112900 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P112900 active.

How do I fix P112900?

Follow the step-by-step diagnostic on this page, then read the verified fixes contributed by other Heavy Truck owners — the answer marked "Verified Cause" worked for the original poster.

OBDIY

Log in Sign up

OBD-II

P112900

Transmission oil temperature moderately high

What it means

No subtype information

Sign in to view symptoms, probable causes, diagnostic steps, severity, and related codes

Log in Sign up free