Diagnostic Test

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK TIRES FOR WRONG SIZE, UNDER INFLATION, AND MINI-SPARE INSTALLED

NOTE:

If a wheel speed tone ring was recently installed, it could be the wrong size and is causing this DTC to set.

This DTC will set if a mini-spare is installed or if a standard tire is the wrong size, under inflated or severely worn.
Do all four tires meet Original Equipment Manufacture (OEM) specification?

Yes
- With the scan tool, erase the DTCs.
- Perform the DTCM VERIFICATION TEST. Refer to DTCM VERIFICATION TEST .
No
- Repair or replace the tire as necessary in accordance with the Service Information.
- Perform the DTCM VERIFICATION TEST. Refer to DTCM VERIFICATION TEST .