TSB NUMBER:

22-001-22

OVERVIEW:

TPMS Does Not Read Tire Pressure For The Rear Tires. The issue most commonly occurs on vehicle with longer CAs and/or with unfits that have a large amount of steel around the rear wheels. This causes the tire pressure sensor signal strength at the RFH to be too low, and a valid tire pressure value can not be read.

MODELS:

2019 - 2022 (DD) RAM 3500 Cab Chassis

2019 - 2022 (DP) RAM 4500/5500 Cab Chassis

NOTE: This bulletin applies to vehicles within the following markets/countries: North America.

NOTE: This bulletin applies to vehicles equipped with Tire Pressure Information System (Sales Code XBT), Tire Fill Alert (Sales Code LAW) and Selectable Tire Fill Alert (Sales Code LA5).

SYMPTOM/CONDITION:

Vehicle may experience a Malfunction Indicator Lamp (MIL) illumination. The following Diagnostic Trouble Code (DTC) has been set:

     C15CE-31 Tire Pressure Sensor 7 - No Signal.

Vehicle may also experience the following:

     Instrument Panel Cluster (IPC) warning is illuminated for the tire pressure sensors.

REPAIR:

The vehicle must be taken to a Ram dealer. Inform the service advisor of the issue and above listed TSB number. The dealer will add a sales code and reconfigure the vehicles electronics. This will disable the TPMS.