2014 Jeep Wrangler JK Factory Service Manual 22 - Tires and Wheels

MODULE, Tire Pressure Monitoring (TPM)

DESCRIPTION

The TPM Module (1) is a stand-alone receiver that is used to perform all TPM functionality in a Premium TPM System. The TPM is located on the top of the rear crossmember frame and is mounted with a bracket (3). The TPM uses information transmitted from each of the sensors as well as the difference in the strength of the signal received to determine the location of each of the sensors.

OPERATION

The TPM receives information from each of the sensors in the form of RF signals. The information contained in each of the transmissions provides all the information necessary for the TPM to determine the pressure in each tire as well as the position of the sensor. This auto-locating process only happens in the first 20 minutes of any drive cycle while traveling at speeds above 20 mph (32 km/h) (The auto-locating process will start again only if the vehicle has been shut off for approximately 20 minutes or longer). The TPM then transmits the required information directly to the CCN in order to update the lamp, chime and display as required.

REMOVAL



NOTE:

The TPM is located on the rear crossmember and is mounted to the frame with a bracket.


  1. Disconnect and isolate the battery negative cable.

    2.  
  2. Raise and support the vehicle (Refer to 04 - Vehicle Quick Reference/Hoisting - Standard Procedure) .

    3.  
  3. Remove mounting bolt (1), then remove the Tire Pressure Module and bracket (2) from the crossmember.

    4.  
  4. Disconnect the wiring harness connector (1) at the Tire Pressure Module (2) and remove from vehicle.

    5.  

INSTALLATION

  1. Connect wiring harness connector (1) at the Tire Pressure Module (2).

    2.  
  2. Position the tire pressure monitor module and bracket (2) on the crossmember, install mounting bolt (1) and torque to 9 N·m (80 in. lbs.).

    3.  
  3. Remove the support and lower the vehicle.

    4.  
  4. Perform one of the following to make the system learn the new sensor ID.

    1. Use the TPM-RKE Analyzer 9936, with the Scan Tool to program the TPM Module with the tire pressure sensor ID. This is part of the TPM Diagnostic Verification Test. (Refer to 28 - DTC-Based Diagnostics/MODULE, Tire Pressure (TPM) /Standard Procedure).

      2.  
    2. Once the vehicle has remained stationary for more than 20 minutes, drive vehicle for a minimum of 20 minutes while maintaining a continuous speed above 20 mph (32 km/h). During this time, the system will learn the new sensor ID. This is part of the TPM Verification Test. (Refer to 28 - DTC-Based Diagnostics/MODULE, Tire Pressure (TPM) - Standard Procedure).

      3.  

    5.