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HOMESERVICE MANUALSJEEP2023GLADIATOR FREEDOM, FULL TIME T/CASE CONTROLREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSRADIO FREQUENCY MODULE (RF HUB) - DTCS B1A74-13 TO C1503-16DTC TROUBLESHOOTINGC1502-31-TIRE PRESSURE SENSOR 2-NO SIGNALDIAGNOSTIC TEST
2023 Jeep Gladiator Freedom, Full Time T/Case Control

Diagnostic Test

2023 Jeep Gladiator Freedom, Full Time T/Case ControlSECTION Diagnostic Test
  1. TIRE PRESSURE MONITOR SYSTEM CHECK 
    NOTE:

    The purpose of this test is to determine if there is a TPM sensor, EMC, Radio Frequency Hub Module (RFHM), or an external antenna issue. Once the issue has been identified, there is a drive verification test which utilizes the TPM display screen in the instrument panel for verification.

    1. Confirm the following before proceeding with this diagnostic test.
      • Perform any Technical Service Bulletins that may apply to this system.
      • Turn off, disconnect or disable (without damaging) any added electronic devices (not part of the original equipment) as they can interfere with RF TPM reception in the RFHM.
      • Diagnose and repair any DTCs related to ABS speed signal, TPM mechanical failure, or non TPM related Radio Frequency Hub Module (RFHM) DTCs (i.e. Remote Start Antenna open or short) before continuing with this procedure and then perform the TPM SENSOR VERIFICATION TEST. Refer to RADIO FREQUENCY (RF HUB) VERIFICATION TEST .
      • Verify the tire pressures are correct.
      • Verify the TPM - RKE Analyzer Tool (special tool #2046300080, Kit, TPM/RKE ANALYZER) is the most recent version available before proceeding. Do not assume that the Tool is at the most current version available. Use of a TPM-RKE Analyzer Tool with an outdated version will lead to incorrect diagnosis and part(s) replacement.
      • Contact the TPM-RKE Analyzer Tool help desk for assistance with any repair or up dating concerns to the TPM-RKE Analyzer Tool.

      Were the TPM system checks and TPM-RKE Analyzer tool version confirmed?

      Yes 

      • Go To  2

      No 

      • Complete all the TPM system checks listed and verify the TPM-RKE Analyzer tool version.
  2. CHECK FOR AN ACTIVE DTC 
    1. Press the ignition on.
    2. With the scan Tool, read and record all 4 Sensor IDs from the RFHM memory, noting which ones have an active or stored multiple occurrence DTC.
      NOTE:

      Do not record or reference the exact wheel positions, as they may be incorrect in the RFHM.

    3. With the scan tool, read the RFHM DTCs.

      Is the DTC active?

      Yes 

      • Go To  3

      No 

  3. VISUALLY INSPECT THEN READ ALL TPM SENSORS WITH THE TPM-RKE ANALYZER TOOL 
    NOTE:

    This 'no signal' fault will set if the incorrect TPM Sensor or no TPM Sensor is installed on the vehicle. There should be no metal valve stems or valve stem caps on the rims.

    1. Perform a visual inspection on each tire to verify that all road wheels are equipped with the correct TPM Sensors.
    2. Install the correct Tire Pressure Monitoring (TPM) Sensor(s) as needed from the visual inspection, in accordance with the Service Information, but do not perform the TPM Verification Test at this time. Refer to REMOVAL AND INSTALLATION .
    3. With the TPM-RKE Analyzer Tool (special tool #2046300080, Kit, TPM/RKE ANALYZER) at the most recent version, select the specific vehicle line and model year.
      NOTE:

      If the incorrect vehicle line or model year are selected the TPM sensor may not respond to the TPM-RKE Analyzer Tool.

    4. With the TPM-RKE Analyzer Tool read all of the TPM Sensors on the vehicle and record their IDs and positions.
      NOTE:

      The purpose of the TPM-RKE Analyzer Tool is to determine a non responsive or missing sensor, and to identify the location of the sensor by the ID associated to the DTC.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.