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HOMESERVICE MANUALSJEEP2023GLADIATOR FREEDOM, PART TIME T/CASE CONTROLREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSRADIO FREQUENCY MODULE (RF HUB) - DTCS C1503-31 TO U1517-87DTC TROUBLESHOOTINGC1597-00-TPM SYSTEM DEACTIVATED - WINTER MODEDIAGNOSTIC TEST
2023 Jeep Gladiator Freedom, Part Time T/Case Control

Diagnostic Test

2023 Jeep Gladiator Freedom, Part Time T/Case ControlSECTION Diagnostic Test
  1. READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN 
    1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
    2. For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
    3. With the scan tool, erase all DTCs.
    4. Turn the ignition off for a minimum of 10.0 seconds.
    5. Turn the ignition on.
    6. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
    7. With the scan tool, read DTCs.

    Did the DTC return?

    Yes 

    • Go To  2

    No 

  2. TIRE PRESSURE MONITORING (TPM) WINTER MODE 
    NOTE:

    Repair all other RFHM DTCs before continuing with this test procedure.

    1. Turn the ignition off.
    2. Turn the ignition from off to on.
    3. Check for the following conditions:
      • The warning lamp is off.
      • The tire pressure values in the Instrument Cluster are displayed as dashes.
      • The message center is not  displaying "SERVICE TPM SYSTEM".

      Are all of the above conditions correct?

      Yes 

      • The RFHM is now in deactivation mode (Winter Mode). This DTC will remain active until the correct tire and wheel assemblies are installed back on the vehicle. Once one of the correct tire and wheel assemblies are reinstalled, the other three must also be reinstalled prior to turning the ignition on.

      No 

      • Go To  3
  3. TIRE PRESSURE MONITORING (TPM) SENSORS 
    1. Turn the ignition off.
    2. Verify the correct TPM Sensors are installed in all of the tire and wheel assemblies.
      NOTE:

      Always be certain to select the proper vehicle line and model year when using this tool, as the tool will automatically use the correct protocol to attempt to read the Sensor. If the incorrect vehicle line and/or model year is selected, the Sensor will not respond to the tool.

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.