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Home >> Chrysler >> 2021 >> Voyager LXi, Gas >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> (Radio Frequency Module (RF Hub) - Electrical Diagnostics) >> DTC Troubleshooting >> C1503-07-Tire Pressure Sensor 3 - Mechanical Failure >> Diagnostic Test

Diagnostic Test

  1. TIRE PRESSURE MONITOR SYSTEM CHECK 
    NOTE:

    The TPM Sensor Mechanical Failure fault is not dependent upon other faults being addressed first. Because of this diagnostic strategy, the RFHM Module should not be considered for replacement while diagnosing this TPM Sensor Mechanical Failure fault.

    1. Confirm the following before proceeding with this diagnostic test.
      • Perform any Technical Service Bulletins that may apply to this system.
      • Verify the tire pressures are correct.
      • Verify the TPM - RKE Analyzer Tool (special tool #2046300080, Kit, TPM/RKE ANALYZER)is at 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 out dated 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 MECHANICAL FAILURE DTC IN THE RFHM 
    1. Turn the ignition on.
    2. With the scan Tool, read and record Radio Frequency Hub Module (RFHM) DTCs and the sensor IDs associated with the 'mechanical failure' DTC(s) that are active or have a multiple occurrence.
      NOTE:

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

      Is this DTC active or if the DTC is stored, are there multiple occurrences?

      Yes 

      • Go To  3

      No 

  3. READ ALL TPM SENSORS WITH THE TPM-RKE ANALYZER TOOL 
    1. 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.

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

      The purpose of the TPM-RKE Analyzer Tool is to identify the location of the sensor by the ID associated to the DTC.

      NOTE:

      There is a remote possibility the TPM-RKE Analyzer Tool can read a TPM Sensor from a different vehicle, instead of the vehicle being tested. If a sensor ID read by the TPM-RKE Analyzer Tool does not match any of the IDs in the RFHM recorded earlier, relocate vehicles to a proximity that is greater than 10 feet and repeat reading.

      Did all or at least one TPM sensor respond and match an ID stored in the Radio Frequency Hub Module (RFHM)?

      Yes 

      • Go To  5

      No 

      • Go To  4
  4. TPM-RKE ANALYZER TOOL OPERATION VERIFICATION 
    1. With the TPM-RKE Analyzer Tool attempt to read a new TPM Sensor (one not installed) from stock or a known good vehicle of the same year and model.
      NOTE:

      The ID read by the Tool must agree with the ID written on the side of the sensor housing.

      Does the TPM-RKE Analyzer Tool read the new TPM Sensor from stock or the known good vehicle with the same year and model?

      Yes 

      • Go To  5

      No 

      • There is an issue with the TPM-RKE tool. Contact the TPM-RKE Analyzer Tool help desk for assistance with any repair or updating concerns to the TPM-RKE Analyzer Tool.
  5. CHECK TPM SENSOR IDENTIFICATION TO THE CORRESPONDING DTC 
    1. Replace the TPM Sensor(s) with the ID that corresponds to the DTC, noted previously in accordance with Service Information. Refer to SENSOR, TIRE PRESSURE MONITORING (TPM), REMOVAL AND INSTALLATION .
    2. Perform the TPM SENSOR VERIFICATION TEST. Refer to TPM SENSOR VERIFICATION TEST  .

      Was the TPM SENSOR VERIFICATION TEST successful and did values for the pressures display correctly?

      Yes 

      • Clear DTCs
      • Test Complete.

      No 

      • Confirm the correct TPM Sensor ID(s) were written into the RFHM. If not repeat the programming procedure.
      • Perform the TPM SENSOR VERIFICATION TEST. Refer to TPM SENSOR VERIFICATION TEST  .
      • Diagnose according to the appropriate DTC service procedure.