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Home >> Dodge and Ram >> 2024 >> ProMaster 2500 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Brake System Control Module (BSCM) - DTCS C10ED-00 To C2111-00) >> DTC Troubleshooting >> C1504-00 Tire Pressure Sensor 4 >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2024 RAM ProMaster EV. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    NOTE:

    This DTC must be active for the results of this test to be valid. 

    1. Perform any Service Bulletins that may apply.
    2. Turn the ignition on.
    3. For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
    4. With the scan tool, read DTCs and record on the repair order.
    5. With the scan tool, read and record Environmental Data to help identify the conditions in which the DTC was set.
    6. With the scan tool, erase all DTCs.
    7. Turn the ignition off for a minimum of 10.0 seconds.
    8. Start the vehicle
    9. Press the brake pedal firmly and release.
    10. With the scan tool, read BSCM DTCs.

      Is the DTC active?

      Yes 

      • Go To Next Step.

      No 

      • The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension and repair as necessary.
      • Perform the BSCM-INTERMITTENT CONDITION TEST. Refer to BSCM INTERMITTENT CONDITION .
  2. Check for RF Hub Codes 
    1. With the use of the scan tool read RF Hub DTCs.

      Are there any DTCs present on the RF Hub Module?

      Yes 

      • Diagnose the RF Hub DTCs before continuing this test.

      No 

      • Go To Next Step
  3. TPM-RKE ANALYZER 2046300080 

    Is there a TPM-RKE Analyzer (special tool #2046300080, Kit, TPM/RKE ANALYZER) available?

    Yes 

    • Go To Next Step.

    No 

    • Go To  5
  4. WITH TPM-RKE TOOL CHECK TIRE PRESSURE MONITORING (TPM) SENSOR ID(S) 
    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. 

    NOTE:

    If you receive no response from any of the tire pressure sensors, check to make sure that the TPM-RKE Analyzer is set correctly, and repeat the process on each of the non-responsive wheel(s) 

    1. Use a TPM-RKE Analyzer at the most current version available (special tool #2046300080, Kit, TPM/RKE ANALYZER) to scan each TPM Sensor for an ID, store in the proper location in the TPM-RKE Analyzer.

    2. Use a TPM-RKE Analyzer to upload the correct IDs and proper locations in the scan tool.
    3. With the scan tool, select the RF Hub Module under "Miscellaneous Functions", follow the procedure for uploading TPM Sensor IDs.
    4. With the scan tool, erase RF Hub Module DTCs.
    5. Test drive the vehicle at a speed greater than 32 km/h (20 mph) for 20 minutes in order to receive TPM data and allow for the system to update.
    6. With the scan tool, check to see if the TPM sensor IDs match what is programmed into the RF Hub Module.

      Do the TPM IDs match?

      Yes 

      No 

  5. WITHOUT TPM-RKE TOOL CHECK TIRE PRESSURE MONITORING (TPM) SENSOR ID(S) 
    1. Press the ignition on.
    2. Starting with the left front wheel, deflate the tire to 20 PSI, wait two minutes, and check the scan tool for changes to any compensated tire pressure values.
    3. Repeat the above step on each wheel of the vehicle.
    4. With the scan tool, erase RF Hub Module DTCs.
    5. Test drive the vehicle at a speed greater than 32 km/h (20 mph) for 20 minutes in order to receive TPM data and allow for the system to update.
    6. With the scan tool, check to see if the TPM sensor IDs are programmed into the RF Hub Module.

      Are the TPM Sensor IDs in the RF Hub Module?

      Yes 

      No 

  6. CHECK RELATED HARNESS CONNECTIONS ON THE RADIO FREQUENCY HUB MODULE (RFHM) 
    1. Disconnect all RFHM harness connectors.
    2. Disconnect all related in-line harness connections (if equipped).
    3. Disconnect the related component harness connectors.
    4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
      • Proper connector installation.
      • Damaged connector locks.
      • Corrosion.
      • Other signs of water intrusion.
      • Weather seal damage (if equipped).
      • Bent terminals.
      • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
      • Terminals that have been pushed back into the connector cavity.
      • Perform a terminal drag test on each connector terminal to verify proper terminal tension.

      Repair any conditions that are found.

    5. Reconnect all RFHM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. With the scan tool, erase DTCs.
    9. Using the recorded Vehicle Scan Report, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    10. With the scan tool, read RFHM DTCs.

      Did the DTC return?

      Yes 

      No 

  7. CHECK RELATED HARNESS CONNECTIONS ON THE BRAKE SYSTEM CONTROL MODULE (BSCM) 
    1. Turn the ignition off.
    2. Disconnect the BSCM harness connector.
    3. Disconnect all related in-line harness connections (if equipped).
    4. Disconnect the related component harness connectors.
    5. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
      • Proper connector installation.
      • Damaged connector locks.
      • Corrosion.
      • Other signs of water intrusion.
      • Weather seal damage (if equipped).
      • Bent terminals.
      • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
      • Terminals that have been pushed back into the connector cavity.
      • Perform a terminal drag test on each connector terminal to verify proper terminal tension.

      Repair any conditions that are found.

    6. Connect the BSCM harness connector. Be certain that the harness connector is fully seated and the connector lock is fully engaged.
    7. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. Connect the related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    9. With the scan tool, erase DTCs.
      WARNING:

      To avoid possible serious or fatal injury, check brake capability is available before road testing.

    10. Using the recorded Event and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    11. With the scan tool, read BSCM DTCs.

      Did the DTC return?

      Yes 

      No 

      • The wiring or poor connection problem has been repaired.
      • Perform the BSCM VERIFICATION TEST. Refer to BSCM VERIFICATION TEST .