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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Radio Frequency Module (RF Hub) - DTCS B1045-11 To U1703-86 >> DTC Troubleshooting >> B1053-64 RFHM (Kin Communication) - Signal Plausibility Failure >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan Tool, read and record RF Hub DTCs.

      Is this DTC active?

      Yes 

      • Go To  2

      No 

  2. CHECK THE (D122) SECURITY K LINE COMMUNICATION CIRCUIT BETWEEN THE RF HUB AND KIN 
    1. Disconnect RF Hub C1 connector
    2. Disconnect the KIN harness connector
    3. Check the (D122) Security K Line Communication circuit for the following:
      • Open
      • High Resistance (above 3.0 ohms)
      • Short To Ground

      Were any of the above conditions found?

      Yes 

      • Repair the (D122) Security K Line Communication circuit for damage in accordance with Service Information.

      No 

      • Go To  3
  3. CHECK THE (G201) IGNITION SWITCH POSITION SIGNAL CIRCUIT (IF EQUIPPED) OR THE (K617) RUN/START RELAY CONTROL CIRCUIT BETWEEN THE RF HUB AND KIN 
    1. Check the (G201) Ignition Switch Position Signal (if equipped) or the (K617) Run/Start Relay Control circuit for the following:
      • Open
      • High Resistance (above 3.0 ohms)
      • Short To Ground

      Were any of the above conditions found?

      Yes 

      • Repair the (G201) Ignition Switch Position Signal circuit or the (K617) Run/Start Relay Control circuit for damage in accordance with Service Information.

      No 

      • Replace the KIN in accordance with Service Information.
      • Go To  4
  4. CHECK RELATED HARNESS CONNECTIONS 
    1. Disconnect all RF Hub 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 RF Hub Module 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 RF Hub DTCs.

      Did the DTC return?

      Yes 

      • Replace the Radio Frequency Hub (RF Hub) Module in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
      • If this vehicle is equipped with a Steering Column Lock Module (BUX), it must also be replaced in accordance with the Service Information. When replacing the RF-Hub and the Steering Column Lock Module, the RF-Hub MUST be programmed BEFORE the Steering Column Lock Module (ELV) is programmed.
      • Replace the Steering Column Lock Module (ELV/ESCL) in accordance with the Service Information.
      • Perform the RADIO FREQUENCY HUB VERIFICATION TEST. Refer to RADIO FREQUENCY (RF HUB) VERIFICATION TEST .

      No 

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