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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> (Radio Frequency Module (RF Hub) - Electrical Diagnostics) >> DTC Troubleshooting >> B1041-17 - RFHM Electric Failure 1 - Circuit Voltage Above Threshold >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR POWERTRAIN CONTROL MODULE (PCM) DTCS 
    1. With the scan tool, read PCM DTCs.

      Are there any battery or charging system DTCs?

      Yes 

      • Refer to DTC INDEX and perform the appropriate diagnostic procedure.

      No 

      • Go To  2
  2. CHECK FOR AN ACTIVE DTC 
    1. With the scan tool, record and erase the DTCs.
    2. Start the engine.
    3. Allow the engine to idle for two minutes.
    4. With the scan tool, read the RF Hub DTCs.

      Is the DTC active?

      Yes 

      • Go To  3

      No 

  3. 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 

      No