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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Seats >> (Comfort Seats And Wheel Module (CSWM) - Electrical Diagnostics) >> DTC Troubleshooting >> B1102-17-Motors Power Supply-Circuit Voltage Above Threshold >> Diagnostic Test

Diagnostic Test

  1. CHECK THE PCM FOR CHARGING SYSTEM OR VOLTAGE DTCS 
    1. Turn the ignition on.
    2. With the scan tool, read Powertrain Control Module (PCM) DTCs.

      Are there any Charging System or Voltage DTCs set in the PCM?

      Yes 

      • Repair the PCM DTC(s). Refer to DTC INDEX .

      No 

      • Go To  2
  2. CHECK FOR AN ACTIVE DTC 
    1. With the scan tool, record and erase DTCs.
    2. Turn the ignition off.
    3. Start the engine and let it run for one minute.
    4. With the scan tool, read DTCs.

      Is the DTC active?

      Yes 

      • Go To  3

      No 

  3. CHECK RELATED WIRING AND HARNESS CONNECTIONS 
    1. Turn the ignition off.
    2. Check the related component and module power supply and ground circuits.
    3. Disconnect the CSWM harness connector(s).
    4. Disconnect all related in-line harness connections (if equipped).
    5. Disconnect the related component harness connectors.
    6. 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.

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

      Did the DTC return?

      Yes 

      No