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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> (Adaptive Front Lighting System Module - Electrical Diagnostics) >> DTC Troubleshooting >> B1072-11-Right Horizontal Motion Motor Malfunction - Circuit Short To Ground >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    1. With the scan tool, read Adaptive Front Lighting System (AFLS) Module DTCs and record on the repair order.
    2. With the scan tool, erase DTCs.
    3. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    4. With the scan tool, read AFLS Module DTCs.

      Did the DTC return?

      Yes 

      • Go to  2

      No 

  2. CHECK THE RIGHT FRONT LAMP ASSEMBLY AND ADAPTIVE FRONT LIGHTING SYSTEM (AFLS) MODULE CONNECTIONS 
    1. Check for loose, damaged or corroded connections at the Right Front Lamp Assembly harness connector and Adaptive Front Lighting System (AFLS) Module harness connector.

      Are there any loose or damaged connections?

      Yes 

      No 

      • Go to  3
  3. CHECK THE (D405) LIN BUS CIRCUIT FOR A SHORT TO GROUND 
    1. Check for a short to ground on the (D405) LIN Bus circuit between the Right Front Lamp Assembly harness connector and the Adaptive Front Lighting System (AFLS) Module harness connector.

      Is there a short to ground on the (D405) LIN Bus circuit?

      Yes 

      • Repair the short to ground on the (D405) LIN Bus circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go to  4
  4. CHECK THE RIGHT FRONT LAMP ASSEMBLY OPERATION 
    1. Check the Right Front Lamp Assembly operation.

      Is the Right Front Lamp Assembly operating correctly?

      Yes 

      No 

      • Go to  5
  5. CHECK RELATED HARNESS CONNECTIONS 
    1. Disconnect all AFLS Module 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. Connect all AFLS harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    7. Connect 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 Environmental Data, 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 AFLS Module DTCs.

      Did the DTC return?

      Yes 

      No