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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (2.9L Pcm 1 - DTCS P3406-00 To U143B-00) >> DTC Troubleshooting >> U0C30-00 - Passenger Door Switch - Short Circuit To Ground Error >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. CHECK CONNECTIONS ON PASSENGER DOOR OPEN SWITCH AND BODY COMPUTER 
    1. Check for loose, damaged or corroded connections on the passenger door open switch or the Body Computer.

      Are there any loose or damaged connections?

      Yes 

      • Repair the wiring connections as necessary.

      No 

      • Go to  2.
  2. CHECK WIRING BETWEEN PASSENGER DOOR OPEN SWITCH AND BODY COMPUTER 
    1. Check for a short circuit to ground in the wiring between the passenger door open switch and the Body Computer.

      Is there a short circuit to ground in the wiring?

      Yes 

      • Repair the wiring and connections as necessary insulation to ground.

      No 

      • Go to  3.
  3. CHECK OPERATION OF PASSENGER DOOR OPEN SWITCH 
    1. Check that the passenger door open switch is working properly.

      Passenger door open switch is not working properly

      Yes 

      • End of diagnosis.

      No 

      • Replace the door lock motor.