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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control Module (BCM) - DTCS B1072-96 To B12AE-11 >> DTC Troubleshooting >> B126A-23-Rear Left Window Lifter Switch Down Driver Side-Signal Stuck Low >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    NOTE:

    Diagnose any LIN Bus DTCs before performing this diagnostic test.

    1. With the scan tool, read Body Control Module (BCM) DTCs and record on the repair order.
    2. Record the Environmental Data.
    3. With the scan tool, erase DTCs.
    4. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    5. With the scan tool, read BCM DTCs.

      Did the DTC return?

      Yes 

      • Go To  2

      No 

  2. CHECK FOR ADDITIONAL BCM DTCS 
    1. With the scan tool, read BCM DTCs.

      Is DTC: B126A-11 - REAR LEFT WINDOW LIFTER SWITCH DOWN DRIVER SIDE - CIRCUIT SHORT TO GROUND also Active?

      Yes 

      No