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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> 8HP50/850RE - DTCS P1D92-00 To U3002-00 >> DTC Troubleshooting >> P1DA4-00-Incorrect Gear Ratio Clutch B C Or D Defective >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    NOTE:

    Make sure the Transmission fluid is at the proper level before proceeding. Refer to CHECK FLUID LEVEL .

    1. With the scan tool, read Transmission Control Module (TCM) DTCs and record on the repair order.
    2. Record the Event Data and Environmental Data.
    3. With the scan tool, erase DTCs.
    4. Using the recorded Event and 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 TCM DTCs.

      Did the DTC return?

      Yes 

      • Go To  2

      No 

      • Go To  3
  2. CHECK TRANSMISSION FLUID CONDITION 
    1. Check the Transmission fluid condition.

      Is the Transmission fluid burnt?

      Yes 

      No 

  3. CHECK WIRING AND CONNECTORS 
    1. The conditions necessary to set the DTC are not present at this time.
    2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
    3. Wiggle the wires while checking for shorted and open circuits.
    4. Check for any Service Bulletins that may apply.

      Were any problems found?

      Yes 

      No