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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (2.9L Pcm 1 - DTCS P0118-00 To P0350-00) >> Diagnosis And Testing >> P026A-00-Charge Air Cooler Efficiency Below Threshold >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR AN ACTIVE DTC 
    1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
    2. For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
    3. With the scan tool, erase all DTCs.
    4. Turn the ignition off for a minimum of 10.0 seconds.
    5. Turn the ignition on.
    6. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
    7. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      • Go To  3

      No 

  2. CHECK FOR OTHER DTCS 
    1. Refer to the recorded DTCs.

      Is the U1008-LIN Bus DTC active or pending?

      Yes 

      • Perform the applicable diagnostic procedure(s). Refer to DTC INDEX .

      No 

      • Go To  3
  3. CHECK THE COOLING SYSTEM 
    1. Turn the ignition off.
    2. Check the Low Temperature Cooling System for:
      • Coolant leaks
      • Low Coolant level
      • Improperly bled or air in the system
      • Improper coolant concentration

      Were there any problems found?

      Yes 

      • Repair the Low Temperature Cooling System as necessary in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Replace the CAC Coolant Pump in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .