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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P0261-00 To P046C-00 >> DTC Troubleshooting >> P026E-00-Charge Air Cooler Coolant Pump Performance >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, read Powertrain Control Module (PCM) DTCs and Freeze Frame Data and record on the repair order.
    3. Using the recorded Freeze Frame Data and the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    4. With the scan tool, read DTCs and record on the repair order.

      Is the DTC active or pending?

      Yes 

      • Go To  2

      No 

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

      Are there any CAC Coolant Pump Relay Control circuit, LIN Bus, ASD/Main Relay or system voltage DTCs active or pending?

      Yes 

      No 

      • Go To  3
  3. CHECK THE LOW TEMP COOLING SYSTEM FOR PROPER LEVEL AND LEAKS CAUSING AIR IN THE 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 .