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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 2.0L - DTCS P0261-00 To P046C-00 >> DTC Troubleshooting >> P046C-00-Exhaust Gas RECIRCULATION Sensor "A" Circuit Range/Performance >> Diagnostic Test

Diagnostic Test

  1. DTC IS ACTIVE 
    NOTE:

    If P045A-00, P0045B-00, P045C-00, or P045D-00 are present, perform the Diagnostics for those DTCs before continuing with this one.

    1. Ignition on, engine not running.
    2. With the scan tool, erase DTCs in the Powertrain Control Module (PCM).
    3. Test drive the vehicle while monitoring the scan tool.
    4. With the scan tool, select View DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  2

      No 

  2. EGR VALVE ASSEMBLY 
    1. Turn the ignition off.
    2. Reconnect the PCM C2 harness connector.
    3. Replace the EGR Valve Assembly in accordance with the service information.
    4. Ignition on, engine not running.
    5. With the scan tool, erase DTCs in the Powertrain Control Module (PCM).
    6. Test drive the vehicle while monitoring the scan tool.
    7. With the scan tool, select View DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  3

      No 

  3. POWERTRAIN CONTROL MODULE (PCM) 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the EGR Valve Assembly and the Powertrain Control Module (PCM).
    2. Look for any chafed, pierced, pinched, or partially broken wires.
    3. Look for broken, bent, pushed out or corroded terminals.
    4. Perform any Technical Service Bulletins that may apply.

      Were any problems found?

      Yes 

      No 

      • Replace the Powertrain Control Module (PCM) in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .