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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (2.9L Pcm 1 - DTCS P2100-00 To P3405-00) >> DTC Troubleshooting >> P28C0-00-Ion Sense Module Supply Voltage Circuit >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. CHECK POWER SUPPLY ON IGNITION COIL CONTROL MODULE 
    1. Check the correct power supply of the Ignition Coil Control Module.

      Is the power supply correct?

      Yes 

      • Go to 2.

      No 

      • Restore correct power supply
  2. CHECK IGNITION COIL CONTROL MODULE WIRING 
    1. Check the wiring for an open circuit or high resistance of the power supply terminals of the Ignition Coil Control Module.

      Is there a high resistance or open condition in the wiring?

      Yes 

      • Repair the open circuit or high resistance in the wiring.

      No 

      • Go to 3.
  3. CHECK IGNITION COIL CONTROL MODULE WIRING 
    1. Check wiring for a short circuit of the power supply terminals of the Ignition Coil Control Module.

      Is there a short circuit in the wiring?

      Yes 

      • Repair the short circuit in the wiring.

      No 

      • Go to 4.
  4. CHECK OPERATION OF IGNITION COIL CONTROL MODULE 
    1. Check that the Ignition Coil Control Module is working properly.

      Ignition coil driving control unit is not working properly

      Yes 

      • End of diagnosis.

      No 

      • Replace the Ignition Coil Control Module.