Verification of Vehicle Repair

U0100 Lost Communication With ECM/PCM \'A\'

Verification of Vehicle Repair

After a repair, it is essential to verify that the fault has been corrected.
1. Connect GDS and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.
2. Operate the vehicle and monitor the DTC on the GDS.
3. Are any DTCs present?