DTC U0100: Lost Communication with ECM / PCM "A": Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the stored DTCs.
4. Drive the vehicle at more than 5 km/h (3.1 mph) for at least 60 seconds.
5. Stop the vehicle.
6. Check for DTCs.
   RESULT
   
   

   Result	Proceed to
   DTC output	A
   DTC not output	B

B → USE SIMULATION METHOD TO CHECK 

A → GO TO CAN COMMUNICATION SYSTEM