DTC U0073/42: Control Module Communication Bus OFF; DTC U0100/65: Lost Communication with ECM / PCM: Procedure

1. Clear the DTC.
2. Start the engine.
3. Drive the vehicle at a speed of 15 km/h (9 mph) and turn the steering wheel to the right and left.
4. Check that no CAN communication system DTC is output.
5. If ABS and VSC DTCs are output, record them.
   RESULT
   
   

   Result	Proceed to
   DTC is output for CAN communication system	A. Refer to PROBLEM SYMPTOMS TABLE
   DTC is output (ABS and VSC DTCs are output)	B. Refer to DIAGNOSTIC TROUBLE CODE CHART
   DTC is not output	C

C → END 

B → REPAIR CIRCUITS INDICATED BY OUTPUT DTCS 

A → GO TO CAN COMMUNICATION SYSTEM