DTC U0075: Control Module Communication Bus "PU-Can" Off

DTC detecting condition: 

Detected when malfunction occurs in the power unit CAN line. (Bus off)

Trouble symptom: 

• Pre-collision braking determined by the Wide angle mono camera is not activated.
• Warning light ON.

1. BASIC INSPECTION  .

   Before performing the diagnosis, perform basic inspection. Ref. to WIDE ANGLE MONO CAMERA (DIAGNOSTICS)>GENERAL DESCRIPTION>INSPECTION .

   NOTE:

   • Check the battery and its installation condition.
   • Check the related fuse.
   • Visually check that the related connectors are properly connected.

   
   Also, check the related ground terminal for looseness and corrosion.

   Is the check result OK?

   Yes:  Go to  2.

   No:  Repair the defective part.

2. LAN SYSTEM DIAGNOSIS  .

   Perform the diagnosis for LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .

   Is the check result OK?

   Yes:  Go to  3.

   No:  Repair or replace the faulty portion according to the inspection result.

3. CHECK REPAIR  .
   1. Perform the inspection mode corresponding to DTC. Ref. to WIDE ANGLE MONO CAMERA (DIAGNOSTICS)>INSPECTION MODE>PROCEDURE .
   2. Confirm that DTC or cancel code is not stored and the malfunction is eliminated.

   Is the check result OK?

   Yes:  Finish the diagnosis.

   No:  Perform the diagnosis according to the basic diagnostic procedure. Ref. to WIDE ANGLE MONO CAMERA (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .