DTC Description

CAN COMMUNICATION 

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern vehicle is equipped with many electronic control units, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads the required data only. CAN communication signal chart. Refer to CAN Communication Signal Chart .

DTC DETECTION LOGIC 

If "U1000-01" is detected, first diagnose the CAN communication system.

POSSIBLE CAUSE 

• CAN communication system

FAIL-SAFE 

The following systems are canceled.

• Vehicle-to-vehicle distance control mode
• Conventional (fixed speed) cruise control mode
• FEB
• PFCW
• BSW
• BSI
• LDW
• LDP
• RAB
• ProPILOT Assist
• RCTA

NOTE: With the detection of "U1000-01" some systems do not perform the fail-safe operation. A system controlling based on a signal received from the control unit performs fail-safe operation when the communication with the ADAS control unit becomes inoperable.

CONFIRMATION PROCEDURE 

1. PERFORM DTC CONFIRMATION PROCEDURE 
   1. Start the engine.
   2. Turn the MAIN switch of ICC/ProPILOT Assist system ON.
   3. Perform "All DTC Reading" with CONSULT.
   4. Check if the "U1000-01" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS".

   Is "U1000-01" detected as the current malfunction?

   >>

   Refer to Diagnosis Procedure .

   >>

   To check malfunction symptom before repair: Refer to Intermittent Incident .

   >>

   Confirmation after repair: INSPECTION END