Dtc U0073 Control Module Communication Bus Off

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Park Assist Monitoring. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

CHECK FOR DTC

DTC U0073 Control Module Communication Bus OFF

DTC U0100 Lost Communication with ECM

DTC U0114 Lost Communication with 4WD Control ECU

DTC U0126 Lost Communication with Steering Angle Sensor Module

DTC U0130 Lost Communication with VGRS

DTC U0140 Lost Communication with Main Body ECU


DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the parking assist ECU.
HINT:
If CAN communication system DTCs are stored, they may also be stored in other systems.

DTC Code
DTC Detection Condition
Trouble Area
U0073
Control module communication bus off
CAN communication system
U0100
Lost communication with ECM
U0114
Lost Communication with 4WD Control ECU
U0126
Lost communication with steering angle sensor
U0130
Lost communication with VGRS
U0140
Lost communication with main body ECU

INSPECTION PROCEDURE

1.CHECK FOR DTC

  1. Clear the DTCs.

    1. for LHD: Click here
    2. for RHD: Click here

  1. Check for DTCs.

    1. for LHD: Click here
    2. for RHD: Click here
    Result
    Result
    		Proceed to
    No DTC is output
    		A
    DTC is output (for LHD)
    		B
    DTC is output (for RHD)
    		C
HINT:
  1. If CAN communication system DTCs are stored, they may also be stored in other systems.
  2. If the CAN communication system has been inspected and repaired in other systems, the DTCs will not be output when rechecking for DTCs.
  3. If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.
    1. for LHD: Click here
    2. for RHD: Click here


B
Go to CAN COMMUNICATION SYSTEM (Click here)

C
Go to CAN COMMUNICATION SYSTEM (Click here)
A

USE SIMULATION METHOD TO CHECK (Click here)