DTC of CAN communication is indicated on SELF-DIAG RESULTS on CONSULT-III if a CAN communication signal is not transmitted or received between units for 2 seconds or more.
NOTE:
DTCs of CAN communication are follows:
  • U0101
  • U0140
  • U0164
  • U1000
  • U1001

 
 CAN COMMUNICATION SYSTEM ERROR

  • CAN communication line open (CAN-H, CAN-L, or both)
  • CAN communication line short (ground, between CAN communication lines, other harnesses)
  • Error of CAN communication control circuit of the unit connected to CAN communication line
 
 WHEN DTC OF CAN COMMUNICATION IS INDICATED EVEN THOUGH CAN COMMUNICATION SYSTEM IS NORMAL

  • Removal/installation of parts: Error may be detected when removing and installing CAN communication unit and related parts while turning the ignition switch ON. (A DTC except for CAN communication may be detected.)
  • Fuse blown out (removed): CAN communication of the unit may cease.
  • Voltage drop: Error may be detected if voltage drops due to discharged battery when turning the ignition switch ON (Depending on the control unit which carries out CAN communication).
  • Error may be detected if the power supply circuit of the control unit, which carries out CAN communication, malfunctions (Depending on the control unit which carries out CAN communication).
  • Error may be detected if reprogramming is not completed normally.
■ CAUTION ■
CAN communication system is normal if DTC of CAN communication is indicated on SELF-DIAG RESULTS of CONSULT-III under the above conditions. Erase the memory of the self-diagnosis of each unit.