How To Proceed With Troubleshooting

NOTE:

DTCs for the CAN communication system are as follows: U0073, U0100, U0101, U0122, U0123, U0124, U0126, U0132, U0145, U1101, U0104, U0105, U0114, U0121, U0130, U0131, U0146.
Refer to troubleshooting of each system DTCs regarding the CAN communication system are not output.

CHECK AND CLEAR DTCs
NEXT
CHECK FOR INSTALLED SYSTEMS (ECUs & SENSORS) THAT ADOPT CAN COMMUNICATION)
1. Check which of the following is adopted: LEXUS parking assist (rear view monitor or buck guide monitor), LEXUS parking assist (clearance sonar), dynamic laser cruise control and engine model.
  NEXT
CHECK CAN BUS LINE
1. Check CAN bus line (see CAN BUS LINE )
  NEXT
CHECK INTELLIGENT TESTER VIA CAN VIM
1. Select "BUS CHECK" (see 1 )
  Standard: All ECUs and sensors connected to the CAN communication system are displayed.
  NOTE:
  - The systems (ECUs, sensors) that adopt CAN communication vary depending on the vehicle and option settings. Check which systems (ECUs, sensor) are installed on the vehicle (see DIAGNOSIS SYSTEM )
  - Non-installed ECUs or sensors are not displayed. Do not mistake them for being in the communication stop mode.
  - If 2 or more ECUs or sensors are not displayed on the hand-held tester via the CAN VIM, perform troubleshooting for communication stop mode for each undisplayed ECU or sensor. (Open in on side of CAN sub bus line.)
  NO : COMMUNICATION STOP MOOD TABLE
  
  YES : GO TO NEXT STEP
DTC COMBINATION TABLE
1. Confirm trouble according to the combination of output DTCs regarding the CAN communication system.
  HINT:
  
  Previous CAN communication system DTCs may be the cause if CAN communication system DTCs are output and all ECUs and sensors connected to the CAN communication system are displayed on the intelligent tester's "BUS CHECK" screen vie CAN VIM.
  
  NEXT
CIRCUIT INSPECTION
NEXT
IDENTIFICATION OF PROBLEM
NEXT
REPAIR OR REPLACE
NEXT
CONFIRMATION TEST
NEXT

END