LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2018 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System (Diagnostics - Circuit Tests) (1 Of 2) >> Can Communication System >> Open in One Side of Bus 1 Branch Line [12/2017 - 08/2019] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - 08/2019]

  • After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.
  • DTC check procedure: Drive the vehicle at a speed of 36 km/h (22 mph) or more for 52 seconds or more. And drive the vehicle with the dynamic radar cruise control system operated for 1 second or more.
  • After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed.

    Refer to DIAGNOSIS SYSTEM [12/2017 - 08/2018] , or refer to DIAGNOSIS SYSTEM [08/2018 - 08/2019]

HINT: 

Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.

scientia non olet · About LEMON Manuals