Diagnosis System [09/2014 - 11/2017]

1. Blind spot monitor data and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and to perform repairs.

1. Check the DLC3.

   Refer to GENERAL INFORMATION [09/2014 - ]

1. The blind spot monitor system displays an error message on the multi-information display to inform the driver that the system is unavailable either temporarily or due to a malfunction.
   • When the system is unavailable temporarily:

     Multi-information display displays "BSM not available".

   • When the system is unavailable due to a malfunction:

     Multi-information display displays "Check BSM System".

2. If the RCTA function is not operating correctly, the blind spot monitor system displays the RCTA icon on the multi-display assembly to inform the driver of the malfunction

   Malfunctioning Item	Detection Condition	Malfunction Indication	Suspected Area
   System Malfunction Indication	Blind spot monitor sensor LH is malfunctioning Blind spot monitor sensor RH is malfunctioning	◦	Check for DTCs Refer to DTC CHECK / CLEAR [09/2014 - ]
   Communication Malfunction Indication	CAN communication stop between blind spot monitor sensor LH and rear television camera assembly	◦	Go to CAN communication system Refer to DIAGNOSIS SYSTEM [09/2014 - 10/2015] , or refer to DIAGNOSIS SYSTEM [10/2015 - 08/2016] , or refer to DIAGNOSIS SYSTEM [08/2016 - 11/2017]

   1. Malfunction Indication

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      *a	System Malfunction Indication	*b	Communication Malfunction Indication
      *c	Multi-display Assembly	*d	RCTA Icon

HINT: 

The abnormality history for a blind spot monitor sensor can be displayed or cleared.

1. Check abnormality history
   1. Connect the Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Turn the Techstream on.
   4. Turn the blind spot monitor main switch (warning canceling switch assembly) on.
   5. Enter the following menus: Body Electrical / Blind Spot Monitor Master or Blind Spot Monitor Slave / Utility / BSM Master Abnormal History or BSM Slave Abnormal History.

      Body Electrical > Blind Spot Monitor Master > Utility 

      Tester Display
      BSM Master Abnormal History

      Body Electrical > Blind Spot Monitor Slave > Utility 

      Tester Display
      BSM Slave Abnormal History

   6. Check the results displayed for the abnormality history check.

      HINT: 

      • If "Yes" is displayed, check the suspected area column for each item.
      • Abnormality history is stored only for the blind spot monitor sensor for which an abnormality has been detected.
      • If "No" is displayed, refer to Problem Symptoms Table.

        Refer to PROBLEM SYMPTOMS TABLE [09/2014 - 10/2015] , or refer to PROBLEM SYMPTOMS TABLE [10/2015 - 11/2017] 

      ABNORMALITY HISTORY TABLE
      
      

      Tester Display	Item Explanation	Suspected Area
      History of Module Blockage	History of blind spot monitor sensor detection problems due to snow, rain, etc. on the bumper	Check if a bumper that is not compatible with the blind spot monitor sensors (such as a non-genuine part) is installed Check if any foreign matter is attached to the bumper Check if any foreign matter is present between the bumper and sensors
      History of Low Voltage	History of low supply battery voltage from battery to the blind spot monitor sensor	Power Source Circuit Refer to Power Source Circuit [09/2014 - ]
      History of High Voltage	History of high supply battery voltage from battery to the blind spot monitor sensor
      History of Low Temperature	History of low temperature for the blind spot monitor sensor	Check the outside temperature Check if any foreign matter is attached to the blind spot monitor sensors and their surrounding areas
      History of High Temperature	History of high temperature for the blind spot monitor sensor

2. Clearing abnormality history
   1. Connect the Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Turn the Techstream on.
   4. Turn the blind spot monitor main switch (warning canceling switch assembly) on.
   5. Enter the following menus: Body Electrical / Blind Spot Monitor Master or Blind Spot Monitor Slave / Utility / BSM Master Abnormal History or BSM Slave Abnormal History.

      Body Electrical > Blind Spot Monitor Master > Utility 

      Tester Display
      BSM Master Abnormal History

      Body Electrical > Blind Spot Monitor Slave > Utility 

      Tester Display
      BSM Slave Abnormal History

   6. Clear the abnormality history.