Diagnosis System [11/2018 - ]

Refer to GENERAL INFORMATION [11/2018 - ]

1. Turn the ignition switch to ON.
2. The passenger airbag ON/OFF indicator comes on for approximately 4 seconds, then goes off for approximately 2 seconds.
3. Approximately 6 seconds after the ignition switch is turned to ON, the passenger airbag ON/OFF indicator will indicate ON/OFF depending on the following conditions.
   INDICATOR OPERATION
   
   

   Front Passenger Seat Condition	Passenger Airbag ON/OFF Indicator		SRS Warning Light
   	ON Indicator	OFF Indicator
   Vacant	Off	On	Off
   Child is seated
   Adult*1 is seated
   Child restraint system is installed
   Child*2 is seated	On	Off	Off
   Adult is seated
   Occupant classification system failure	Off	On	On

   1. *1: The system judges a person of average adult weight or more as an adult. If a smaller adult sits in the front passenger seat, the system may not recognize them as an adult depending on their physique and posture.
   2. *2: The system may not recognize a child or a child in a child restraint system as a child depending on factors such as the positioning of the child restraint system or the child's physique or posture.

   HINT: 

   • The passenger airbag ON/OFF indicator illuminates based on the following timing chart in order to check the indicator light circuit.
   • When the occupant classification system has trouble, both the SRS warning light and passenger airbag ON/OFF indicator ("OFF") come on. In this case, check for DTCs for "Airbag System" first.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 1: Function Of Passenger Airbag On/Off Indicator

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT: 

Refer to the indicator operation table in Function of Passenger Airbag ON/OFF Indicator for the passenger airbag ON/OFF indicator operation when the ignition switch is turned to ON and approximately 6 seconds elapse.