With Manufacturer's Scan Tool

NOTE: This is the only information provided by the manufacturer for reading trouble codes for this system.

NOTE:
If the ignition switch is turned ON with the airbag sensor assembly connectors disconnected, or if a vehicle battery is removed with the ignition switch ON, the system will determine this condition as a failure and it will automatically call the call center. When an accidental call is made automatically, access to the call center and ask them to cut off the line.

To prevent this, perform the following when working on operation related to the airbag sensor assembly or battery:
- Disconnect the connectors of the mayday ECU and the back-up battery before disconnecting the airbag sensor assembly connector.
- Be sure that the ignition switch is OFF when removing a vehicle battery.
- If not signal has been received from the airbag sensor assembly since the ignition switch was turned ON, a service call will be made.
- If good signal reception from the airbag sensor assembly after the ignition switch ON is interrupted, an emergency call will be made.




DTC CHECK (Using LEXUS hand-held tester)
a. Hook up the LEXUS hand-held tester to the DLC3.

b. Read the DTCs by following the prompts on the tester screen.

HINT: Please refer to the LEXUS hand-held tester operator's manual for further details.