• If the connector is connected and the ignition switch is turned to the ON position with the SAS control module not secured completely using the installation nuts, the SAS control module may detect a degree of impact even when something contacts it lightly, deploying the air bag module and pre-tensioner seat belt accidentally.
Caution
• When replacing the SAS control module, perform the configuration to assure that the system operates correctly. (See CONFIGURATION.)
Note
• The SRS air bag system can be identified by whether or not the seat track position sensor is present.
― Standard deployment control system: Without seat track position sensor
― Two-step deployment control system: With seat track position sensor
1. When replacing the SAS control module, perform configuration using the following procedure.
(1) Connect the M-MDS to the DLC-2.
(2) Switch the ignition ON (engine off).
(3) Activate the M-MDS and perform the following procedure.
1) Press [Start] to start the vehicle identification.
2) Press the [Toolbox] tab.
3) Press the [Work Support] icon.
4) Press [Configuration].
5) Press [Run] to perform the configuration.
6) Press [SAS].
7) Verify that the ignition is switched ON (engine off) and press [Next].
• If the ignition cannot be switched ON (engine off), leave it as it is and press [Next]
8) When [Install the new ECU] is displayed, move to the SAS control module replacement procedure.
(7) Verify that the air bag/front seat belt pre-tensioner system warning light turns on for approx. 6 s and turns off.
• If the air bag/front seat belt pre-tensioner system warning light does not operate properly, refer to the on-board diagnostic system and inspect the system. (See DTC INSPECTION.)
