Pre-Collision System

PRE-COLLISION: PRE-COLLISION SYSTEM: INITIALIZATION

1. Precautions for Seat Belt Control ECU Replacement

The seat belt control ECU operates the pre-collision system based on the stored data that informs that the vehicle is LHD or RHD model. LHD or RHD refers to the seating position of the driver, not which side of the road the vehicle is driven on.

Therefore, when replacing the seat belt control ECU, it is necessary to store the information about whether the vehicle is a LHD or RHD model. This can be performed by following the steps below:

(a) Turn the engine switch on (IG).

(b) The PCS warning light comes on for at least 3 seconds after turning the engine switch on (IG). Make sure that the warning light does not remain on.

(c) At this time, the seat belt control ECU receives vehicle configuration (LHD/RHD) information from the main body ECU and stores it in memory.

(1) Insert the tongue plate into the buckle.

(2) Connect Techstream to the DLC3.

(3) Turn the engine switch on (IG).

(4) Turn the tester on.

(5) Enter the following menus: Body Electrical / Pre-Collision / Active Test.

(6) Perform "Active Test" according to the display on the tester.

Pre-Collision:





NOTICE:
* The seat belts not equipped with a buckle switch cannot be operated.
* To prevent overheating the belt motor, this test cannot be activated repeatedly.
* Operate it using at least 30 seconds interval.