10-34891-01
1. SYSTEM OVERVIEW
When braking suddenly or braking on slippery roads, the vehicle keeps moving forward but the wheels
are locking and not rotating. If these happen, the vehicle may lose stability or rotate resulting in an
accident. ABS helps to maintain directional stability and control of the vehicle. ABS is designed to
secure more safety and increase the control of steering wheel during emergency braking situation.
But, ABS does not guarantee perfect safety beyond its physical limit. ABS in this vehicle contains EBD
function. In normal driving conditions, the brake system operates without ABS function.
1) Basic Theory of ABS Function
To give you a better understanding of the tasks and functions of ABS, we will first look at the physics
principles.
▶Stopping distance
The stopping distance depends on the vehicle weight and initial speed when braking starts. This also
applies for vehicle with ABS, where ABS always tries to set an optimum brake force on each wheel. As
great forces are exerted between the tires and the carriageway when braking, even with ABS the
wheels may scream and rubber is left on the road. With an ABS skid mark one may be able to clearly
recognize the tire profile. The skid mark of an ABS vehicle does not however leave any hint of the
speed of the vehicle in the case of an accident, as it can only be clearly drawn at the start of braking.
▶Brake force on a wheel
The maximum possible brake force on a wheel depends on the wheel load and the adhesion
coefficient between tire and carriageway. With a low adhesion coefficient the brake force, which can be
obtained is very low. You are bound to know the result already from driving on winter roads. With a
high adhesion coefficient on a dry road, the brake force, which can be obtained, is considerably higher.
The brake force, which can be obtained, can be calculated from below formula:
03-297410-01
Driver & Front
Passenger
Seat Warmer Switches
3) To Activate Driver & Front Passenger Seat Warmer
Operating condition ▶
Turn the ignition key to the "ON" position and start the engine.
If the cranking signal is inputted, the seat warmer stops working during cranking.
Operation description ▶
When pressing the seat warmer switch for the driver and/or front passenger seat with IGN ON, the
seat warmer operates. Press the switch again to stop the seat warmer.
Operation procedures ▶
When pressing the seat warmer switch for the driver and/or front passenger seat, the seat warmer
relay in the ICM box is activated to supply power to the seat warmer.
ICM Box Driver & Front
Passenger
Seat Warmer Activated
The driver and front passenger seat warmers have separate circuits, allowing them to function
independently.
