Suzuki SX4 Service Manual page 642

4F-4 Electronic Stability Program:
2. Brake caliper (front-right)
Steering angle sensor
The steering angle sensor is assembled with the contact coil as a unit and mounted to the steering column. Detecting
the angle as the steering wheel is turned, it sends that information to the ESP® control module.
Yaw rate / G sensor
The yaw rate / G sensor consists of the yaw rate (angular velocity in the vehicle turning direction) sensor and right-left
G (acceleration in right-left direction) sensor and is mounted to the P/S controller bracket at the lower part of the center
console. It detects the angular velocity in the vehicle turning direction and movement in the right-left direction, and
then it sends that information to ESP® control module.
Wheel speed sensor
The vehicle speed is detected by the hall IC type wheel speed sensor (1) and encoder (4). The wheel speed sensor is
fixed to the knuckle and includes a hall IC (3) having 2 hall elements (2).
The encoder consisting of a permanent magnet which has S/N electrodes turns inside of the wheel hub along with the
wheel. The wheel speed sensor outputs alternate current.
As the cycle of the alternate current is in proportion to the revolution speed of the encoder, this AC signal (5) is
converted into the voltage signal in the ESP® control module (6) for detection of the wheel speed.
N
S
10
11
12
8
8
9
9
4 3
3. Brake caliper (front-left)
4
3
S
N
S
N
S
N
S
N
2
1
6
12
8
2
4. Brake caliper (rear-right)
1
5
10
11
7
8
9
9
5
5. Brake caliper (rear-left)
6
12V
I7RS0B460002-01
I7RS0B460003-01