Antilock Brakes Operation; Abs Braking; Antilock Brakes Specifications - Chery Tiggo 2009 Service Manual

Operation

ABS Braking

• ABS operation is available at all vehicle speeds above 20 km/h. If a wheel locking tendency is detected during
a brake application, the brake system enters the ABS mode. During ABS braking, hydraulic pressure in the four
wheel circuits is modulated to prevent any wheel from locking. Each wheel circuit is designed with a set of
electric solenoids to allow modulation. The system can build and release pressure at each wheel, depending on
signals generated by the wheel speed sensors at each wheel and received at the ABS Module.
• There are a few performance characteristics of the ABS that may at first seem abnormal, but in fact are nor-
mal. These characteristics are described below.
− If the electrical system malfunctions, the Fail-Safe function is activated, the ABS becomes inoperative and
the ABS warning lamp turns on.
− During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
− Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
Specifications
Torque Specifications
DESCRIPTION
ABS Mounting Bolt (To Bracket)
ABS Mounting Bracket Screws (To Frame)
ABS Mounting Bracket Screw And Nut (To Frame)
ABS Wheel Speed Sensor Head Mounting Screw - Rear
Brake Tube Nuts
Wheel Mounting Nuts
36
12–
GENERAL INFORMATION
TORQUE (N·m)
10
20
20
10
10
110
Chery Automobile Co., Ltd.