Page 1845 - Foton Workshop Manual - Aumark (BJ1099)

CIRCUIT - SYSTEM SCHEMATIC DIAGRAM 61-55

System description:
ABS (antilock braking system) is to utilize the wheel speed detected by the wheel speed
sensor to transmit the wheel speed signal to the control module which will control the
wheel slip ratio to keep the wheels rotating by repeatedly increasing or decreasing the
braking pressure on the wheel according to the input wheel speed. With the vehicle 61
braked, this system can prevent the wheels from being locked, and can also maintain the
steering capability of the vehicle to guarantee the braking and steering stability and thus
avoid any side slip or deviation.
Signal input
The battery current is transmitted into the ABS control module pins 25 and 1 via the
fuses F28 and F17 in the engine compartment fuse box, to provide electric energy to the
solenoid valve and motor in the ABS control module.
Wheel speed signal
The wheel speed signal is an alternative signal which is provided by four wheel speed
sensors respectively: Left front wheel speed sensor, right front wheel sped sensor, left rear
wheel speed sensor, and right rear wheel speed sensor.
Service brake signal
The battery current is transmitted into the brake switch 1 pin through F4 in internal fuse box
via the fuse F2 in the engine compartment fuse box; when the brake pedal is depressed,
the current will be output from the brake switch pin 2 to reach the ABS control module pin
30 and then into the service brake signal.
Acceleration sensor signal
Detecting the vehicle deceleration, and identify the current road surface condition, perform
four-wheel drive controlling .
Yaw Rate And Steering Wheel Angle Signal
Detecting the current vehicle axle direction and lateral drift rate, control the vehicle stability.
ABS/ESP indicator lamp signal
ABS/ESP system self-test signal is sent to the combination instruments via CAN
communication system.

：Parts Location

No. Reference harness No. Reference harness

A02 Engine compartment wiring harness C04 Front wall instrument wiring harness

A31 Engine compartment wiring harness C23 Front wall instrument wiring harness
A40 Engine compartment wiring harness D11 Floor wiring harness
B03 Frame wiring harness D66 Floor wiring harness

：Connectors Among The Harness

No. No. Reference harness(Connector location)

Front wall instrument wiring harness and engine compartment wiring harness
C202 A302
(Left side of instrument cross member)

Page 1845