Page 157 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 103

System diagram IN

Circuit
DI
Gas circuit
Air dryer Four
Air cylinder
circuit
compressor valve EG
protective
Air Air cylinder
TR
Exhaust braking
butterfly valve
Clutch boosting
AX
Manual
braking valve
FR

ABS control unit Master ST
cylinder

BR
Quick release
valve

Right rear
Right front
Braking sensor
relay air BW
chamber
Solenoid Solenoid Braking
valve valve air
chamber
Quick release valve Relay valve
EL
Braking
Solenoid Solenoid air
Braking valve valve chamber
Left front air Left rear
sensor chamber
sensor

Instruction of system part

S/N Part Quantity Function

Handle the signals from the sensor, and send ABS control signal to
1 Parts of ABS control unit 1 solenoid valve; it can perform system self-diagnosis, and send the
system state signal to combination instrument.

The sensor is an electromagnetic sensor, which relatively
2 Sensor (wheel) 4
moves with gear ring to produce an impulse signal.
Gear ring is magnetic iron material, which can cut the magnetic
3 ABS gear ring 4
field of sensor during the rotation of wheel.

Inflate or drain the brake air chamber, or keep the pressure of brake
4 Solenoid valve 4
air chamber.
Combination instrument (ABS Remind the driver whether ABS system works normally, and the
5 1
system fault indicator lamp) instrument can be used as a flashing code indicator lamp.

DI-103