Page 169 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 115

DTC flash code DTC definition DTC check condition Failed part IN

● Ignition switch: ON
DI
Left rear wheel speed sensor Check if the sensor circuit is

to battery power short-circuit short to battery or there is
resistance EG

● Ignition switch: ON
Left rear wheel speed sensor ● Sensor circuit TR
Check if the sensor circuit is
short-to-ground
4+4 ● Sensor
short to ground
● ABS ECU AX
● Ignition switch: ON
Left rear wheel speed sensor
Check if the sensor circuit is
open-circuit FR
open

Left rear wheel speed sensor ● Ignition switch: ON
ST
short-circuit Sensor input and output short

● Ignition switch: ON
BR
● The scale of tyre gear ring ● Check the tyre model and

Right front tire is not suitable does not meet the the number of teeth of the
BW
requirement of WABCO gear ring

company
EL
● Ignition switch: ON

Right front wheel speed ● Mismatch the sensor input ● Sensor wiring error

sensor harness is mismatched and output, or mismatch ● Sensor

other wire harness.

● Sensor installation
5+1 incorrect
Abnormal speed of right ● Ignition switch: ON

front wheel speed sensor ● The frame vibrates and is ● Sensor gear ring error
(vibration) not stable when braking or worn
● ABS ECU

● Check the harness and
connection of sensor
The signal frequency of right ● Ignition switch: ON ● Check if the sensor
front wheel speed sensor is ● Detected sensor signal vibrates when braking. If no
too high abnormal vibration at braking
repeatedly, replace the sensor

or ECU

DI-115