Page 171 - Foton Workshop Manual - Auman EST-M
P. 171

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts   DI - 117


                   DTC flash code          DTC definition       DTC check condition         Failed part           IN

                                                              ● Ignition switch: ON
                                                              ● The scale of tyre gear ring   ●  Check  the  tyre  model  and   DI
                                      Left rear wheel speed sensor
                                                              does not meet the      the  number  of  teeth  of  the
                                      harness is mismatched
                                                              requirement of WABCO   gear ring
                                                                                                                  EG
                                                              company

                                                              ● Ignition switch: ON
                                      Abnormal  speed  of  left                                                   TR
                                                              ● Mismatch the sensor input  ● Sensor wiring error
                       5+4            rear  wheel  speed  sensor
                                                              and  output,  or  mismatch  ● Sensor
                                      (vibration)
                                                              other wire harness.                                 AX
                                                                                     ● Sensor installation
                                      The  signal  frequency  of  left  ● Ignition switch: ON   incorrect         FR
                                      rear wheel speed sensor is too  ●  The  frame  vibrates  and  is  ● Sensor gear ring error

                                      high                    not stable when braking   or worn
                                                                                                                  ST
                                                                                     ● ABS ECU

                                                                                     ●  Check  the  harness  and
                                                                                                                  BR
                                                                                     connection of sensor
                                      The  signal  frequency  of  left  ● Ignition switch: ON   ● Check if the sensor
                       5+5            rear wheel speed sensor is too  ●  Detected  sensor  signal  vibrates when braking. If no   BW
                                      high                    abnormal               vibration at braking
                                                                                     repeatedly, replace the sensor
                                                                                                                  EL
                                                                                     or ECU

                                                                                     ●  Use  a  WABCO  gear  ring

                                                                                     tester  to  check  if  it  is
                                                              ● Ignition switch: ON
                                      The  ring  gear  of  right                     damaged or misses any teeth
                                                              ●  When  the  wheel  speed  is
                       6+1            front  wheel  speed  sensor  is                ●  Adjust  the  clearance  of
                                                              higher  than  10km/h,  cannot
                                      not correct                                    sensor  and  gear  ring  if there
                                                              detect the wheel signal
                                                                                     are  too  much  clearances  at

                                                                                     the same time

                                                                                     ●  Use  a  WABCO  gear  ring

                                                                                     tester  to  check  if  it  is
                                                              ● Ignition switch: ON
                                      The  ring  gear  of  left                      damaged or misses any teeth
                                                              ●  When  the  wheel  speed  is
                       6+2            front  wheel  speed  sensor  is                ●  Adjust  the  clearance  of
                                                              higher  than  10km/h,  cannot
                                      not correct                                    sensor  and  gear  ring  if there
                                                              detect the wheel signal
                                                                                     are  too  much  clearances  at

                                                                                     the same time

                                                                                     ●  Use  a  WABCO  gear  ring

                                                                                     tester  to  check  if  it  is
                                                              ● Ignition switch: ON
                                      The  ring  gear  of  right                     damaged or misses any teeth
                                                              ●  When  the  wheel  speed  is
                       6+3            rear wheel speed sensor is not                 ●  Adjust  the  clearance  of
                                                              higher  than  10km/h,  cannot
                                      correct                                        sensor  and  gear  ring  if there
                                                              detect the wheel signal
                                                                                     are  too  much  clearances  at
                                                                                     the same time



                                                          DI-117
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