Page 171 - Foton Workshop Manual - Tunland (AT)
P. 171

DIAGNOSTICS - ANTI-LOCK BRAKING SYSTEM (ABS)                       04-25

                                                           (b)    Disconnect the socket connector B003 of right
                                                                  rear wheel speed sensor and the socket
                                                                  connector B002 of left rear wheel speed
                                                                  sensor.




                                                                                                                     04








                                                           (c)    Measure the resistance value between the
                                                                  pins of right and left rear wheel speed
                                                                  sensors.
                                                                  Standard electrical resistance (check
                                                                  whether there existent an open circuit)

                                                               Connection of the           Standard value
                                                                   multimeter

                                                             B003(1)-B003(2)
                                                                                             0.9 - 1.8 KΩ
                                                             B002(1)-B002(2)


                                                           (d)    Measure the voltage between the pin of the
                                                                  connector of wheel speed sensor and ground.
                                                                  Standard resistance (check whether there
                                                                  is short circuit)

                                                               Connection of the           Standard value
                                                                   multimeter

                                                              B003(1) - ground

                                                              B003(2) - ground
                                                                                               ≥ 1 MΩ
                                                               B002(1)- ground

                                                               B002(2)- ground


                 Check whether the result is normal?
                 Yes> go to step 3

                 NO > Replace or change the wheel speed sensor.

                 3 .    Check the rear wheel speed sensor output signal












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