Page 93 - Foton Workshop Manual - Auman EST-M
P. 93

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts   DI - 39

              Signal data:                                                                                        IN

                               Continue to use                                   Voltage
                                                                                                                  DI
                                    1                                           0.75~4.1V

                                    2                                           0.375~2.05V
                                                                                                                  EG
              Check if the result is ok?
              Yes>intermittent failure                                                                            TR
              NO>go to Step 2.

                                                           Caution                                                AX
              If the voltage is changed but discontinuous, replace the accelerator pedal sensor.

              2. Check of terminal and connector                                                                  FR

              a. Many faults of electric system are caused by poor connector harness and terminals, and they may be also
              caused by the interference, mechanical or chemical damages of other electric systems.               ST
              b. Thoroughly check the connector for loosening, poor connection, bending, corrosion, pollution, deterioration
              or damages.
                                                                                                                  BR
              c. Repair or replace it and check the vehicle if necessary.

              Check if the result is ok?                                                                          BW

              Yes>go to Step 3.
              NO> check and repair relevant failure                                                               EL
              3. Check the power circuit of accelerator pedal sensor.

              a. Ignition switch: ON.

                                                        b.  Check  the  voltage  of  pins  3  and  4  to  ground  from  the
                                                        back of accelerator pedal sensor connector B019.
                                                        Standard voltage:
                                                            Multimeter connection       Standard value


                                                             B0019(3)-grounding
                                                                                           About 5V
                                                             B0019(4)-grounding




              Check if the result is ok?

              Yes>go to Step 4.

              NO>repair or replace the harness

              4. Check the ground circuit of accelerator pedal sensor.

              a. Ignition switch: LOCK.

              b. Disconnect the battery negative pole

              c. Disconnect the accelerator pedal sensor connector B019 and ECM connector F099.






                                                          DI-039
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