Page 312 - Foton Workshop Manual - Tunland (AT)
P. 312

04-166                     DIAGNOSTICS - ENGINE CONTROL SYSTEM

                                                      (e)    Use a multimeter to measure the resistance
                                                             between the pin 3, 4, 5 of electronic throttle
                                                             control actuator connector E17 and the pin
                                                             67, 91, 53 of ECM connector E01
                                                             respectively.
                                                             Standard resistance
      04
                                                       Multimeter connection
                                                                                      Standard value
                                                                 pin
                                                       E17(3)- E01(67)                    <10 Ω

                                                       E17(4)- E01(91)                    <10 Ω

                                                       E17(5)- E01(53)                    <10 Ω


                                                      (f)    Use a multimeter to measure the voltage
                                                             between the pin 3, 4, 5 of electronic throttle
                                                             control actuator connector E17 and the
                                                             ground respectively.
                                                             Standard resistance

                                                       Multimeter connection
                                                                                      Standard value
                                                                 pin
                                                          E17(3)- ground                 > 10 MΩ

                                                          E17(4)- ground                 > 10 MΩ

                                                          E17(5)- ground                 > 10 MΩ




           Is the inspection result normal?
           YES>To step 4.
           No > Maintain or replace the harness.


           4 .    eplace electronic throttle control actuator
           (a)    Replace electronic throttle control actuator。
           (b)    Use a diagnostic apparatus to perform DTC verification procedures.
           (c)    Implement the steps to read sensor data stream.
           (d)    Check whether DTC exists.

           Is the inspection result normal?
           YES>Replace electronic throttle control actuator.
           NO >To step 5.


           5 .    Replace ECM
           (a)    Replace ECM.
           (b)    Use a diagnostic apparatus to perform DTC verification procedures.
           (c)    Implement the steps to read sensor data stream.




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