Page 399 - Foton Workshop Manual - Tunland (AT)
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DIAGNOSTICS - ENGINE CONTROL SYSTEM                          04-253


                                                                    DTC inspection
                          DTC                DTC definition                                 Trouble location
                                                                       conditions
                                                                                          • Variable geometry
                                                                                            turbocharger (VGT)
                                                                  • During engine
                                            Intake manifold 1                               actuator and its
                                                                    operation, the
                         P3361            pressure - abnormal                               harness                  04
                                                                    diagnosis continues
                                               update rate                                • Postprocessing
                                                                    to run
                                                                                            system
                                                                                          • ECM


                 Diagnosis Procedure

                      NOTICE

                 •      To implement the following steps, ensure that ECM is grounded properly.
                 •      Before conducting electric diagnosis, do refer to the reference circuit diagram
                        and the element information.
                 •      Before conducting measurement, check the pins of connectors for rupture,
                        looseness and rust, and ensure that the pins are contacted properly.
                 •      If the connection is good, check the sensor signal voltage when moving the
                        connector and harness. If a fault occurs, the voltage display on the diagnostic
                        instrument will change.


                 1 .    DTC inspection
                 (a)    Ignition switch: OFF.
                 (b)    Connect the diagnostic apparatus.
                 (c)    Use the diagnostic apparatus, read the fault code.
                 (d)    Confirm whether there is fault code related to intake manifold 1 pressure sensor ?

                 Is the inspection result normal?
                 YES>To step 2.
                 NO>Intermittent trouble exists.


                 2 .    Check the power circuit of the turbocharger actuator
                 (a)    Ignition switch: OFF.
                 (b)    Disconnect the battery negative cable.
                 (c)    Disconnect turbocharger actuator connector E05.
                 (d)    Connect the battery negative cable.
                 (e)    Ignition switch: ON.



















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