Page 797 - Workshop Manual - Tunland (2017)
P. 797

DIAGNOSTICS - ENGINE CONTROL SYSTEM                          04-111

                 P352,P386,SENSOR POWER SUPPLY 1 CIRCUIT FAULT                                                       04

                 P352-SENSOR POWER 1 CIRCUIT - VOLTAGE IS BELOW
                 NORMAL OR SHORTED TO LOW VOLTAGE POWER SUPPLY

                 P386- SENSOR POWER 1 CIRCUIT - VOLTAGE IS ABOVE
                 NORMAL OR SHORTED TO HIGH VOLTAGE POWER SUPPLY

                 Description
                 1 .    The sensor power 1 of the engine control module (ECM) provides 5V power to
                        several engine sensors.

                                                                    DTC inspection
                          DTC                DTC definition                                 Trouble location
                                                                       conditions

                                             Sensor power 1
                                            circuit - voltage is
                          P352              below normal or
                                                                                          • The harness
                                          shorted to low voltage  • During engine
                                              power supply          operation, the          between the sensor
                                                                    diagnosis continues     and the ECM is
                                             Sensor power 1                                 open or shorted
                                            circuit - voltage is    to run                • ECM
                          P386              above normal or
                                             shorted to high
                                          voltage power supply

                 Diagnosis Procedure

                      CAUTION

                 •      The diagnosis procedure of each sensor and the ECM fault in this fault refer to
                        Chapter 04 - diagnostic - engine control system.
   792   793   794   795   796   797   798   799   800   801   802