Page 721 - Workshop Manual - Tunland (2017)
P. 721

DIAGNOSTICS - ENGINE CONTROL SYSTEM                            04-35

                                                                                                                     04
                  Failure code     Diagnostic items (DTC definition)                Trouble location
                                                                          • Injector
                                  Postprocessing preheat diesel oxida-
                                                                          • Postprocessing DOC oxidation
                                  tion converter inlet temperature - data
                  P3247                                                     catalyst
                                  is valid but above normal operating
                                                                          • Postprocessing system
                                  range - medium severity level
                                                                          • ECM

                                                                          • Injector
                                  Postprocessing preheat diesel oxida-
                                                                          • Postprocessing DOC oxidation
                                  tion catalytic outlet temperature -
                  P3249                                                     catalyst
                                  Data is valid but above normal oper-
                                                                          • Postprocessing system
                                  ating range (lowest severity level)
                                                                          • ECM
                                                                          • Postprocessing DOC inlet temper-
                                                                            ature sensor
                                  Postprocessing 1 diesel oxidation       • Postprocessing DOC oxidation
                                  converter inlet temperature - data is     catalyst
                  P3251
                                  valid but above normal operating        • Postprocessing DPF temperature
                                  range - medium severity level             sensor and its harness
                                                                          • Postprocessing system
                                                                          • ECM

                                                                          • Postprocessing DPF inlet tempera-
                                  Postprocessing 1 diesel particulate       ture sensor
                                  filter inlet temperature - data is valid  • Postprocessing DPF temperature
                  P3253
                                  but above normal operating range -        sensor module and its harness
                                  medium severity level                   • Postprocessing system
                                                                          • ECM


                                                                          • Postprocessing DPF inlet tempera-
                                  Postprocessing 1 diesel particulate       ture sensor
                                  filter inlet temperature - data is valid  • Postprocessing DPF temperature
                  P3254
                                  but above normal operating range -        sensor module and its harness
                                  lowest severity level                   • Postprocessing system
                                                                          • ECM

                                                                          • Postprocessing DPF outlet temper-
                                  Postprocessing diesel particulate fil-    ature sensor
                                  ter outlet temperature - data is valid  • Postprocessing DPF temperature
                  P3255
                                  but above normal operating range -        sensor module and its harness
                                  medium severity level                   • Postprocessing system
                                                                          • ECM

                                                                          • Postprocessing DPF outlet temper-
                                  Postprocessing diesel particulate fil-
                                                                            ature sensor
                                  ter outlet temperature - data is valid
                  P3256                                                   • Postprocessing DPF temperature
                                  but above normal operating range -
                                                                            sensor module and its harness
                                  lowest severity level
                                                                          • Postprocessing system
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