Page 275 - Foton Workshop Manual - Tunland (AT)

DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-129

Failure code Diagnostic items (DTC definition) Trouble location
• ECM

• Postprocessing DPF inlet tempera-
Postprocessing 1 diesel particulate ture sensor
filter inlet temperature - data is valid • Postprocessing DPF temperature
P3254 04
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 • Postprocessing DPF temperature
P3256
but above normal operating range - sensor module and its harness
lowest severity level • Postprocessing system
• ECM

• Postprocessing DPF inlet tempera-
Postprocessing diesel particulate fil- ture sensor
ter inlet temperature - data is valid • Postprocessing DPF temperature
P3311
but above normal operating range - sensor module and its harness
highest severity level • Postprocessing system
• ECM

• Postprocessing DPF outlet temper-
Postprocessing diesel particulate fil- ature sensor
ter outlet temperature - data is valid • Postprocessing DPF temperature
P3312
but above normal operating range - sensor module and its harness
highest severity level • Postprocessing system
• ECM

• Postprocessing DOC inlet temper-
Postprocessing diesel oxidation con- ature sensor
verter inlet temperature sensor circuit • Postprocessing DPF temperature
P3313
- voltage is below normal or shorted sensor module and its harness
to low voltage power supply • Postprocessing system
• ECM

Postprocessing diesel oxidation con- • Postprocessing DOC inlet temper-
verter inlet temperature sensor circuit ature sensor
P3314
- voltage is above normal or shorted • Postprocessing DPF temperature
to high voltage power supply sensor module and its harness

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