Page 273 - Foton Workshop Manual - Tunland (AT)
P. 273
DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-127
Failure code Diagnostic items (DTC definition) Trouble location
• Postprocessing diesel particulate
postprocessing diesel particulate filter filter
pressure differential - data is valid, • Postprocessing diesel particulate
P2639
but above normal operating range - filter differential pressure sensor
lowest severity level and its harness 04
• ECM
Engine coolant temperature - data • Coolant temperature sensor and
P2963 valid but above normal operating its harness
range - lowest severity level • ECM
• Intake manifold pressure tempera-
Intake Manifold 1 temperature - data ture sensor and its harness
P2964 is valid but above normal operating
• Intake system
range - lowest severity level
• ECM
• Intake manifold pressure tempera-
Intake Manifold 1 pressure - data is ture sensor and its harness
P2973
unstable, intermittent or incorrect • Intake system
• ECM
Postprocessing preheat diesel oxida- • Postprocessing DOC temperature
tion converter inlet temperature sen- sensor and postprocessing DOC
P3152 sor circuit - voltage is above normal temperature sensor module and
or shorted to high voltage power wiring harness
supply • ECM
Postprocessing preheat diesel oxida- • Postprocessing DOC sensor and
tion converter inlet temperature sen-
postprocessing DOC temperature
P3153 sor circuit - voltage is below normal
sensor module and wiring harness
or shorted to low voltage power sup-
• ECM
ply
Postprocessing preheat diesel oxida- • Postprocessing DOC temperature
tion converter inlet temperature sen- sensor and postprocessing DOC
P3155 sor circuit - voltage is above normal temperature sensor module and
or shorted to high voltage power wiring harness
supply • ECM
Postprocessing preheat diesel oxida- • Postprocessing DOC temperature
tion converter inlet temperature sen- sensor and postprocessing DOC
P3156 sor circuit - voltage is below normal temperature sensor module and
or shorted to low voltage power sup- wiring harness
ply • ECM
• Postprocessing DOC oxidation
Postprocessing preheat diesel oxida-
catalyst
P3158 tion converter missing - Problems
• Postprocessing system
exist
• ECM
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