Page 870 - Workshop Manual - Tunland (2017)

04-184 DIAGNOSTICS - ENGINE CONTROL SYSTEM

04 DTC inspection
DTC DTC definition Trouble location
conditions

• For the
regeneration of the
postprocessing
system to reduce
the carbon
deposition in the
postprocessing
diesel particulate • 后Postprocessing
filter, the diagnosis diesel oxidation
Postprocessing diesel
continues to run. catalyst
oxidation converter
P1664 The diagnosis • Postprocessing fuel
missing - the
check whether the injector
condition exists
temperature of • ECM and its
catalyst increases harness
during the active
regeneration
process of the
postprocessing
system, so as to
detect the catalytic
converter.

• For the
regeneration of the
postprocessing
system to reduce
the carbon
deposition in the
postprocessing
diesel particulate
• Postprocessing
Postprocessing filter, the diagnosis DOC oxidation
preheat diesel continues to run. catalyst
P3158 oxidation converter The diagnosis • Postprocessing
missing - the check whether the system
condition exists temperature of • ECM
catalyst increases
during the active
regeneration
process of the
postprocessing
system, so as to
detect the catalytic
converter.

Diagnosis Procedure