P1405 is set when CPF is in generation mode to get rid of piled P.M but generation has not completed for exceeding designated time (600sec.) or temperature difference between VGT-CPF sensors signal is over set temperature (40℃) during cold condition. This DTC will be set by foreign materials in the CPF, Malfunctioning of DPS signal, Faulty EGTS - VGT or CPF or circuit malfunction.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage monitoring |
•
Dropped regeneration efficiency
•
Clogged CPF
•
DPS circuit
•
DPS component
•
EGTS circuit (VGT,CPF)
•
EGTS component (VGT,CPF) | ||
Enable Conditions |
•
IG KEY "ON" | |||
Threshold Value |
•
Regenerating duration lasts more than the specified duration - 600sec.
•
Temperature difference between VGT-CPF sensors signal is over set temperature (40℃) during cold condition. - 1.0sec. | |||
Diagnostic Time |
•
Refer to "Threshold Value" | |||
Fail Safe | Fuel Cut | NO |
•
Engine check lamp blinks. | |
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | BLINK | |||
