General Description

P244A is set when ECU remember the maximum differential pressure and emission volume in normal operating conditions within a driving cycle.then Key-off and then on After-run compare mapping with the minimum differential pressure and finally determune whether the DPF damage occurs

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

•

Voltage monitoring

1.

DPS system

Enable Conditions

•

Key-off and then on After-run

Threshold value

•

Differncial pressure is above above maximun at steady state

Diagnosis Time

•

20 msec.

Fail Safe

Fuel cut

NO

•

-

EGR Off

NO

Fuel Limit

NO

Check Lamp

ON

Яндекс.Метрика