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