Ignition switch "OFF"

Refer to "Shop Manual" and remove DPS.

Inspect for corrosion or contamination on DPS terminal.

Inspect for proper installation of DPS and hose.

Inspect for foreing substance on DPF assembly or DPS.

Inspect for leakage on exhaust system.

Have any problems been found?

	▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
	▶Go to "CPF Service Regeneration" procedure.

Ignition switch "OFF"

Connect GDS to Data Link Connector (DLC).

Ignition switch "ON" & Engine "ON"

Perform "CPF Service Regeneration" in "Vehicle S/W Management" with GDS.

Operate the vehicle in according to regeneration condition.

Fig.1) Vehicle S/W Management list of U2 engine

Fig.2) CPF Service Regeneration Condition

Fig.3) CPF Regeneration Information

Fig.4) CPF Condition

Fig.5) CPF Regeneration Heating 1

Fig.6) CPF Regeneration Heating 2

Fig.7) CPF Regeneration

Fig 8) CPF Cooldown

Fig.9) Complete

Does the result of the function normal?

	▶ This fault is caused by excessive PM(soot) on CPF. Check for conditions that might affect CPF generation during vehicle operation. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
	▶ Go to "DPS Signal Inspection" procedure.

Ignition switch "OFF"

Connect VMI to GDS and set up the Oscilloscope.(2 Channel):

Channel A (+) : Pin No. 2 (Signal) terminal (DPS Harness Connector)

Channel A (-) : Ground

Ignition switch "ON" & Engine "OFF"

Inspection condition : Ignition switch "ON"

Is the measured value within specification?

	▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of vehicle Repair" procedure.
	▶ Carefully re-do this troubleshooting guide steps. ▶ If no problems were found with the circuits or connectors, replace the DPS and go to "Verification of Vehicle Repair" procedure.

Ignition Switch "OFF"

Connect GDS to Data Link Connector(DLC).

Ignition Switch "ON" & Engine "OFF"

Perform "Essential Work After Component Replacement" in "Vehicle S/W Management" with GDS.

Select "Differential Pressure Sensor Change"

Fig.1) Vehicle S/W Management list of U2 engine

Fig.2) "Essential Work After Component Replacement"

Fig.3) Differential Pressure Sensor Change

Fig.4) Complete