Ignition switch "OFF"

Refer to "Shop Manual" and disconnect DPS connector.

Inspect for corrosion or contamination on DPS terminal.

Inspect for proper installation of DPS, DPS hose and leakage on exhaust system.

Inspect for foreign substance on DPS and DPF assembly.

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 "DPS Signal Inspection" procedure.

Ignition switch "OFF"

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

Channel A (+) : 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 Software Management" with GDS.

Select "Differential Pressure Sensor Change"

Fig.1) Vehicle S/W Management list of Engine

Fig.2) "Essential Work After Component Replacement"

Fig.3) Differential Pressure Sensor Change

Fig.4) Complete