Connect scantool to Data Link Cable (DLC).
Monitor " Battery Voltage " parameter on the scantool.
Fig 1) Normal value without EGR actuator : Approx. 450 ~ 550 mg/stroke
4. Is the Current data displayed correctly ?
YES
▶ 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 .
NO
▶ Go to "W/Harness Inspection" procedure.