Scantool Diagnostics
Electronic Hydraulic Power Steering System
C1622 EMS invalid vehicle speed - Scantool Diagnostics
Monitor Scantool Data
1. Connect scantool to data link connector (DLC).
2. Engine start and drive the vehicle on the road.
3. Monitor the "VSS and RPM" parameters on the scantool.
(Check the data of EHPS with ECM system and confirm output values related to CAN communication.)
Fig.1) Engine "ON"
Fig.2) Engine "ON" - (ECM's current data)
4. Is parameter displayed within specifications?