Scantool Diagnostics

P0727 Engine Speed Input Circuit No Signal

Scantool Diagnostics

Monitor Scantool Data

1. Connect scantool to Data Link Connector (DLC).
2. Self-diagnose 4WD ECM with scantool.
3. Check the change of the sensor's value as RPM value varies according to the change of accelerator.
4. If the sensor's value is stuck, self-diagnose ECM with scantool. So if there are any DTCs related to the sensor, inspect it at first and check if the DTCs have been erased.
5. In a case that there is no DTC, select "RPM" item among the service data.
6. Check the sensor's change according to the accelerator pedal's change.

Specification : It varies according to the accelerator pedal's change.








Fig.1) Engine speed (4WD)
Fig.2) Engine speed (ECM)
7. Is parameter displayed within specifications?