Install Scantool and select engine part.
With raise vehicle on lift , start and run engine in gear.
Let vehicle idle and monitor the "VEHICLE SPEED" parameter on the Scantool data list.
Does Scantool indicate near the specified value?
[Specification] 10km/h or less(6mph or less)
YES
Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector.
Fault was repaired and ECM memory was not cleared.
If the problem works out, Go to "Verification of Vehicle Repair" procedure.
NO
Go to "Inspection & Repair" procedure.