Code 42 is a fault with the Vehicle Speed Sensor and this would result in the O/D light flashing and erratic gear shifting.
Our database does not have any testing information for this component. The VSS is inside the meter cluster and if the speedometer is working ( it is cable driven) you have a fault with the meter cluster. Most likely you would not be able to use the cruise control.
Friday, August 5th, 2011 AT 12:31 PM