Jim Grant's Tech Tips
91
Nissan Stanza, Speed-O Problems
Q: My daughter has a '91 Nissan Stanza that
has a broken odometer. I read one of your articles on a '94 Mazda that
the problem may have been due to a bad VSS. She would like to trade the
car in the spring. How costly would it be to fix the odometer? Does Nissan
have a VSS?.....Phyllis
A: Yes
your Nissan Stanza has a Vehicle Speed Sensor (VSS). The VSS is mounted
in the transmission/transaxle and it creates an electrical signal in relationship
to tire revolution. This electrical signal is used by the speedometer
and odometer and by the vehicle’s computer. If the VSS has failed
neither the speedometer (vehicle speed) nor odometer (distance traveled)
would function. If one or the other is functioning then the problem is
not with the VSS. Also, if the VSS has failed there would be a Diagnostic
Trouble Code (DTC) #14 for a Vehicle Speed Sensor problem stored in the
vehicle’s computer.
As for cost
of repairs? It takes just about a 1/2 hour to service the VSS and the cost
is in the area of $100 new.
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