1995 previa within 20 miles following NC annual inspection both the odometer asnd speedometer stopped functioning and the 'service engine" icon on dash lit up. Any connection? Any ideas on fix?

If the speedo and odometer are both dead, you should have shifting problems and a check engine light. The speed sensor in the transmission has probably died.
If the speedo does not work but the odometer does, chances are the problem is in the speedometer head.

Next time you start driving and it does not work see if the cruise control and odometer work. Also is the check engine light on?

With no check engine light on, the speed sensor and wiring is ok. You have a bad speedometer. if you try the cruise control I bet it works. Keep in mind that the speedometer would not be repairable by a mechanic. You would have to send it out for repair if you could even find a speedometer repair shop anymore. It will need to be replaced by a new one or used if you can find one in a salvage yard.


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Suggestion:
1. Change oil every 3 months
2. If you really want to fix it... check the line, load with graphite as per manual.

Best

mechanical problem within the speedometer - can be repaired- consult local Saturn dealer

yes the speed sensor controls the speedometer and odometer and they are electrical no more drive cable installed

The gear on the end of the odometer cable probably has excessive wear which causes the odometer cable to spin. It is not completely worn out or it would not function at all; however, the fix is probably going to be the same as if it were broken; i.e., remove your present cable and replace with a new one.

1. Key in 0 or off position.

2. Press and hold odometer button and turn key to 1 or acc. position... like you're turning the car on, but don't crank the engine.

3. Keep button pressed until any of the following words appear in display: "oil service" or "inspection", with "reset" or "re". For vehicles with "high cluster", the fuel amount (in litres) remaining until next service is displayed (i.e. 3224).

4. Press and hold button again until "reset" or "re" flash.

5. While display is flashing, press button briefly to reset service interval indicator. After display has shown new interval, the following will appear in display for approx. 2 seconds:"END SIA"

You need to replace the VSS or vehicle speed sensor. Located on LH, lefthand rear of transmission.

Sheilah

Section 13-01: Instrument Cluster—Conventional 1995 Thunderbird, Cougar Workshop Manual REMOVAL AND INSTALLATION Instrument Cluster Removal and Installation

1. Disconnect battery ground cable (14301) .

1. Remove screws holding instrument panel reinforcement (017A28) .

1. Remove screws holding instrument panel lower shield (045G02) .

1. Remove fasteners holding steering wheel column as outlined in Section 11-04 . Gently lower steering column.

1. Remove fasteners holding the instrument panel finish panel (044D70) and gently pry off.
   
   
   
   

1. Remove four instrument cluster retaining screws. (Do not remove screws from the instrument cluster main lens (10887) and instrument cluster mask (10890) ).

1. Slide the instrument cluster (10849) to the right of the instrument panel opening and unhook the instrument panel harness from the back of the instrument cluster .

1. Remove the instrument cluster from the instrument panel (04320) .

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Speedometer/Odometer Federal law requires that the odometer in any replacement speedometer (17255) must register the same mileage as that registered in the removed speedometer . Since the speedometer mileage cannot be reset on this unit, affix odometer sticker to driver's door pillar and record original vehicle mileage. Removal

1. Disconnect battery ground cable (14301) .

1. Remove the instrument cluster (10849) as outlined.

1. Remove seven screws retaining the instrument cluster mask (10890) and instrument cluster main lens (10887) .

1. Remove speedometer assembly.

Installation

1. Position the speedometer assembly to the instrument cluster back plate (10848) and install.

1. Position the instrument cluster mask and instrument cluster main lens to the instrument cluster back plate and install the seven retaining screws.

1. Install the instrument cluster as outlined.

1. Connect battery ground cable and check the operation of the speedometer .

please rate if this helps

Has the speedometer failed to?? if so, you are probably in need of the cable that runs from your transmission to the back of the speedometer.This item is called the speedometer cable.If just the odometer itself failed then you have to pull the cluster and have it serviced typically i take mine to the dealer if that happens. (just the cluster,not the whole car.) hope this helps.