I don't recall any special bulletins about this, but I've seen two basic problems.
- The wires to the temp sensor are broken or the temp sensor is disconnected. The connector is at the very left front of the vehicle. If you remove the left front splash shield, you'll get a good view of this little two-pin connector. If the wires are broken, you'll probably need to replace the terminal in the connector. That'll be difficult to do unless you have the special tooling required to take apart the connector and a selection of terminals from which to select the proper one.
- There's an actual open circuit in the connector itself. In this case, you'll need to replace the fluid temperature sensor, which is inside the pan clipped to the valve body. You'll need a pick or similar implement to remove the retaining clip and pull the sensor end of the connector inside the transmission. Most diy-ers would be able to do this.
I'd recommend looking at the connector/wiring (and playing with it a little right at the connector) to make sure it's not broken. If the wiring and connector are okay and you'd be comfortable doing your own fluid and filter service on your transmission, go to the dealer, get a filter and gasket kit, 5 quarts of fluid, and a new sensor. That way, you'll probably be all repaired *and* have a new filter inside the transmission.
Also, you may want to register for an account at
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It requires IE, but it's free, and you'll be able to see the shop manuals and illustrations as well as wiring diagrams and technical service bulletins.