I'm looking too. I have a 1995 model.

change it

Try replacing oil pressure switch. Your oil pressure switch controls fuel pump. (safety issue) in case of roll over or accident so fuel pump doesn't run while engine stalled or of.

Check fuses 13 and 37. Also check relay and resistor. The relay is usually in the engine compartment relay box. It should click when the blower switch is turned on. The resistor will show signs of burning if it's bad.

RESISTOR REMOVAL & INSTALLATION The blower resistor is located on the front of the blower housing.

1. Disconnect the negative battery cable.
2. Remove the glove box assembly, if required.
3. Disconnect the resistor wire connector.
4. Remove the resistor attaching screws.
5. Remove the blower motor resistor.
6. Installation is the reverse of removal.
7. Install the glove box if it was removed and connect the negative battery cable.

Hello. Will do my best to help, You have this listed as a 1998 DeVille, in the verbage you say its a 1995. okay if the blower motor continues to run when you turn the key off then regardless of the year model the electronics in the blower motor has failed and it will have to be replaced. If its running with the key off you can disconnect it under the hood. It is located just off center to the driver side. It has a 3 wire connector this will keep the battery from going dead. Hope this helps. Thanks

Blower Motor Switch Resistor Assembly REMOVAL & INSTALLATION Fig. 1: Remove the resistor assembly by gently popping it out of the evaporator housing using a screwdriver

1. Disconnect the negative battery cable.
2. Remove the push pins and remove the upper footwell panel from under the passenger side of the instrument panel.
3. Unplug the connector from the blower motor resistor assembly.
4. Insert a screwdriver approximately 0.2 inch (5mm) under the edge of the resistor assembly to disengage it from the evaporator housing.
5. Remove the resistor assembly. To install:
   
6. Position the resistor assembly into the housing and snap it into place.
7. Attach the resistor connector.
8. Install the upper footwell panel.
9. Connect the negative battery cable.

Pull the 60amp fuse in the fuse box near the battery. You'll find it. That will shut off the motor. Remove the neg ground on the battery to shut off the rest of the car and save the battery,
It sounds like the ignition lock actuator. It goes from the ignition key switch to the Yellowish ignition switch box, under the dash on the column. It pushes the ignition switch to start and pulls it back to stop and lock. If you remove the 2 hex screws on the yellowish ignition switch and let it hang down, you will see a rod sticking out of the top. It's a slider. Push the slider toward the engine and it starts. Toward the drivers seat, and it shuts off the car. Check this out.
http://en.allexperts.com/q/Steering-Column-Repair-2047/2009/7/95-Thunderbird-1.htm

Nissan Pick-ups and Pathfinder 1989-1995
Starter - REMOVAL & INSTALLATION
(see Figures 1 and 2)

1. Disconnect the negative battery cable at the battery, then disconnect the positive battery cable at the starter.
   

Fig. 1: Starter removal on 4WD-6-cylinder engine



Fig. 2: Starter removal on 2WD-6-cylinder engine

1. On 4wd models with the 6-cylinder engine:
   1. Remove the front gravel shield.
   2. Detach the oil pressure switch connector.
   3. Drain the engine oil and remove the oil filter.

CAUTION The EPA warns that prolonged contact with used engine oil may cause a number of skin disorders, including cancer! You should make every effort to minimize your exposure to used engine oil. Protective gloves should be worn when changing the oil. Wash your hands and any other exposed skin areas as soon as possible after exposure to used engine oil. Soap and water, or waterless hand cleaner should be used.

1. On 2wd models with the 6-cylinder engine:
   1. Remove the front right wheel.
   2. Remove the front gravel shield.
   3. Remove the exhaust manifold heat insulator.
   4. Remove the exhaust manifold.
   5. Detach the oil pressure switch connector.
   
   
2. Unfasten the remaining electrical connections at the starter solenoid.
3. Remove the two nuts holding the starter to the bell housing, then pull the starter toward the front of the vehicle and out.

Hope this help (remember rated this).

Service VME - HVAC Blower Continues To Run with Key Off SERVICE VME Some 2003 Full-Size Pickup / Utility A/C blower motor continues to run even when the key is removed from the ignition. The root cause is an internal failure within Linear Power Module ( LPM ) or also known as the Blower Motor Control Processor. The service fix is to replace the LPM (P/N 52495874).
.

Models: (03 CHEVROLET FULL SIZE PICKUPS AND UTILITIES) and (03 GMC FULL SIZE PICKUPS AND UTILITIES) and (03 CADILLAC FULL SIZE UTILITIES)

your starter,solenoid or ignition is no good. but my first choice,i think your solenoid is shorted because when you hook up the battery,it cranks but does not start.that means your ignition switch is still working.

check blower motor for conituity you will have to rotate blower to find dead spots if good check the ground cable in the engine compartment about 10 inches to the right of the blower motor