Gauges not working

1. Locate the power wire that goes from the fuse panel to the passenger side headlight. Follow the wire from the headlight back to the fuse panel to determine its path.
2. Disconnect the battery to prevent any electrical accidents.
3. Cut the power wire as close to the fuse panel as possible.
4. Remove the old wire from the fuse panel and run a new wire in its place. You can use the same gauge wire as the original.
5. Connect the new wire to the fuse panel and the headlight. Make sure all connections are tight and secure.
6. Reconnect the battery and test the headlights.

must have a short somewhere in the wiring loom
follow wiring loom from engine bay to rear of car
if car has been smashed in a car accident in the rear wiring may be damaged in panel .

The problem may lie in the driver side panel where the wire chassis attaches to the fuse box. Had same problem with 2005 Pontiac Grand Am. I just moved it around and I got my gauges back. Only other option is going to be the speedometer sensor that sits where the older model cars had the cable speedometer mount. Getting to the sensor is going to be tough if it needs to be replaced. Pull out your manual and look for speedometer sensor or ctrl sensor panel fuse. It may also be under the hood on the left side towards the driver side door.

Hope this helps.

check the wire loom from the boot to under the back seats, I have herd over time the back seat can cut the wiring loom as the metal in the back seat can cut the wires. saw this on a classic cars site a few years ago. you will need to fix the wires back and reseal the wires with sealing tape. also make sure the wiring is back out of the way for the seat.

There is most probably some kind of damage to the harness going through from the interior or the car to the door, in the door jamb (driver side). You can cut the insulation and expose the wiring to inspect it-and it is going to take time and patience to find the break. Try wiggling the harness and individual wires in the harness as you actuate the window switch, it might speed the process.

Probably a break inside wiring loom of one/more of the three wires that eventually connect to the speed sensor on top of gearbox. The break I fixed in my 2003 Leon 1.6SX was in the loom under battery tray. My symptoms were no speedo working, and erratic fuel guage (particulary when under 1/2 full). I repaired one broken wire.
Jim Nichol
Seat leon 2003 problem with speedo not working and fuel gauge faulty is...

We can't help you,you know that

You need the vehicle and a
wiring diagram,to resolve those
issues

sudden failures are usually the blend door actuator. Unfortunately, you have to remove the dash to get the actuator out. It sits on top of the heater box in the second picture below. I have pasted the procedure below from autozone.com. Please see my tip at http://www.fixya.com/cars/r6235876-no_heat_fan_blowing_cold_air . If you get stuck, please get back to me, and thanks for using FixYa.





1992-98 Vehicles

1. Position the front wheels in the straight-ahead position.
2. Disconnect the negative battery cable.
3. Properly disarm the air bag system; see Chassis Electrical .
4. Remove the right and left mouldings from the instrument panel by pulling up and snapping out of the retainers.
5. Remove the right and left lower insulator panels from the instrument panel.
6. Remove the 5 bolts retaining the lower instrument panel steering column cover and remove the cover.
7. Remove the 2 bolts and reinforcement from under the steering column.
8. Pull up to unsnap the upper finish panel and remove the upper finish panel.
9. Remove the ignition lock cylinder; refer to Suspension & Steering .
10. Remove the tilt lever and the upper and lower steering column shrouds.
11. Disconnect the wiring from the steering column switches and the transmission range selector cable from the column.

Do not rotate the steering column shaft.

1. Place a cover on the front seat to protect it from damage.
2. Remove the 4 nuts retaining the steering column to the instrument panel and lower the column on the front seat.
3. Install the lock cylinder to make sure the steering column shaft does not turn.
4. Open the glove compartment door and depress the sides inward.
5. Lower the glove compartment assembly toward the floor.
6. Through the left side of the glove compartment opening, remove the 2 bolts retaining the instrument panel to the dash panel brace.
7. Remove the right and left cowl trim panels.
8. Disconnect the wires of the main wire loom from the engine compartment on both the right and left sides.
9. Disengage the rubber grommets from the dash panel, then feed the wire loom through the hole in the dash panel into the passenger compartment.
10. Disconnect the wires from the instrument panel at the right and left cowl sides.
11. Remove the 2 lower bolts retaining the instrument panel to the A-pillar.
12. Using the steering column and glove compartment openings, and by reaching under the instrument panel, detach all electrical connections, vacuum hoses, demister hose, heater-A/C vacuum lines and radio antenna.
13. Close the glove compartment door and support the instrument panel.
14. Remove the 5 screws retaining the top of the instrument panel to the cowl top and disconnect any remaining wires.
15. Remove the instrument panel from the vehicle.
16. If the instrument panel is being replaced, transfer all parts to the new panel.

To install:

1. Carefully position the instrument panel in the vehicle and install the 5 screws retaining the top of the instrument panel to the cowl top.
2. Open the glove compartment door and depress the sides inward to lower the glove compartment assembly toward the floor.
3. Attach the radio antenna and all electrical connections and vacuum lines.
4. Install the 2 lower bolts retaining the instrument panel to the A-pillar and tighten to 17-25 ft. lbs. (22-34 Nm).
5. Connect the instrument panel wires at the right and left cowl sides.
6. Feed the main wire loom through the hole in the dash panel into the engine compartment.
7. Secure the rubber grommets in the dash panel.
8. Connect the main wire loom wires on the right and left sides.
9. Install the right and left cowl trim panels.
10. Install the bolts retaining the instrument panel to the dash panel brace.
11. Close the glove compartment door.
12. Remove the lock cylinder from the steering column.
13. Raise the column into position and install the 4 retaining nuts. Tighten to 15-25 ft. lbs. (21-34 Nm).
14. Connect the transmission range selector cable to the steering column and the wiring to the steering column switches.
15. Install the steering column shrouds and the tilt lever.
16. Install the ignition lock cylinder.
17. Install the upper finish panel.
18. Install the reinforcement under the steering column and tighten the bolts to 7-10 ft. lbs. (9-14 Nm).
19. Install the lower instrument panel steering column cover and tighten the bolts to 7-10 ft. lbs. (9-14 Nm).
20. Install the lower insulator panels and the instrument panel mouldings.
21. Connect the negative battery cable.
22. Enable the air bag system.
23. Check operation of all instruments, lights, controls and the A/C-heater system.
24. Check the air bag indicator operation.

ok,make sure you tried all the windows on all the door switches,,,,what i think you may find is broken wires,sounds like it,,,,,when you open the drviers side door,look in the crack where the body of the car meets the door and you will see a black wire harness,you are going to carefully cut open that harness loom with a sharp razor knife,Be careful not to cut yourself and not to cut into the wires inside the loom,,,once you got it cut open you will need to inspect the wires inside,,they get dry and brittle from all the opening and closing of the door and the wires chaff open and short and some even break apart,,ive seen 6 broken wires in 1 ion door jam,,,,all the wires for all the windos run thru here because of the master switch being in that door...,,if oyu do find broken ones go get the pinkish red **** connector,make sure they are heatshrink connectors so they are weather proof,fix all the wires and heat the connector up to shrink it tight then electrical tape over each connector seperately,then put loom back on and electrical tape the complete loom from door to body,,,,,and all should work...ive never seen a bad windows switch knock out all 4 windows so i doubt its that,,,but good luck,hopefully this helps you

The best, and in fact the only recommended solution is to use a plug-in dedicated wiring kit for this car, it plugs into a grey connector on the chassis on the rear of the left hand side. this is the connector that the cars rear light loom is plugged into and the towbar loom piggybacks onto this using the same watertight sealed connectors. There is a trailer indicator warning light already built into the dash display so no need for any other monitoring of the trailer functions. This wiring kit should cost you around £40-£50 and will only take around 10mins to fit. The other alternative is to solder the towbar wires to the cars loom, but this is time consuming and may invalidate the vehicles warranty.