03 Crown Vic wiper works on high only nothing on any other position stops were they are when taken off high

Use vinegar to unfreeze

1. Access the interval governor located above the warning chime
under the driver side of the dash and disconnect it.

2. Install a jumper wire between the Dark Green (DG) wire and the Yellow/Red (Y/R) wire.

3. Install a 2nd jumper wire between the Dark Blue/Orange (DB/O) wire and a Black (BK) wire. Either BK wire of the module should work, both are dedicated chassis grounds for the module.

4. Turn the ignition switch to the Run position and verify that the wipers are running on low speed.

5. Disconnect the jumper wires.

6. Connect an ohmmeter between the Dark Blue/White (DB/W) wire and the Brown/White (BR/W) wire.
With the wiper switch in the OFF position, resistance should indicate about 47,500 ohms.

7. Move the wiper switch to the low speed position, resistance should change to indicate about 4000 ohms.

8. Move the switch to the high speed position, resistance should change to indicate less than 100 ohms.

9. If the wiper motor runs and the switch resistance checks as stated, replace the interval governor.

I suggest check position 2, 30A for Wiper Control Module, Windshield Wiper Motor...



Keep in mind that this and other important information could find in Ford Crown Victoria owners manual.

Hope this helps; just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Have a nice day and thanks for using FixYa.

Jose.

DISCONNECT WIPER SWITCH IF WIPERS STOP REPLACE SWITCH.IF WIPERS DONT STOP. YOU HAVE A DEFECTIVE LIMIT SWITCH IN MOTOR.

Hello, this is a very common problem for Chevrolet. Your wiper motor control module is bad. It's mounted directly onto the wiper motor. On some models you can replace the "pulse board" inside the control module. If not you need to replace the entire wiper motor control module. It depends on your level of skill and parts availability.

i believe it is part of the wiper motor which should be located in the driver's side rear corner of the engine bay, on the firewall. Many 03 and up Fords use a "Smart motor" for the wipers which has the motor and a module in one piece.

here is a diagram

Odds are your wiper control is faulty and you may need to replace it which involves removing 3 screws that secure the assembly to the steering column.

I replaced the same part on a 1994 Crown Vic. There are a few bolts which go through rubber mounts on the firewall and that is how the wiper motor fits against the firewall. There is a clip on the wiper drive that must be pressed and slid off the wiper shaft. The hardest part was getting clearence between the engine and wiper motor. If I remember there was a way to turn the wiper case to clear the engine. I have asked myself why this was engineered like this? There is nothing important in the way that 3/4" of clearance could have been given for removal.

Locations In Case this Picture Doen not SHOW UP FOR YA --
WIPER Fuse ok Lookin at the box with the Round Circle In TOP RIGHT Corner Wiper is Number 2 Bottom from That Circle would be 2nd one from right Suppose to Be a 30 amp fuse Hopin this Helps Ya If so Please RATE Me AS High as You feel I Dererve Thank You and Good Luck with the CROWN VIC
Notes

It's probably going to be the switch arm itself.

The part is a bit pricey, but it does come with the wiring diagram to place the new one in there.

The switch is the whole thing, turn signal, wipers, etc, and the arm.