20 Most Recent 2004 Ford Crown Victoria - Page 8 Questions & Answers

Should be near the floor and the brake pedal.

0034 code is a turbo charger bypass valve control circuit low it sounds like you have a computer problem did this happen all at once could it have been hit by lighting or may your ground leads are bad

Probably the "blend door actuator" inside the dash..It opens/closes a flap to allow air flow across the heater core or the a/c evaporator.Its basically an electric servo and position is controlled by the knob.

Under the dash by your right knee, you will see the black plug dealers use to plug in a scan tool. Just behind the plug is a black box, about 4inches wide by 6 inches long. It sits on top of a steel bracket. There are three 8mm screws holding it on to the steel bracket. Once you take those off, there is a plastic clip towards the back. Release the clip and pull the box out and down. There will be three wire harness plugs. Unplug those, and you're have your module.You can get a replacement module here: http://www.modulerepairpro.com/Repair-Service-To-Your-Module-MRP-LCM-0020.htm

The new module must be programmed withg a special tool loaded with factory software so you can't do this at home.

check for spark. check for fuel delivery. check the error codes. check the fuses.

the key doesn't work in the door locks?If that's the case than your only alternative is to call you local towing company or locksmith and have then perform a lockout service. I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

DTC P7104 isn't a code listed. Confirm us.

Check in the big fuse box under the bonnet for a corroded wire ,sorry iam a europen mechanic and never seen one but this is where i would look first in this box and check for a power supply and any link bar connections if fitted

In the sides of the head

try charging the battery before you go any further sounds likes its flat