Looking for a 2004 ford focus wiring diagram for the starter circuit

This vehicle does not have a distributor , has electronic ignition system . Has coil pack , rectangular box with four plug wires plugged into it . What color wires were they , at the coil pack ? Are these wires going to the connector at the coil pack ? Should have battery + voltage and ground and wires going to the engine computer for control . What did the wires under the dash go to ? What color ? Looking at wiring diagrams to see what all is involved in the starter electrical circuit an the testing should be done , not trying to guess your way through a repair .

Trip wire ????? The starter circuit is computer controlled . The ignition switch to start send's B+ voltage to the transmission range switch , if in park or neutral the B+ voltage goes to the starter relay coil side an on to the PCM - engine computer .If not problems with the anti-theft system the PCM supply's a ground which will energize the relay an close the contacts inside sending B+ voltage to the S terminal on the starter solenoid engaging an spinning the engine over . Do you know what a wiring diagram is ? How to use one to locate testing point's in a electrical circuit ? Do you know what a relay is an how it works ? Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model an engine size . Under system click on engine ,then under subsystem click on starting .Then click the search button ,then the blue link . Do you have an know how to use a DVOM - digital volt ohm meter .
VEHICLE RELAYS Operation Diagnosis

Ignition starter switch ???? It's Just a ignition switch ! If a problem with PATS - anti-theft system , the pcm will not supply a ground to the control side of the starter relay . Starter relay located in the central junction box , inside the vehicle fuse/relay box. Do you know what a relay is an how it works ? How to test electrical circuit's with a DMM - digital multi-meter ? Do you know what a wiring diagram is ? How to use one for testing electrical circuit's .
Free wiring diagrams here http://www.bbbind.com/free_tsb.html
Enter the vehicle info. year , make , model an engine size . Under system click on engine ,then under subsystem click on starting . Click the search button then the blue link .Do you have a manual or automatic transmission ? Also won't start if has a bad park neutral safety switch . Try putting into neutral an see if it will start then .
Testing for B+ voltage at pins # 30 & 85 . If you pull the relay an look at the bottom you will see four set's of numbers 30 & 87 ,30 is B+ voltage an 30 goes to the S terminal on the starter solenoid . 85 & 86 is control side of the relay ,one should have B+ voltage an the other is connected to the PCM . When the PCM supply's a ground the relay is energized closing the contacts inside sending battery voltage to the starter solenoid .
Are you confused yet ? Looking at the wiring will show what i just stated . Video's on youtube on testing relay's an their circuit's . Good luck .

diagram of 2010 Ford Focus relay panel Google Search

Passenger Compartment Of 2010 Ford Focus Fuse Box Diagram Circuit Wiring...

http://www.autofuseboxdiagram.com/253-2010-ford-focus-fuse-box-diagram

signal circuit for what ? What year focus ? How To Read An Automotive Block Wiring Diagram You first need to learn to read wiring diagrams , Then learn basic electrical trouble shooting !

Do you know how your starting system works ? Do you know about the starter relay ? All power comes to an through the starter relay . The park neutral safety switch is on the transmission. VEHICLE RELAYS Testing from the relay base If you have a anti-theft system problem the engine computer - PCM will not let the starter engage . Go to www.bbbind.com for a free wiring diagram of the starter circuit on your vehicle .

Good luck!!!
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DTC P0411 - Secondary Air Injection System: Incorrect flow detected

Then check all the vacuum lines against the vacuum map on the VECI label under the hood. It's common for the original plastic lines to get brittle & crack, or they can be melted by an exhaust leak from the crossover tube on V8s, but if you have an I6, it doesn't have that tube.

Check IAC and IAC circuit. Check Secondary Air Injection pump, valve, circuit and hoses for leaks, blockages.

Here can find some diagrams: supermotors.net/registry/media/589993

Hope helps.

The ECU doesn't have anything to do with lights, windows or blower on your vehicle. Fuse or burned ground wire in those circuits if far more likely. Get a wiring diagram and find the common /fuseswires to those circuits.

Fuse No 64 on back of fuse box inside cabin behind glove compartment undo two bolt and turn fuse board around pull the wires gently apart to see fuse 20 amp