I have a 2009 Ford Focus SES and my check engine light came on so I took it in to get the computer read and we got the same code 7 times here is the code PO600. Does anyone know how i can fix it?

Asked by Oct 03, 2016 at 05:53 PM about the 2009 Ford Focus SES

Question type: Maintenance & Repair

8 Answers

16,105

http://repairpal.com/OBD-II-Code-P0600

16,105

Copy & paste the URL above to new browser window.

16,105

Possible causes - - Faulty Engine control Module (ECM) - Engine control Module(ECM) harness is open or shorted - Engine control Module (ECM) cicuit poor electricl connection - Low battery voltage

16,105

Look for all engine block to frame grounds and computer ground and all fuses under dash & hood. Make sure all electrical connections are good & tight.

16,105

Explanation of OBD code P0600 Your vehicle's ECM or power train control module (PCM) has lost its control over one or more actuator modules. Most vehicles have as many as 18 actuators that the primary ECM controls. It does so through a controller area network (Can Bus Automotive Network), which is a series of wiring harnesses from the ECM to the controllers. The controllers operated by the ECM, known as modules, control the majority of the functions of your vehicle. The code P0600 was set when the ECM recognized a loss of communication and control over one or more of these modules for eight consecutive starts.

16,105

This is a list of the primary control modules operated by the ECM: Fuel injection system, Ignition system, Variable camshaft timing, Turbo charger, Emission systems, Air conditioning, Transmission shift points, Body ride control, ABS brakes, Cruise control, Anti-theft, Sunroof and seat position, Power windows, Traction control systems, Proximity alerts. These are just a few, not to mention all the available computer controlled options available today.

16,105

Experience has proven that a poor connection or failed ECM driver is the root cause of this code. For the most part, the ECM acts as a ground to control these components and modules as opposed to supplying power to them. A loose or corroded connector is more likely than a frayed or broken wire between both devices. Poor grounds are another plausible cause. The ECM, as well as the activator module, need a good ground to operate. The wiring harness or Can Bus may be defective and have a short to ground or an open wire.

16,105

If no shorts or ground problems are found and all fuses and connections are good. The best advice concerning the diagnosis and repair of this particular code is to take the vehicle to a professional technician that has a Autohex or Tech II diagnostic computer. If you unplug the ECM or the associated wiring and then probe the terminals, your bank account could suffer extreme consequences. Most vehicles need to have a memory saver installed before disconnecting the battery to retain the ECM's memory. Should the ECM lose its memory due to lack of power, the vehicle will not start until reprogrammed at the dealer. Probing the wiring must be done systematically using the wiring diagram and pin values. If you probe the wrong terminal, the ECM and/or its associated module will be destroyed. A competent technician will program your vehicle's information into his Autohex or similar diagnostic computer in preparation to diagnose the P0600 code. He will then start the vehicle and monitor all the systems in real time. The tool shows the pin values and modules in operation and indicates any abnormalities. It's an essential tool for diagnosing wiring or computer related problems without running the risk of damaging any components. If you're fortunate, symptoms or an additional code following code P0600 will steer you to the system in question experiencing the communication failure. Upon identifying the system through symptoms or an additional code, check the connections for discrepancies such as loose or corroded terminals. A service manual with the wiring diagrams, pin values, locations of connectors, precautions and procedures are imperative.

Your Answer

Add photo

Related Questions

  • Check engine light 3 answers

    My check engine light came on before and I took it to an ford dealer to get it fix ever since they fix it it still be coming on but then it go off by it self mostly I notice it when I put gas in it...

    2012 Ford Focus SE

    -

    Maintenance & Repair

  • Ford Focus Stalling 1 answer

    This is the third time I've had this type of problem with my car. When it's going at a constant speed like on the freeway it's fine, but when I slow down and I take my foot of the gas like I'm comi...

    2005 Ford Focus ZX4 S

    -

    Maintenance & Repair

  • 2001 Focus error code 3rd cylinder miss fire. changed plugs and wires and still not fixed. whats next? 2 answers

    2001 Focus error code 3rd cylinder miss fire. changed plugs and wires and still not fixed. whats next?

    2001 Ford Focus LX

    -

    Maintenance & Repair

  • 2001 Ford Focus ZX3 hard start and stall problem. 23 answers

    I seem to be coming across a hard start and stalling problem with my Focus. It is difficult to start, meaning it just won't grab or turn over when I go to start it. When it does, it has a hard time st...

    2001 Ford Focus ZX3

    -

    Maintenance & Repair

  • 15 codes showing up all at once??? 9 answers

    Wife driving home from work and the transaxle light started blinking. Read the codes p1131, p0161, p0155, p0141, p0135, p1460, p1451, p1760, p0763, p0760, p0753, p0750, p0743, p0740, p1747. My ques...

    2002 Ford Taurus SES

    -

    Maintenance & Repair

Focus

Looking for a Used Focus in your area?

CarGurus has 57,040 nationwide Focus listings starting at $1,095.

ZIP:

Search Ford Focus Questions

Ford Focus Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,340
#2 dandyoun
dandyoun
Reputation 1,060
#3 Su'ad Barakat
Su'ad Barakat
Reputation 910
View All

Related Models For Sale

Used Ford Fusion
1,106 Great Deals out of 83,160 listings starting at $998
Used Honda Civic
634 Great Deals out of 88,620 listings starting at $995
Used Ford Fiesta
152 Great Deals out of 16,939 listings starting at $3,095
Used Ford Mustang
461 Great Deals out of 45,641 listings starting at $1,999
Used Toyota Corolla
769 Great Deals out of 73,085 listings starting at $1,260
Used Mazda MAZDA3
227 Great Deals out of 31,657 listings starting at $1,495
Used Honda Accord
803 Great Deals out of 84,448 listings starting at $988
Used Hyundai Elantra
564 Great Deals out of 52,031 listings starting at $1,499
Used Ford Escape
1,400 Great Deals out of 93,890 listings starting at $900
Used Toyota Camry
1,004 Great Deals out of 90,532 listings starting at $650
Used Volkswagen GTI
72 Great Deals out of 6,873 listings starting at $1,995
Used Nissan Altima
1,008 Great Deals out of 81,095 listings starting at $1,200
Used Volkswagen Jetta
435 Great Deals out of 40,423 listings starting at $950

Used Cars For Sale

2017 Ford Focus For Sale
27,209 listings starting at $9,299
2016 Ford Focus For Sale
118 Great Deals out of 6,346 listings starting at $8,989
2015 Ford Focus For Sale
90 Great Deals out of 4,903 listings starting at $6,299
2014 Ford Focus For Sale
142 Great Deals out of 6,705 listings starting at $5,500
2013 Ford Focus For Sale
54 Great Deals out of 2,749 listings starting at $4,990

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.