Ford

Have Ford questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

How do i test the bcm on my 2012 f250. 2012 f250 6.7l left…

How do i test...

How do i test the bcm on my 2012 f250

Mechanic's Assistant: Okay, I'll connect you to the mechanic to go over that information regarding your Ford F250. Before I do, is there anything else you want him to know?

2012 f250 6.7l left rear tail light not working back up light works but no rear turn signal or left brake light

Show More
Show Less
Ask Your Own Ford Question
Answered in 7 minutes by:
3/11/2018
EricFromCT
EricFromCT, Ford Technician
Category: Ford
Satisfied Customers: 4,491
Experience: 20 years dealership exp., ASE A1-A9 L1 L2, Ford Lincoln Mercury Senior Master, Diesel Certified
Verified

Hi. Welcome to chat! My name is ***** ***** I am currently a factory dealer auto mechanic. I will attempt to assist you with your concern today.

Ask Your Own Ford Question

Have you checked if you have power at the connector for the stop/turn bulb on the gray/brown wire when stepping on the brake pedal?

Ask Your Own Ford Question
Customer reply replied 1 month ago
let me clear up the issue. The left brake / turn signal light does not work, the back up light works, the front left turn signal works.
My factory installed tow hitch has no power to the left side.
Customer reply replied 1 month ago
I have checked for power on the connector below the spare tire were it splits in to left and right and I have no power to the left side

Ok. Make sure fuse 14 in the sjb is good and has power on both legs. Really the next thing to do after that is go right to the output on the sjb for the LR brake/turn lamp circuit and see if power is being outputted from the sjb. You could still have a wiring issue from the sjb to that rear connector.

Ask Your Own Ford Question
Customer reply replied 1 month ago
please what is the sjb

Sorry the BCM. Same thing.

Ask Your Own Ford Question
Customer reply replied 1 month ago
fuse 14 is good. how many volts should I have coming out of fuse 14 socket?

Battery voltage.

Ask Your Own Ford Question
Customer reply replied 1 month ago
I'm getting 12v dc from the socket

CLICK HERE for bcm connector for circuit in question. Pin 12 grey/brown wire when turn signal is on or brake. Also sometimes the bcm as internal circuit protection. Sometimes clearing the codes in the bcm or disconnecting the battery for a few minutes can reset the bcm internal protection if that has tripped.

Ask Your Own Ford Question

12 volts is fine. make sure that is coming out of bcm on connector above.

Ask Your Own Ford Question
Customer reply replied 1 month ago
I want to understand leave the connector connected and test the wire to make sure I have 12v coming out of while the brake is being pushed?
Customer reply replied 1 month ago
there were two wires that were gray with a tan stripes I had the brake held and neither wire was giving me 12v
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 51,099
Experience: 16 years experience
Verified

Welcome, I'm Chris (aka-Moose).

  • THE TIME I AM ONLINE, 7 days a week normally online around midday and then late evening until early morning.
  • PHONE CALLS are automatically offered by the website normally after my first reply. I complete calls where I feel it is a benefit.
  • UPLOADED LINKS I SEND, if I upload dropbox links, they will open on a home PC, often they fail on a work PC, on a phone use the box on the top right of your phone screen for direct download.

The other tech opted out. Did you get all the tests done to isolate where the circuit is bad at?

Ask Your Own Ford Question
Customer reply replied 1 month ago
Not yet
Customer reply replied 1 month ago
I checked the bcm at fuse 14 and have 12v on both sides. I have checked the 2 wires coming out of the back of the connector on the bcm the gray with the tan stripe no power. I am just trying to make sure, if I need to take it to the shop I can. Or if I can fix it my self.
Customer reply replied 1 month ago
I just unhooked the battery and left them unhooked for an hour and still no result.
Customer reply replied 1 month ago
I also have no power on the connector above the spare tire to the left brake/turn light. I have been doing some research and this seems to be a very common issue with the bcm.

Brakes applied at BCM connector 2280D pin 12 gray/brown wire https://www.dropbox.com/s/7bwnq8svi6xkha5/gybn.png?dl=0. If there is no power then you have a faulty BCM. This module requires diagnostic tool for programming during the swap.

You now will see a rating scale 1=bad to-5=excellent because I have posted a full or partial answer instead of an info request. When you rate I get a portion of the deposit you made, no rating means you still paid, but I earn nothing. My goal is understanding your question, and addressing it in full detail. In return, receiving a 5-star rating. Rating does not close the post or stop the conversation. Please keep in contact and reply as much as needed. Thanks, Chris

Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 51,099
Experience: 16 years experience
Verified
Chris (aka- Moose) and 87 other Ford Specialists are ready to help you
Ask your own question now
Was this answer helpful?
Ask Chris (aka- Moose) Your Own Question
Chris (aka- Moose)
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 51,099
51,099 Satisfied Customers
Experience: 16 years experience

Chris (aka- Moose) is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on.

Rich DUSA

Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me.

MollyUSA

I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service.

Jason V.Kirkland, WA

I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there.

BRNew Jersey

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

< Previous | Next >

Meet the Experts:

Ron

Ron

ASE Certified Technician

24,610 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

51,099 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Richard

Richard

ASE Certified Technician

1,524 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

Mike V.

Mike V.

Auto Service Technician

1,455 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

< Previous | Next >

Related Ford Questions
I have a Mustang that was in storage for 2 months. The brake
I have a Mustang that was in storage for 2 months. The brake pedal will not fully lower to the floor and the car will not start. Would this be a dead battery? … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,610 satisfied customers
2011 ford e-250 van / front brake pad wear verses rear brake
2011 ford e-250 van / front brake pad wear verses rear brake pad wear ? … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Brake warning light comes on intermittently. Fluid is good.
check fluid and jiggled a a hose coming out of the master cycinder … read more
roy
roy
Associate Degree
3 satisfied customers
Just replaced the brake pads and now check brake system
just replaced the brake pads and now check brake system warning light is on along with abs … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
It won't start, the check brake system light came on. The
It won't start, the check brake system light came on. The brake is hard to press. It's a 2015 Ford explorer limited … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
I believe it may be an issue with the Brake Shift Interlock
I believe it may be an issue with the Brake Shift Interlock Relay but dont know where to find it.Problem: Gear shift lever will not come out of Park position without using the bypass switch on top of … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
Cant find the brake light switch location. Brake lights stay
cant find the brake light switch location JA: Okay, I'll connect you to the mechanic to help find that for your Pontiac. Before I do, is there anything else you want him to know? Customer: brake light… read more
Dan
Dan
Dealership Technician
Associate Degree
2,004 satisfied customers
Parking brake will not go off. f-150. 2008. Brakes replaced.
brakes replaced. yes. i have not checked the fluid. … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
51,099 satisfied customers
Replaced the brake pads and rotor on drivers side. bled the
replaced the brake pads and rotor on drivers side. bled the brake lines and everything has been good until yesterday. I was backing up and the pedal got real tight and the truck didn't want to stop. A… read more
Steve W
Steve W
Line Technician
Vocational, Technical or Trade Scho
1,968 satisfied customers
HOW DO THE PARKING BRAKE CABLE COME OFF THE BRAKE HANDLE. TO
HOW DO THE PARKING BRAKE CABLE COME OFF THE BRAKE HANDLE. TO BE REPLACE. … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,610 satisfied customers
The rear turn signals and brake lights don't work but the
The rear turn signals and brake lights don't work but the third brake light on the trunk works. 2011 Ford Fusion. … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
No speedometer, no turn signals and the brake light is
No speedometer , no turn signals and the brake light is flashing … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
466 satisfied customers
1999 f350 7.3 diesel hedraboost brakes. Brakes going to
1999 f350 7.3 diesel hedraboost brakes. Brakes going to floor. Put new master cylinder, replaced rear pads blead air from system over and over and over ect. Repaired slides. PS works good. No leaks. C… read more
Diesel Doc
Diesel Doc
Diesel Technician/Shop Foreman
High School or GED
2,495 satisfied customers
Trying to replace rear brakes on 2011 Ranger. Done brake
Trying to replace rear brakes on 2011 Ranger. Done brake jobs, drum and disc, on all of my vehicles for 45 years. Having quite the difficult time with these rear disc brakes. I'm on re-assembly of the… read more
Steve W
Steve W
Line Technician
Vocational, Technical or Trade Scho
1,968 satisfied customers
2008 f350 diesel. No brake pedal whatsoever. New brakes all
2008 f350 diesel. No brake pedal whatsoever. New brakes all the way around. New master cyl. New hcu. New hydro boost. Still pedal goes to floor. Any ideas ?… read more
roy
roy
Associate Degree
3 satisfied customers
2010 ford fusion. No brakes what so ever. Changed all brake
2010 ford fusion. No brakes what so ever. Changed all brake pads 3 different master cylinders and the mechanical part of the abs module. Seems like there is no pressure at the master when I crack a li… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
The brake pedal went to the floor but the brake reservoir is
the brake pedal went to the floor but the brake reservoir is still full … read more
Mike V.
Mike V.
Auto Service Technician
High School or GED
1,455 satisfied customers
My brake lights are not working. Does the brake fluid have
Does the brake fluid have anything with the lights not working? … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,280 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x