Ford Focus - BCM Water Ingress - Non Start, No Cranking, Flat Battery - B10FF
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- Опубліковано 1 жов 2024
- An interesting case study of a Ford Focus that came in with a non start condition. No cranking and many many stored fault codes. Come with me on the diagnostic path and ultimately the fix.
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The fault was traced to water ingress into the Body Control Module (BCM) but where did the water come from in the first place?
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eMail - sydiagnostics2019@gmail.com
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#bcm #wateringress #howtodiagnose
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As promised in the video here is the link to the video mentioned.
• 02. FORD FDRS TUTORIA...
Thanks for watching!!
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Please watch: "Ford Focus Mk4 - Malfunction Warnings & Can Bus Errors"
• Ford Focus Mk4 - Malfu...
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Good work Steve. Nice simple diagnostic process as always. 👍🏻
lot of work mate. your bloody good. great job.
I have come across this fault once and really expected a run of them but fortunately haven't seen one since. Nicely produced video, more to come i hope.
Hello thanks for the great video, I have the same problem, I would like to ask you where you bought the parts, the C6 connector including the cables and the connector for the pump, I can't get the lg anywhere from us and thank you
Great video! As a tech i have a customer in the shop with the exact problem but am having trouble programming the BCM with FJDS. I couldn't find your programming and initialization video, can you provide a link?
I didnt show it as I use dealer tools and at the time of making the video I had been reported for showing dealer / copyright material
Nice video! What was the TSB # that had to do with the washer pump leak?
I would aleo like to know, maybe somebody can share the PDF also. I have the same issue. Right now the car still started but it's badly coroded...
@@alex.cristescu Hi Alex. Hope you managed to fix your car.
TSB number was 16-2086. TSB 16-2086 - Malfunction Indicator Lamp (MIL) illuminated Several symptoms due to water ingress into Body Contro Module (BCM) electrical connector C6
You can find it here: drive.google.com/drive/folders/1nO5ahwQbRZxEIMtTr7Fxvv6J79P5BrLj?usp=share_link
@@xandrabratu thanks, fixed it a while ago, was lucky nothing needed replaced, just cleaned up corrosion and all is working fine 2 years later.
Thanks for the reply SY, I’ve watched that video (part 1 what happened to part2). If it is water tracking up the wire from the water bottle to the BCM, what would you normally change. Could it be possible that water is getting into the connector from the front tyre throwing up water, if for instance you went through a deep puddle.
I think I posted a few pics on my Facebook page. The washer pump leaks internally and the water tracks up the harness upto the bcm.
Nice that they can supply the necessary parts without having to replace whole looks Tec.
I'm grateful to you for this video. My daughter's 2012 Focus started showing some unusual electrical behaviors and I was able to identify the issue with your video. Water ingress at the exact same plug on the BCM. You just saved me an expensive visit to the dealer.
Glad it helped
2017 focus here and about to check mine out. Very similar issues but mine have been more intermittent. Bizarre electrical issues and no fault codes. Car is 100% OEM with only 15,000 miles on it. I’m original owner.
👍
great video Steve, does the water from washer pump just affect the diesel or all the focus group cheers sandy
Seems to be the focus 2010>2015
Skoda Yoda what diagnostic software are you using Steve?
@@ivorbiggun4919 I'm using Ford IDS and ETIS for the information
Hi, sorry, I don't speak English. I have a same issue with a Escape Titanium 2016 after conect a wrong RCM. Do you think te BCM is blown now? Thanks alot
Can you please help me out I have a Ford focus 2015 it’s intermittent starts and then doesn’t start it seems like when it’s hot whether it doesn’t start or when I drive it for errands it won’t start or crank but all the lights go on and after about 30 minutes I can drive it but when I stop again same thing happens
Thanks again SY for taking the time to get back to me. Will be watching all your UA-cam videos from now on. Very informative and interesting. Bye the way were are you based.
Thanks for the comments. I'm in Lincolnshire.
Don't suppose you have the part number for the connect to the BCM ? Have the exact same problem
What software are you using to see all the codes please? Having an issue with my rear wiper. Changed the fuse, new motor but been told it could be a port on the BCM
In this video its Ford IDS, but I often use Forscan which is a free program. I have a series of Forscan videos and one on how to get it, I also have the Forscan cables in my amazon store
Nice one Steve, good work as usual 👍
Good work steve, excellent video.
I had a variant of this happen - in my S-Max, but I fixed the BCM myself. So if you see similar issues, maybe try this out.
One morning my S-Max was almost "dead" - turning egnition key on, the "blinkers" in the instrument cluster was flashing fast, nothing else. The battery was almost drained, so I recharged it. After that the instrument cluster behaved normal (lights etc.), but when turning the ignition key nothing happens (starter did not turn). I noticed that the interior lights did not work and neither did the power windows. This pointed me in the direction of the BCM (located below the glove box). Common BCM problems cause "no start", "electrical systems not behaving normal", "immobilizer not working correct", "battery drain" as systems are not shut down properly after driving. I feared that I had to replace the BCM (it is expensive) - but got the thought that it could be a soldering problem (lose soldering or similar due to maybe vibrations) as is often the case with faulty instrument clusters in Fords from these years. My S-Max is a 2008 petrol. I took the BCM out and opened it. There are two print plates inside. What I did was I soldered all the connections (two rows of a lot of "pins") between the two print plates. They are not soldered from the factory - just "pushed" together. I assembled it again and installed the BCM. Everything works again. Hope it can help someone out there...
Sounds very similar to my 2017 focus
Hi mate . Iv recently bought a focus 1.6 (125hp) . Power shift. Bought it as it had no communication with the TCU . And selected gear on dash not showing. Investigating into it checking my can wires, earth's and powers I found that my power from relay 16 ( ignition was behaving like an earth ) . Also found that fuse 38 for the engine management was also behaving like an earth . When I disconnect the harness at the Junction box / fuse box under the bonnet I still have an earth at fuse 38. Could I be right kn saying the bcm had internally shorted causing an earth being sent up the power wire to relay 16?
i watch your videos and soon realise you need to work at my local ford garage. mine been in 7 times for same issue 2020 ford focus 1 litre ecoboost vibrating engine and lack of power they say no fault codes so nothing wrong. its a motobility car and even motobility have lost interest so i am just waiting on my new car to arrive cant bloody wait lol your really worth your wait in gold top bloke
Thanks for the comments
Super educational video 👌. Which video editor do you use?
Nicely done sir!
i'm hit your golden bell..... we are mates bro......i'm a specialist in automatic transmission and A-z technician.....God Bless.....
thanks
Ime having issues with sync radio saying battery system saver off and switching off the radio. Ford has no idea whats going on at all with it ive spent nearly 900 pounds now
After how long?
What is the state of charge of the battery? Would need to view that value in thd BCM
Great vid Steve 👍
You need a new battery that's all
Tackling a strange electrical prob with our 2001 Focus ZTS 71k today. It shut off while driving having a bad electrical burn smell inside almost smells like fertilizer. No crank no start to begin this adventure....I have FORscan that may help diagnose beginnings. It's half temp of the sun here in TX right now.
Great video and documentary!
Thanks Cody, keep up the good work
Hello Sir!
I need your help from Sweden!
I have a I pulled out my stereo and then put it inside but now everything works on the Dashboard but nothing happen no crancs no start nothing battery is ok, can you help me?
Hi mate . Iv recently bought a focus 1.6 (125hp) . Power shift. Bought it as it had no communication with the TCU . And selected gear on dash not showing. Investigating into it checking my can wires, earth's and powers I found that my power from relay 16 ( ignition was behaving like an earth ) . Also found that fuse 38 for the engine management was also behaving like an earth . When I disconnect the harness at the Junction box / fuse box under the bonnet I still have an earth at fuse 38. Could I be right kn saying the bcm had internally shorted causing an earth being sent up the power wire to relay 16?
Also iv removed the plugs from.the bcm and can't see anything at fault . I'm assuming it's possible the damage or ingress if there is any is internal on the bcm ?
Would need more vehicle details to check. But bcm are fairly common for water ingress on certain age ranges
If the Transmission control Module is implicated, that is part of a huge long extended warranty fiasco. We have replaced 3 times and now still having problems. They say it is probably the BCM this time... 🙄Now I'm going to ask them if they've looked into the water ingress issue!
Update guys. Fitted a tcm programmed. When I power up fuse 38 it wakes the ecu and tcm up and vehicle starts and drives . Issue is why I'm getting an earth at fuse and not a live . I am suspecting water ingress into bcm
Hi :). Thank you very much for these instructions. My car is grounded 1000km away from home and it will be a fortune to transport it on the trailer. I am assuming that my car has exactly the same problem. I don't have a possibility to code new bcm myself. Do you think I could drive my car home after starting it with the bypass trick or not possible/dangerous in your opinion? I would really appreciate your help! Thank you :)
Maybe you could also tell me what type of relay for the ignotion...just in case :) ? I really need my car back. Thank you :)
@@madeinjungle1977 the bcm is part of the immobiliser system, so new one can't be byassed
Thank you for your reply :). I will try to dry/fix the connector and original bcm...I will drill holes in bcm's body and bypss the connector with wires where necessary. If the module is unfixable then I would connect 30 & 87 to start the engine. My car has manual gearbox so maybe it will be possible to drive after starting the car with your relay bypass trick? Replacing bcm is not an option for me as I can not code it there...
Hello' been looking at ECU issues on a 2014 transit connect similar issues so im looking at all possibilties first before ''going in'' i suspect water ingress in the main ECU , faults are going into limp mode then cutting out shortly after as in your vid' all dash lights come on no engine turnover on the key would not connect to diagnostic laptop , so looking at your vid' it could be that , but also ECU is located in the nearside wing as you know your thoughts on water ingress there ? im retired commercial fitter fords were allways a balls ache on electrics before all the solid state kit on them now Tia ........................
Hello Steve... Can I call you in VIBER?... I have big problem maybe you can help me... :(
Could you please send me the TSB on this as my ford focus has the same corrosion and pin damage from washer fluid leaking into BCM. Thank you in advance.
Do you have a part number for the BCM repair connector?
they cant be got through ford and have to be bought through bosch tooling and equipment for ford dealers. They are £147 plus tax plus shipping and currently on a 6 month back order (march 2021)
I cannot believe how many Ford cars are suffering with water ingress and especially a capilliary action from washer pump to BCM!
Got exactly same problem with my focus. Will check bcm tomorrow if wires looks like that.
Any idea what's cost of new bcm from ford please ?
Approx £400
my focus st is in the dealer for this issue, they cant even get the new BCM due to chip shortage and no estimated date for shipment.. so my cars just stuck now
@@suicidaltiger well I've looked at my BCM and doesn't look like it have any water damage, same with screen wash plug etc.... So I have no idea what can it be 😢🤦♂️
Nice..
GOOD ONE SIR !
Hi, Great video, just wondering if this BCM could be the cause of multiple electrical problems with my 2012 focus 1.6 tdci, the latest of which is my aircon not working properly, in the past I have had problems with the alarm system going off all times day and night, warning messages saying bonnet open when it is not and stop start saying it's off when it was never supposed to be to be on anyway, any advice greatly appreciated, THANKS
Certainly wouldn't hurt to look. But I've not seen this fault on anything older than 2014. It's pretty common on mondeo too with a different bcm
Great video! 👍
taking mine out now, got all the lever clips out just have to get the red and yellow (feed wires?) out of the center of the bcm. REALLY would have loved to see how this is done, but i guess ill figure it out. thanks anyway, videos that skip the removal and installation are not always helpful especially when they come out with new style latches and these bmw style latches, yeah a little lacking.
Need to remove the red cover from the multiplug. Then you can see a "barb" which secures the terminal. Using a pin, lift the barb and pull the cable out
A litile noisy that engine. Lifters ?
It's mainly due to the camera mic. Any car sounds awful on camera. Thanks for watching
nice video hope to see a lot more maybe a bit more explination why you went straight to ecu relay ie was it codes no 5 v ref etc keep up the good work
Hi where did you get the switched test relay from or did you make it. Cool quick by-pass test tool......
OK I see someone else asked same question and you replied. Trip to scrap yard I think. Maybe add wire loop to measure current 👍
I've had it about 20 years but since this video it melted !! 😂
You can buy them with loops built in from the states as a full kit
Good explanation, but the two wire for the coil of the starter relay where they are go?
Thanks in advance.
what point in the video (timestamp) do you refer to? I will check
My car is doing this:
ua-cam.com/video/xvjaCjtxlVU/v-deo.html
Could my BCM be the issue?
Post it again, unavailable
Hi all, just watched this video as I have just had a similar problem on my 2014 plate Mk4 Mondeo. Had to have the BCM module changed by Ford main dealer. Basically I was having electrical problems, after investigation by Ford they said BCM module had water damage. So BCM was changed. Does anyone know if the water tracking from washer bottle was a fault on Mondeos. And more importantly can anyone tell me of a fix so it don’t happen again. Thanks
I have another video for a non start mondeo with the water ingress through the washer pump. Easy to work out as the washer pump wires are on the affected plug. Problem with the mondeo was that the plug and wires where not available so had to repair them using sourced parts.
Hi could you please tell me why a lead battery can't be used on a ford with a smart charging system any idea?
batteryworld.varta-automotive.com/en-gb/standard-flooded-battery-start-stop
I have a Ford Focus 2013, i noticed that the water reached a socker from BCM (exactly the same issue as your shown in your youtube video). It created a short circuit destroying the BCM.
I would like to reach you but I am from Hungary and the cost of tranpsort would be enormous.
My BCM model is code DV6T-14A073-FU. Is a very rare code, i can't find it anywhere (used one). Everything i find is with ES, BK, BS, ET, DK, EU...nothing with FU. Are I likely to find one of these to be compatible with mine.
If i found the same code (FU) would I need to BCM reprogramming?
IF it's different code that mine, is it solved the compatibility with BCM reprogramming?
Best regards, and i am your best fun!
Ideally it'd have to be the same number or a superceded one. It would need configuring to match the specifications of your car and also matching to the immobiliser
@@SYDiagnostics Thanks for your answare. Does this mean that the immobilizer data is stored in the BCM, and after the change the keys will not work without reprogramming?
@@moldovanvalentin892 immobiliser data is stored within several units, the BCM being one of them. In order for the vehicle to start up, the keys will need to be matched to BCM and the BCM initialised to the PATS (immo) system.
Do you have the TSB? I'm in the US, and my 2014 is doing this exact thing. Local dealer cannot find part numbers for the harness kit.
if you email me i can send you the numbers. They are not Ford numbers, but are got through the Ford tools and equipment webpage run by Bosch. In the US the part numbers im sure are different.
Can you email me that too?
I'd be interested in the part numbers too.. also in USA and dealer wants $5k for parts and labor...
Awesome video mate I think it’s your best one yet 👍🏻👍🏻. You make that relay bypass??
It would be cool if it was home made, but I got a set of them from Mac tools about 20 years ago
👌 had this job at work
I have a 2013 focus se 2.0l won’t start after i drive it. I checked battery was good, put new starter, new relays on starter and Ignition relay and new negative battery cable. I also used the other key. Also it seems when it warms up and gets driven it don’t start. But when it cools it seems to start again. I’m stumped! Any pointers??
Thanks in advance
Great video!!!
2015 Focus SE. Same issue I'm currently having.
@@AaronRodgers12Pack check the transmission control module. That tells the computer it’s in park so it can start. That was my issue. Ford has a recall on the transmission control module but it was 30,000 deep last year on car with 150,000 miles or less.
@@Buggen-Out-Yo our 2013 Focus has had 3 Replacement TCM's .... And We still have the same problems of it going into limp mode and shutting down, no restart.
Sometimes, as OP seems to indicate, it can start again after "cooling off," just sitting for a while and somehow clearing its codes... You can also disconnect the battery to have it clear the link mode codes sometimes.... Then can start...
This car is a nightmare. Ford has a dispute resolution thing.... And arbitration, too. They put out a machine they knew was crap and they sell it and resell it without letting anyone know they made a bunch of half-lemons with a Ford Logo.
Excelent!!
Good job 👍
Have you got part numbers for plugs please???
736410712600
736410715400
@@SYDiagnostics found the big one for 150-200€, that's quite a lot for a connector. What was the prices you got? And thanks for the video!
@@alex.cristescu I think it was around £150 plus tax and shipping, but thats for all the items needed.....only thing with the bosch site is you get 2 of everything
@@SYDiagnostics Thanks for the answer. In the end after removing the BCM from the car and inspecting it, it was only lightly corroded (the issue I had was with the little water that accumulated in the plug itself). Opened and cleaned it, opened and cleaned the connector's individual wires, put dielectric grease on both and reassembled without the pump wires for now, which I'll have to replace and do the cut/crimp near the pump. But that'll come in a few days once it stops raining here. I have also removed the yellow/red start-stop wire from pin 8, as it wasn't connected in the BCM as I don't have start-stop. That was the wire which was shorting with the blue KL15 live wire. Maybe it helps somebody else.
Great find .keep the video's coming. Where did you get that, by pass relay from
its something I've had for a number of years, its since given up the ghost and melted, but I aim to repair it. Im sure in the comments below i put a link ?
@@SYDiagnostics . Great I will have a look .i have all ways been in the motor trade on the spanners mainly. But as cars are getting more complicated of lately iam trying to to get into electrics .not easy tho .but your video's help and explain things well chears
Great video mate, editing skills coming on nicely, not a bad diag either 👍 love the new catchphrase 🔥🔥🔥
That's a fix in my eyes !! 😃