MK7 Ford Fiesta - How To Diagnose & Fix Tailgate Not Opening

In this video we shall be diagnosing and fixing a 2016 Ford Fiesta. The vehicle has a tailgate that will not open with the tailgate button release. www.amazon.co....
#mk7fiesta #fiestatailgate #fiestabcm
The video shows a simple and methodical diagnostic approach and fix by using correct information and circuit understanding.
"Think smarter not harder" is my motto and this was put to good use in the diagnostic path towards the fix, leading to the successful diagnosis and subsequent replacement of the Body Control Module (BCM). No unnecessary parts where fitted nor any parts removed.
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Please watch: "Ford Focus Mk4 - Malfunction Warnings & Can Bus Errors"
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[@samuesoeilyoriy6581]

good job. and thanks for taking the time to record and post this types of videos which are a great help to me and i am sure to other guys and girls in the trade.

[@AldiShuli]

Great explanation Steve. You deserve only thumbs up 👍👍👍.

[@kennypatrol2zero616]

Hi Steve I watch all your videos, and I've had a lot of conversations about the transit with the earthing wiring, that really blew my mind, like WTF, keep up the good work, cheers.

[@SYDiagnostics]

Would that be the can bus transit? I still keep in touch with my ex RAC friends regularly

[@weldingjunkie]

Nice job Steve they keep getting better and better .. Jay

[@gtautomotive22]

Nice diagostic. Thanks

[@AbbottAutomotive]

Another fantastic diag and repair 👍🏻

[@BrianMann216]

Thanks for sharing, well done.

[@kennypatrol2zero616]

Well explained Steve and the picture slides were excellent, I really liked it, it must have been a lot of work doing that, cheers well done.

[@SYDiagnostics]

yeah it takes some time on powerpoint, im sure there must be an easier way lol.......im not wanting to post too many actual wiring diagrams, thanks for the comments and for following. Not seen you comment for a while ;-)

[@miketurner1444]

Great vid Steve , liked the wiring breakdown slides 👍

[@benjaminlevi7792]

Great thanks for your useful info

[@emissionsservicecentre8578]

Love your videos Steve

[@SYDiagnostics]

Thanks, I try to keep them simple and not too long

[@markholian3506]

Great “tiny tots guide” Steve - I’m one of those guys who would of been straight in the boot 🤪🤪

[@SYDiagnostics]

im not a fan of being a tunnel rat and crawling into dark spaces fully of customer rubbish ...lol

[@weldingjunkie]

SY Diagnostics agreed on that lol

[@davidhoad3190]

Quality again, thank you.

[@JBTaylor86]

Top job Steve 👍🏻

[@SYDiagnostics]

Cheers John, still waiting for your video's ;-)

[@Elconbrioso]

Thanks for posting. By the way, the US version explaining why you have to be careful about making assumptions goes - To assume is to make an ASS/(out of)U/(and)ME

[@edmondsollaku6535]

Thanks for sharing Steve. I like the way you diagnosed that form the passengers seat. I would've been straight in the boot probably blaming the switch or the actuator. It just show's knowledge is everything. Top diag👍. Quick question if I may. Can the forscan program the bcm?

[@SYDiagnostics]

I must admit that Im unsure if Forscan would complete the task, i ought to have tried really

[@SaxJockey]

Thank you for the video. Interested to know what the approx cost would be to diagnose/repair/reprogram at a garage including parts, labour and tax? I have the same problem to investigate and assumed the most likely fault was the working hardware (actuator, switch or wiring that flexes when the tailgate opens/closes). A fault with the BCM (presumably a solid state 'high reliability' unit) would be a VERY disappointing relatively expensive fix for a fault with a single door lock 🙄.

[@SYDiagnostics]

Probably around £500-600 for that job including the diagnosis, parts and labour

[@SaxJockey]

@@SYDiagnostics Many Thanks...bit of a shocker for a door lock fix 😲.

[@SaxJockey]

Had the car apart today, traced the fault to the tailgate release switch. Around 7 Megohm instead of continuity; new replacement on order. Had the switch apart (another vid on here shows it dissassembled), the extremely small moving electrical contact had broken and the mechanism lubricant had contaminated the contact. Your schematic diagram was useful. The very low control current from the switch to the body control module explains the rather delicate switch mechanism. The BCM handles the slightly higher current to the motor in the catch mechanism. I also had that apart, it looked in good condition, the motor and gears were clean, adequately lubricated and free to move. Bypassed the faulty switch and confirmed the motor/catch opened fine.

[@TMckenzie007]

Great work. But i have question regarding my Renault which I would like to ask you if you don't mind?

[@SYDiagnostics]

sorry, im Ford only.

[@igigig27]

Good fix , are you ever tempted to open up the modules to see if its a discrete component that failed as opposed to a IC or mosfet etc ?

[@SYDiagnostics]

its beyond my skills to start repairing pcb's ...... if it where my own car, then maybe a different approach

[@brianbrianb2289]

Hi Steve did u press the boot open button on the key fob if so did the lights flash or nothing also looked at the plug on the bcm module couldn’t find any PIN numbers on the plug for the wire going to tailgate to open it

[@miguelferreira1051]

Hello.. I'm from Portugal, I wish my dealer was so good as you are!! I have one of those fiesta's.. Hope that don't happen to me! Regards

[@hendrimaulana9625]

Nice Information, can you tell me how to open the Tailgate if the selenoid button doesn’t work and the keyfob remote doesn’t work too ? Is there any ways to open the trunk manually from the inside ? Thanks anyway

[@aarons392]

Hello my button isn’t working but when I do it on the key it unlocks what would you suggest thanks

[@SYDiagnostics]

Have you access to any live data as you should be able to view the button activity

[@JustxxxRaV]

My tailgate switch not working and the light inside the trunk not working but opening trunk with a key pilot working good. What is the problem?

[@MrSonicAdvance]

I appreciate thinking smarter not harder, but you didn't test to see if the rear hatch was released by the button on the key.

[@SYDiagnostics]

Good point. But ultimately the bcm was the cause

[@GW._.]

8.37 new module easy as that 😂

[@pauljones9475]

Hi there, i have a similar problem with my son's 2009 Fiesta, however the release works but the warning alarm keeps sounding and it's constantly draining the battery. Whould i replace the latch mechanism or follow your diagnostic. TIA

[@SYDiagnostics]

check the wiring plug on the tailgate release switch. they are common for water ingress

[@OxydowGR]

Hello, iv got a 2010 1.4 TDCi Fiesta and im trying to find out why my footwell lights dont work. I bought the car a month ago, didnt know there where footwell lights i just found them letter. The car has got footwell lights(wiring &etc) but they dont work. Maybe becouse like its the base model? maybe it needs any activation from this program? Can you help me?

[@jasoncole7711]

Is that diagnostics provided in Forscan Lite, or only the PC version?

[@SYDiagnostics]

ive not experienced the "lite" version, so can't give any informed advice

[@jasoncole7711]

@@SYDiagnostics OK thanks :)

[@brianbrianb2289]

Hi steve my switch is fine tested with meter are the pins numbered up going to the power to the tailgate and if my bcm is faulty like yours can I buy a second hand one of ebay matching the part number and wil it need to be reprogrammed

[@SYDiagnostics]

Multi plugs are usually numbered. That bcm didn't need coding in. It was a direct fit. But had to configure it.... So forscan is worth a go

[@brianbrianb2289]

@@SYDiagnostics thanks Steve so Il be ok getting one of ebay with same part number do u know what I go on on the forscan software which I have

[@frankrigby7937]

Great video. However I have a similar problem with my 2012 fiesta. My tailgate pops open when I'm driving. Did you ever come across this problem. Thanks in advance. Frank.

[@SYDiagnostics]

Yes it's usually water ingress and corrosion on the tailgate release switch harness

[@frankrigby7937]

@@SYDiagnostics thanks for that. Is it a DIY job or a garage job?

[@SYDiagnostics]

@@frankrigby7937 i've no idea of your skill set, however, its not a difficult job to strip it and check for corrosion in the loom

[@frankrigby7937]

@@SYDiagnostics ok Steve I'll have a look at it tomorrow. Thanks again.

[@anthonypadmore1407]

my boot opens with the key fob but not with boot switch what would cause this

[@NOONORBORA]

I had this problem on a 2013 fiesta replacing the boot switch button fixed it for me

[@igorolenitsj9050]

What do you mean with pin 6?

[@SYDiagnostics]

where in the video and i will look

[@igorolenitsj9050]

The schematics. Pin 6 and 7.

[@SYDiagnostics]

@@igorolenitsj9050 pin 6 is a ground to the bcm via the tailgate release switch, pin 7 is the 12v supply to the tailgate motor. The reference to C2280C /G are the BCM multiplugs

[@igorolenitsj9050]

@@SYDiagnostics thank you. One more question. I do not have a test bulb so I am using a multi meter. I am now connected with pin 6 via the multimeter from the battery. I am reading constantly around 0.135 volt. Does this mean the trunk button is "stuck" or is this expected and therfore the voltage should increase when the button is pressed.

[@SYDiagnostics]

@@igorolenitsj9050 with the button pressed and your meter in pin 6 and on a battery live, you should see battery voltage if the meter is quick enough to capture

[@Bassam5432]

very good but I hope that you use better words without **... you're good and no need for this .... Thx :)

[@SYDiagnostics]

Apologies if the language offended

[@taikun3537]

stupid car, what not made manual lock to back door?

[@SimplyDiagnostics]

Great case study Steve, you're awesome ⭐

[@SYDiagnostics]

Cheers Steve

[@icandigitbabe]

very well presented - great work