FCM and LDW disabled "dealer cannot fix"

[ViniVidi]

End of 2016 start of 2017 Outlander GX4hs.

I lent the car to my sister for a weekend and while using it she charged it at a Chademo fast charge. The charge stopped half way through but there was no warning why and it was assumed the account ran out of credit. However, she then noticed that the car was looking for an EV service and the dashboard was lit up like a christmas tree with warning lights. The car went into limp mode and wouldn't charge at any other stations.

However it did charge at my home charge point.

I had it already booked in for a service as it was due, so I contacted the mitsubishi garage to tell them what had happened.

The garage did the standard service and cell smoothing etc. And also replaced some break parts.

However, they were unable to recalibrate the sensors for the FCM and LDW despite trying three or four times.

They called me to ask if I'd had the windscreen replaced as that can sometimes be the issue. ( I have not and I bought the car second hand in 2019 so it's been fine for four years) the only time I've had the FCM disable is while driving in snow or torrential rain as many others have.

They also asked if I had crashed it because tiny distortions to the front grille can cause issues with the camera and sensor lineup. I haven't and it was fine before, they also said they could see no visual evidence of damage but that it could be microscopic distortion not visible to the naked eye.

At this point they'd had my car for a week and the bill was serious money. They said they could keep looking but they've had cases where it often resolves itself etc. And it would cost me a lot of money. So I said to leave it as I didn't have much faith in them to sort it out.

Since getting it back I've been looking through forums etc and have tried cleaning sensor areas, cameras etc. I've been looking at the 12v battery which is generally clocking between 11.9 and 12.3 on the multimeter depending on time of day which the garage says is fine.

My assumption is that something was fried when the Chademo cut out, the question is what and how to track it down since I'm not an election or a mechanic, even if I'm handy enough.

I'm at a bit of a loss with what to do now to keep trouble shooting. Any suggestions welcome.

Also, I would assume if the sensor itself was faulty that would come up on the system with an error code for the garage?

 

[kenny256]

It's time to replace your 12V starter battery, those voltage levels indicate a worn out battery.

An old, weak or worn out 12V battery will cause a multitude of faults in an electric or hybrid car, especially in the charging or starting sequence. The main pack contactors require a strong 12V in order to hold the coil current steady. All of the ECUs have low voltage power supplies created from the 12V battery.

 

[nrayanov]

I think your 12V is about to die.

 

[ViniVidi]

Thanks for the replies so far. Currently sourcing a new 12V will report back if it fixes the issue or not in a few days. Very annoyed with the main Mitsubishi dealer who told me a new 12v would be €800 and could do basic checks to see what the actual issue was.

 

[ViniVidi]

Well, brand new HJ-S46B24L(S) YUASA 12V put in today. Left it 10 mins between disconnecting and hooking up the batteries, to give it time to clear, but the errors are still there. And the Automatic
Cruise Control is not working which is the main thing I want back in order! Any other suggestions or things to check?

 

[ViniVidi]

I realised that since the battery was replaced the LDW warning is not coming on. It's just the FCM "temporarily unavailable" notice now. In daylight I've gone back over the front of the car to clean the camera and any of the sensor points. On this model the radar sensor is not where it is on other Mitsubishi cars behind the badge in the grille. It's on the right front close to the headlights. The 8638A114 collision sensor unit looks ok externally. But I have a limited view of it. I gave it a wipe off as best I could, and I can see by the clips that are broken on the dirt shield that the garage must have tried to have a look at it. Not sure why they wouldn't have tried replacing it or something tho see if it's failed. Pretty miffed at the Mitsubishi Garage not being able or willing to look into this more. Going to try and contact Mitsubishi / another garage and see if they can do anything with it. Extremely frustrating.

 

[ViniVidi]

An update for this interested or disinterested! The issue is finally resolved. The radar was not faulty. The 12V battery was also not the issue either as previously concluded. There was no discernable reason for the issue at all. I took it to another dealer who is now the service centre for Mitsubishi since they pulled out of the market here. Apparently it's the same mechanic that worked at the other location,but perhaps they had more diagnostic equipment available to them here. It took a lot of problem solving time, but they finally got it working. They cleared some faults and did a full recalibration of the system that apparently involved a lot of convoluted steps such as re- calibration of the cars cruise control by driving at a particular speed for a set duration etc. as well as syncing the radar, sensors and cameras. Still no idea as to what the original cause was and my assumption remains that it was all set off by the charging error while using the public CHAdeMO fast charger belonging to the national grid company.

 

[greendwarf]

An update for this interested or disinterested! The issue is finally resolved. The radar was not faulty. The 12V battery was also not the issue either as previously concluded. There was no discernable reason for the issue at all. I took it to another dealer who is now the service centre for Mitsubishi since they pulled out of the market here. Apparently it's the same mechanic that worked at the other location,but perhaps they had more diagnostic equipment available to them here. It took a lot of problem solving time, but they finally got it working. They cleared some faults and did a full recalibration of the system that apparently involved a lot of convoluted steps such as re- calibration of the cars cruise control by driving at a particular speed for a set duration etc. as well as syncing the radar, sensors and cameras. Still no idea as to what the original cause was and my assumption remains that it was all set off by the charging error while using the public CHAdeMO fast charger belonging to the national grid company.

I suspect that an authorised service centre is able to effectively have the car electronics looked at and possibly worked on over the Internet by Mitsu in Japan. Perhaps something other owners might want to consider with other similar problems!

 

[ViniVidi]

I suspect that an authorised service centre is able to effectively have the car electronics looked at and possibly worked on over the Internet by Mitsu in Japan. Perhaps something other owners might want to consider with other similar problems!

The first place was an authorised service centre at a mitsubishi dealership. The second place, the last remaining authorised service centre and a former mitsubishi dealership prior to the market exit, actually has the mechanic from that first place now working for them and he remembered the car from the previous year. So it all seems a bit strange to me. My guess is maybe the second place had a better workshop or the service centre manager has a policy of getting things fixed come hell or high water!

 

[fmus]

The first place was an authorised service centre at a mitsubishi dealership. The second place, the last remaining authorised service centre and a former mitsubishi dealership prior to the market exit, actually has the mechanic from that first place now working for them and he remembered the car from the previous year. So it all seems a bit strange to me. My guess is maybe the second place had a better workshop or the service centre manager has a policy of getting things fixed come hell or high water!

Lucky you live in a country like that.
I have a similar problem, I gave up chasing Mitsubishi as they failed to fix mine and kept taking my money for diagnosis.
Is there any chance you mechanic could outline the diagnosis and repair step?

 

[Jodie Valero]

End of 2016 start of 2017 Outlander GX4hs.

I lent the car to my sister for a weekend and while using it she charged it at a Chademo fast charge. The charge stopped half way through but there was no warning why and it was assumed the account ran out of credit. However, she then noticed that the car was looking for an EV service and the dashboard was lit up like a christmas tree with warning lights. The car went into limp mode and wouldn't charge at any other stations.

However it did charge at my home charge point.

I had it already booked in for a service as it was due, so I contacted the mitsubishi garage to tell them what had happened.

The garage did the standard service and cell smoothing etc. And also replaced some break parts.

However, they were unable to recalibrate the sensors for the FCM and LDW despite trying three or four times.

They called me to ask if I'd had the windscreen replaced as that can sometimes be the issue. ( I have not and I bought the car second hand in 2019 so it's been fine for four years) the only time I've had the FCM disable is while driving in snow or torrential rain as many others have.

They also asked if I had crashed it because tiny distortions to the front grille can cause issues with the camera and sensor lineup. I haven't and it was fine before, they also said they could see no visual evidence of damage but that it could be microscopic distortion not visible to the naked eye.

At this point they'd had my car for a week and the bill was serious money. They said they could keep looking but they've had cases where it often resolves itself etc. And it would cost me a lot of money. So I said to leave it as I didn't have much faith in them to sort it out.

Since getting it back I've been looking through forums etc and have tried cleaning sensor areas, cameras etc. I've been looking at the 12v battery which is generally clocking between 11.9 and 12.3 on the multimeter depending on time of day which the garage says is fine.

My assumption is that something was fried when the Chademo cut out, the question is what and how to track it down since I'm not an election or a mechanic, even if I'm handy enough.

I'm at a bit of a loss with what to do now to keep trouble shooting. Any suggestions welcome.

Also, I would assume if the sensor itself was faulty that would come up on the system with an error code for the garage?

Hi all,
I got 2019, 7seater outlander.
FCM, LDW and AHD
GOt a quote frim mitsubishi to replace the module behind i guess at the rear view mirror.
$3200 for it. Its pricy or to dear for me.
But went to 3 different mechanic and they all point to the module.
They all had a go in resetting the fault but still comes up after a while.
I guess i have to fork it out from a budget somewhere. (Hayyyyy)
Nobody point to the battery. As i just relace it.
Damm this extra features, good but once it gets you..... it will bite you from behind in chuncks.... with no hesitation.
Ohhh,
And they said it 90% sure its the module.
It should be 98% for that price in my opinion. But fu@$%$@!.
Sorry. Goodluck to all

 

[fmus]

Hi Jodie
What module do you have behind the rear view mirror. Could you post a picture of it?
In mine it's the auto rain sensor and auto light sensor for the headlight.
The FCM is behindbthe bumper near the radiator fans etc.
I realise different countries would have different configurations, just checking!

 

[Nickie.01]

Hi all,
I got 2019, 7seater outlander.
FCM, LDW and AHD
GOt a quote frim mitsubishi to replace the module behind i guess at the rear view mirror.
$3200 for it. Its pricy or to dear for me.
But went to 3 different mechanic and they all point to the module.
They all had a go in resetting the fault but still comes up after a while.
I guess i have to fork it out from a budget somewhere. (Hayyyyy)
Nobody point to the battery. As i just relace it.
Damm this extra features, good but once it gets you..... it will bite you from behind in chuncks.... with no hesitation.
Ohhh,
And they said it 90% sure its the module.
It should be 98% for that price in my opinion. But fu@$%$@!.
Sorry. Goodluck to all

Hello, I have had problems since the car was new that were just corrected by the new test machine the dealer just got. I have a 2024, new in April 2024 and had it in repeatedly. Just before the last appointment the dealers diagnostic machine died. They replaced it with a new machine from Mitsubishi. When I just took it in they resolved several problems, but have some they are still unable to fix. Hearsay, but I was told that the bracket the module is mounted on is easily subjected to damage, and there is no new bracket or work around available yet? The fact is the module is not mounted behind the mirror (on our vehicle at least), and as another member suggested is behind the bumper. I saw a reference to a member that had the dealership work on the bracket unsuccessfully. I understand the mounting angle is critical, and blocking the sensor gives similar problems. So mud, ice, snow, heavy rain, high winds may cover the sensor, or cause deflection of the mount - either of which will cause intermittent failures. I would want to know if it is a bent bracket, or something blocking the sensor first. I am not sure if you have an extended warranty or any possibility of the part being covered by Mitsubishi, before committing to spending a large amount on the module? I have found others members extremely helpful, and would wait for more replies to your concern before committing to a large cash outlay. Good luck!