hi everyone,
can anyone point me in the right direction with this issue?
the light on the spoiler switch is flashing,
i read a previous post which said that if the roof didnt work either it was the boot latch sensor not telling the car it is shut.
so i tried the roof and sure enough that wasnt working either so i got another boot latch(with the sensor attached) replaced it and nothing ! its still the same neither will work and the light is still flashing .
when i try the roof the windows go down then nothing ,,just beeping

any ideas would be appreciated

thx Andy

 

dubboi7
In order for any diagnosis from the forum, we will need a few more details about your Crossfire, such as, year of manufacture, does it have the original Varta battery (white case), miles on the car, meeting the maintenance schedule, etc....
From your limited information, sounds like you need a new battery. Even though a battery test may prove to be OK, these cars are very sensitive to lower battery output, due to the electronics.
Dennis
DTMenace

 

yeah thx
its a 2005 ,68k on clock it does not have the white battery i replaced it about 1 yr ago with a new battery and it has full service history

the only other thing i should mention is that its been raining here in england almost constantly for the last 2-3 months and i did have a drainage hole blocked with dirt and leaves which resulted in the footwell filling with water ,,this has been cleared now and is no longer letting in any water.

maybe this could have caused some damage? as i understand the ecu is under there somewhere?

 

Ok, you have GOT to give us more information that that. "Not working" is not helpful.

The Spoiler:
THe light is flashing - is the spoiler stuck up or is it down?
Does it deploy above 64 mph as it should?
When sitting still, will it move up or down if you press the button?

The Roof:
When you turn the handle and raise the roof up above the windshield frame, do the windows go down?
When you press the button - does the light in the button flash? Do you get a beep?

Have you noticed the traction control (yellow) light come on or flash at times? (This is the light in the speedometer.)

 

The PTCM/ECU is in a box under the hood with the BCM and RCM.
The Sound System power amp is under the passenger's feet.
The Top control Module is in the fenderwell, back on the driver's side near the pump.

The door locking pump is in the passenger side fender well (in a Roadster, I believe in a Coupe the Locking Pump is under the mat in the trunk).

 

no nothing happens at all ,
i got in the car one morning and the light on the spoiler switch was flashing and nothing happened when i pressed it ,no noise and the spoiler would not go up ( its in the down position and the beeping speed alarm goes off when i drive over 90mph,

i read the forums after discovering this and that is when i found out that the roof does not work as one post said that if the roof and the spoiler dont work it is the boot lis sensor telling the comp it is not shut,.so i replaced the boot latch but its still the same

 

oh and when i try to put roof down ,,i unlock the handle on the roof and the windows go down as normal but then nothing ,,just a beep

 

It IS true that if the trunk lid is not closed all the way, then neither the spoiler or roof will move.
But I question something: the latch assembly and the sensors that tell the BCM that the trunk is closed are not part of the same assembly, as far as I know. That is, if you order the latch assembly, I don't think it comes with the sensor(s).

Do you have the old parts? Can you verify this? There is a sensor that tells the BCM the trunk is closed. And there is a separate electric lock/sensor that has to activate to securely lock the trunklid so that the top pump will run. Now, this sensor/assembly would not have anything to do with the spoiler - only the sensor in the latch area that tells the BCM that the trunk is closed will have an effect on the spoiler.

I am headed to lunch, back in a bit.

 

thx for the reply
the sensor is definitely part of the latch its fitted inside the latch and is an integral part and cannot be removed ,,its inside and the two sides of the latch which are press riveted together so you cannot take it apart ,,both my old latch and sensor switch and the new one seem to work as i can press them with a very small screwdriver and they both click in and out (not that i def know they both work or not)

i had another sensor replaced last yr when the spoiler was stuck in the up position and that was totally different then it just would not stay down

 

Mark... think an electronics "time out" might help? Possible the signals and activations are in a "mis-sync"? What part of the latch system "activates" the switch to close the circuit? Any chance it's out of adjustment?

 

im not too sure ,i wouldnt think so as iv had the car running plenty of times before with the boot lid open and the spoiler switch light has never come on.
the part of the latch is inside the latch attached to the lid and as soon as the "hook" on the body is located inside the latch( that curls around it to lock the boot) it touches and clicks the sensor
i dont know what an electronics time out is sorry

 

Don't rule out the battery just because it's only a year old. Batteries can short too. I had a year old battery go bad. Spoiler started raising upon startup. Checked the bat and it read 60% charge. Would charge up to 100% but the next day back down to 60. Replaced it and all was back to normal.

 

I know there has been much discusion on the boot /trunk latch, but I didn't see mention of the divider latch. if the divider latch is not depressed then The top will not function. I do not know if that will affect the spoiler, but just my dos centavos bro.

 

Miata might be on to something. You might try taking the battery cable off the battery and leaving it off for a minute to 'reset' things. (Just a thought).
And a one year old battery CAN be a problem.

ANyway:
But I tested my car just now, having the trunklid ajar or FULLY open does NOT stop the spoiler from coming up by the switch. It only stops the top from moving.
We may have two issues here, but the ONE common item seems to be the battery. Would you have another car that you can "borrow" the battery from for a test?

Try a different battery and see what you get. We can go from there.

 

thx everyone il just go buy a new battery and try that ,,if that doesnt work at least il have a spare for when something else goes wrong lol

 

Hi dubboi7,

I had the exact same symptoms as you. The rain really has been extreme, and because of the wind, I can't put my cover on the car, so it gets WET!

Anyway, I noticed some moisture around the boot lid, and particularly around the plastic cover for the spoiler gubbins.

Visiting the parents this weekend, I took the opportunity to make use of their garage, so I parked it indoors overnight. This morning I pulled the plastic cover off of the inside of the boot lid and gave it a once over with a hair dryer so it was all nice and dry.

= Flashing red light remained

I removed the black electric connector for the spoiler sensor (the blue is the motor, which I left in place).

= No flashing light, so it looked like the spoiler was the culprit.

With the spoiler sensor still detached, I shut the boot to and saw what would happen if I tried the roof.

= Roof doesn't move, but a whirring shows that the spoiler is lifting to its "motorway" position.

I then reattached the spoiler sensor wired and turned the ignition once more

= No flashing red light

I lowered the spoiler manually, and took it for a drive and it goes up and down without issue. The roof is also now working as expected.

Oh and the sun is out - I'd call this a good day all in all.

 

great news for you ,,,il definitely have to try it(when it stops bl**dy raining)
so fingers crossed
thankyou ,

 

hi guys,
had an auto electrician look at the car he tried to run a diagnostic on it (tricking the tool into thinking it was a merc as he didnt have chrysler softwhere)
it would talk to everything except the roof
now he said it suggests to him that the roof module is faulty

my question is if the module is nackered would it still stop the spoiler workin?
as the flashing light is still on on the spoiler switch

im guessing il have to bite the bullet and pay the ripoff chrysler diagnostics prices

also does anyone know how long a diagnostic takes? as i dont want to pay £80+vat an hr if they drag it out for a load of hrs

thx

 

The Body Control Module controls both the hood and spoiler. As far as I know, the BCM is a Chrysler part, so may be the only electrical system that a Merc diagnostic couldn't understand properly. Fingers crossed that's the case and the BMC isn't bad, as they're expensive.

Good luck.

 

Maybe the answer to my question is in this thread but I did not see it.

Many times people say that this or that is not working, but when did it stop working? Was it after the car had been parked overnight and did not work in the morning, did it happen now and again and is now not working at all?

These are relevant clues and are often not stated.