Hi Space coupe
Did you ever get your problems sorted with spoiler?

 

Any codes to be read?
Speed sensors cause problems.

 

Sounds like there might be an intermittent ground somewhere. Any grounds related to the issues on the schematic/service manual? Intermittants are most troubling to trace down, I hope you find the problem soon!

 

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I'm thinking here that if you closed the relay with the toothpick and problems cleared, did you then remove the toothpick and the problems came back? Then the relay isn't closing as it should and maybe sending it to tighed1 for a rebuild might help.

 

Hey sorry not yet ive still been studying up on the schematics so far I’ve traced most of it back to bus communication errors like I previously mentioned.

so far the bus communication is inclusive of the ecu>abs/bas module>Skreem>instrument cluster>SLA* (shift lever assembly)>TCM>Locking air pump/security system>BCM (TCM & SLA are for auto’s only, MT’s don’t have either one)

Im going to run a few more pin-out test to verify it is the bus in my car that’s causing all of this but if it is.. it’s gonna require that rewire that part of the system, is highly recommend wiring it inside the cabin and only routing the cable through the 2 fuses box terminals on either end of the engine bay because I feel like it’s orinignal position (running right over the trans) is the reason why it failed that and it’s the only wire outside of one other set in the entire wiring harness that has these really odd looking wiring nuts that are made of what seems to be hot glue related.

Ill keep everyone updated though. If anyone needs/wants the shop manual send me PM and I’ll send it to you directly via Dropbox link .

 

I cannot see any posts that mention error codes. Seems to me that is the first place to start.

 

Thank you very much,my mechanic is on holiday,so I’ll show him this when he comes back��

 

When I plugged up my car it read p0600 on several different readers and dealers which is a broad code relating to bus communication errors and what could potentially be the issue. One mechanic told me it was my abs module and I replaced it and that didn’t do anything. I’ve swapped my RCM (several times) that also didn’t work. Through my testing so far everything points to can +b/-c bus and it just connects all the cars modules together via wire splices to two 20 awg wire. If this is the problem I’m going to use 18awg to replace it and use different wire nuts and wire it through the inside of the cabin under the dash.

 

On a canbus there must be 120 ohm termination resistors on each end.

 

Can you explain ? As far as where would they be terminated and how cause in my finding there aren’t any resistors in the wiring it’s self .. the wires may terminate to a resistor within some of the car modules though.

 

Finally found the fault on my Crossfire.This little “thingie” was faulty,my mechanic fixed it and we bought a spare one,just in case it happens again,thanks for advise-hope you sorted your problem��

 

well, sir, whenever my spoiler gets stuck up, i disconnect the negative battery cable, maybe 30 seconds. reconnect the battery, take it down the road over 55, so it kicks in, well, as for me, it works everytime..its always fixed, ANY warning lites...but ya gotta go drive over 55, for the spoiler to function..good luck..it actually reboots the computer...

 

Got it sorted,thanks...it was the Auto relay,wasn’t working,got it fixed,and bought a new one on EBay for £10.00 so are prepared if it happens again.
Thanks for input��

 

Where exactly does this piece install ?! I’d love to give it a try; been procrastinating on re wiring the can bus system because of how long and tedious it’s gonna be if I end up having to do it.

 

These are in the RCM, and are tricky to replace unless you are good with a soldering iron and desoldering components.


PDF for Replacing the relay. CLICK

PDF for Relay specifications. CLICK

 

Space coupe it situated here.

 

:/ I’ve already swapped the RCM 3 times with no luck. So I’ve been chasing what seems to be an endless rabbit trail.

 

Did you replace the ABS Controller module and bleed the brakes? It's corrected this exact issue for myself and others.
in the end it made sense.. what else would throw all the brake/wheel/abs lights + no speedo and limp mode.. the ABS Controller module.