suchamoneypit
Greenie N00B Member
I have a 2010 speed3 that won't start, been sitting for a while in my garage. I bought the car knowing it had an issue starting, got it started bypassing at the fuse box, and it died halfway home. It idled for around 5 minutes and drove for around 3-5 before it presumably immobilized itself (P1260 Theft detected, vehicle immobilized). The car has the push button start and smart key, when you clutch in and go to start, the button flashes red instead of green, and I get P1708 with additional fail symptom "Signal Compare Failure". Everything seems to be telling me this is an electrical problem and not mechanical.
I have two programmed ECUs and a key, and I had someone come out and confirm the ECUs and keys are working. I've replaced both the clutch switch (under clutch pedal) and the neutral safety switch (on the transmission case). I've also replaced the starter relay. The car will crank over if I bypass at the fuse box at the start relay with a paperclip, but won't start.
At this point, it seems like I must have a break or short in my wire harness for this wire? I'm considering swapping the entire harness from my other speed3 with a blown engine I also got sitting around to see if that fixes it.
I have two programmed ECUs and a key, and I had someone come out and confirm the ECUs and keys are working. I've replaced both the clutch switch (under clutch pedal) and the neutral safety switch (on the transmission case). I've also replaced the starter relay. The car will crank over if I bypass at the fuse box at the start relay with a paperclip, but won't start.
At this point, it seems like I must have a break or short in my wire harness for this wire? I'm considering swapping the entire harness from my other speed3 with a blown engine I also got sitting around to see if that fixes it.
