It started with an autocross day: First time for me (and the car, I'm sure). There were 4, 5-min runs on a short course. First sign of trouble was the yellow check engine light at end of 4th run. No "!" lights, just the yellow ch eng which I had never seen before. Oil, coolant were OK. So I drove the 2 hours home, no problem, light stayed on. Next day start checking fuses and relays. The XV, which is ABS seemed likely so I removed it for exam. Rained threatened so I put car inside and then all hell broke loose. When I turned key to off, The anti-theft alarm went off and the PSD text "System Disengaged/Off" light showed and the doors locked. I doubt ABS has any effect with anti-theft. The relay chart in the car calls XV "anti-block", but ABS is the translation.

I was able to manually unlock the door and window so I could exit and unhook the batt to shut off the alarm. The relay is was replaced with a new and when batt is connected the alarm resumes so I am posting a pic here of a loose wire (I think connects to something, but I'm not sure what).

Colin Jensan, are you reading this? We could continue this with PM, but I couldn't post a pic there. The yellow wire seems to have lost its home. The red, white and black (and yellow?) are connected to the Innovate A/F ratio device you installed when you Shark Tuned the car. This yellow could trigger the "check engine"? Can you tell me where it should connect? The yellow seems to match the red in length; could the yellow be pig-tailed with the red and come out of that butt splice?

I doubt it has anything to do with the alarm, which is the overriding problem I need to solve, but the yellow is what caught my eye when I opened the CE panel.




Neither the green PSD nor ABS lights came on during the cornering. The rear end did break loose once or twice during the runs, and I thought it was odd no lights came on, but I guess it is possible the wheels were in sync enough to not trigger anything??

 

The yellow wire on the WBO2 system is the WB output. This wire is connected to the sharktuner to tell the ST2 what the AFR is. It should not be connected to anything at all.

 

Colin, thanks. I will tape it off.

 

With Stan's help the problem is assumed fixed. Closing the hatch and opening with the key shut it off. I tried it more than once w/o success, but 3 times is a charm? A month prior I had installed a new hatch receiver grommit (rubber) that surrounds the white pressure tab which the hatch pushes against inside the chassis body. It had been opened and closed several times since the installation. Maybe the new rubber needs some time to adjust to its new home. It is not related to ABS or PDK. So for now it is fixed.

 

Great to hear Steve. Keep driving until the LI weather/salt prevents it!!