Engine pinging, no ambient sensor, ABS Slip & TCS Off lights stay on. First let me apologize if I'm posting/asking in wrong thread. I'm new to this type of thing. Here's the deal, I bought a 2006 maxima SE that had been neglected. I knew it needed some work but didn't know exactly how much. I've already replaced the high pressure power steering line and all 4 mounts. The 2 electronic mounts had been cut so I had to splice the new ones and hope I got the wiring correct since the colors didn't match. The ABS, slip and TCS off lights didn't come on until I changed the 3 motor mounts and 1 transaxle mount. I may have knocked a connector loose. Not sure. So here's where I'm at now. Starting to feel overwhelmed with all the problems I'm running into so I'm going to concentrate on what I feel is the easiest thing to fix. Ambient temperature sensor. The reading that I'm getting on the display is -22°. Being in South Louisiana I'm pretty sure that's not right. Tried to find sensor but all I've found was a black with yellow stripe wire hanging loose about 6" from left cornering light. Guessing the sensor was ripped off. Bought a new one to wire it in but don't know where to go with the other prong on the sensor. Pretty sure the bk/y is ground but don't see any other loose wires. Thanks ahead of time with any help given.

 

ATC - AUTOMATIC AIR CONDITIONER.pdf is the file you want for the service manual. Go to page: 91

Also, sort out the pinging. You're gonna damage the engine if you do not rectify that.

 

Guess I should of mentioned that I've printed out over 700 pages from the repair manual and yes the ATC section accounts for 132 of them. What I was really wanting to know is where or what harness would the other wire be. I wouldn't think it was ripped out all the way from the dash at the unified meter and A/C amp and what color wire should I be looking for? Really don't want to tear into dash but suppose I have to so I can try to follow it towards the front bumper. I agree about the pinging BTW. I've changed the oil and it helped but didn't stop it all the way. The person I bought it from said he changed the timing chain and that's the area the sound is coming from. Probably going to pull the cover off to get a better idea of what's going on.

 

I have no idea about that wire. I imagine some other members will chime in.

Take some video of what you are talking about, put it up on YouTube, and leave the link. That will help them help you.