Hi! Gunshot wounds. Mystery Part??

[LARS2011]

Hello!
I came for the manuals-staying for the forum!

I have a salvage 2011 Murano that took some bullets in the right quarter panel(yikes!). When I removed the interior panel I found a square "circuit board" attached to an air bag cable. I'm guessing it's a side impact sensor, the plastic housing it was in took the brunt of the assault. No SRS errors on the dash.
The manual doesn't call it out specifically and I can't find it at Nissan parts website.
Any ideas as to description/part number?
Thanks!

[VStar650CL]

There's nothing in the right rear quarter for the SRS system except for the side curtain airbag. The satellite sensors are all in the doors. Can you post a pic of the broken part and the approximate location?

[LARS2011]

I'm heading to the garage later today to take a picture- here's the approximate location(the big holes).

[VStar650CL]

That's weird. The EWD shows pretty much nothing in that area except for the power folding seat switch, but that's a white 4-pin connector that doesn't remotely resemble an airbag connector. There's actually no harness which humps over the righthand rear wheel, the Body #2 Harness stops short of it and crosses to center of the car underneath the rear seat, and the Body #1 Harness crosses the car from the other side and comes up past the taillight to end at the curtain airbag. So that whole area is pretty much an electrical dead zone.

[LARS2011]

You can see the bracket it was attached to and remnants of the plastic "box" it was in just above and to the right of the part. I can see a piece of plastic down in the "well", but haven't fished it out. The attached wire appears to be part of the airbag bundle.

[LARS2011]

Everything on car works -EXCEPT TPMS light flashes 15-20 seconds then stays on. Maybe this (antenna?) receives RR TPMS transmitter??

[VStar650CL]

No, the tire pressure receiver is underneath the lefthand dash. I have no idea what that is, it doesn't look factory. Might be an aftermarket GPS or SXM antenna. I think you'll have to trace what it's attached to, might be a GPS tracker or some such.

[LARS2011]

Definitely a factory connection to the wiring harness.
Found this on another site- not sure to what year/model he's referring.

It would make sense for the "triangulation" to occur that there are separate antenna near the wheels.

From the manual.

The transmitters in the wheels are not ID controlled, so it has to be a "zone" controlled system.

Time to "time" the blinks, then I'll pull the interior panel on the left rear to see if there's a corresponding "black box"!

[LARS2011]

I believe the "Nissan-Mastertech" is referring to a 2013 Altima.

[VStar650CL]

I believe the "Nissan-Mastertech" is referring to a 2013 Altima.

Nope. See WT-51 here and the wiring diagram on WT-14. There's a single TPMS receiver and it's under the lefthand dash.
https://www.nicoclub.com/service-manual ... 1%2FWT.pdf

[LARS2011]

Receiver - antennas?
Anyone have connector pin-out for TPMS receiver?

[VStar650CL]

Found it. It's the GSM antenna for the telephone adaptor. The cable is part of an antenna assembly, which is why it didn't show up in the harness diagrams. You would have found it if you traced the cable to its origin, it terminates at the control unit under the rear seat. The part is superseded and the original p/n is unavailable, the part you want is 28212-3YP0C.
https://www.nissanpartsdeal.com/parts-l ... phone.html

[VStar650CL]

Receiver - antennas?
Anyone have connector pin-out for TPMS receiver?

The pinout is 4 wires, it's M21 on page WT-15.

I should probably explain that "triangulation" is a misnomer for how most TPMS units determine the transducer locations. It does involve wheel angles and steering angles, so maybe calling it triangulation isn't a total stretch, but it certainly isn't triangulation in the manner of an RFDF. In most systems the sensors only transmit at one exact angle of wheel rotation while the car is in motion. So by knowing the steering angle and measuring the rates of transmission from each sensor, the BCM can figure out exactly which transducer is located where. The outside sensors will transmit faster than the inside ones because those wheels are spinning faster in a turn, and during steering the rear wheels will always transmit at a slightly faster rate than the fronts because of sideslip. The timing differences are microscopic but meaningful, and they're all the BCM needs. So there's no need for a second antenna at a distance like you'd need with an RFDF, it's timing the wheels and not looking at signal direction.

[LARS2011]

Well done, sir!
Thank you!

[VStar650CL]