2018 Trunk Release

StormWhite · 08-29-2018, 06:22 AM

Has anyone figured out whether its possible to retrofit the new 2018 cabin trunk release switch without the BCM module messing things up.

I notice Z1 Motorsports are stocking it which perhaps indicates it is possible.

SouthArk370Z · 08-29-2018, 07:57 AM

It should only require putting the new switch in parallel with the existing switch. But I haven't looked at the wiring diagrams, so I could be wrong.

2011 Nismo#91 · 08-29-2018, 10:59 AM

Wow $48 for a switch! Here are some cheaper ones that would work for less then $10, had them bookmarked for a future project.

https://www.wiringproducts.com/full-...ocker-switches

mlsully · 08-29-2018, 12:40 PM

Lol....buys expensive car and then complains about a $50 switch. Buy used ones off eBay for less.

StormWhite · 08-29-2018, 01:07 PM

Quote:

Originally Posted by mlsully

I did this on my 2015 last year. You will need the switch (I used the one from a G35). The wire you tap into is in the BCM behind the passenger kick panel. Its a gray wire, bottom corner of 40 pin the harness. If I remember correctly the pin number is 36. This is a negative pulse system, so tap into that wire and the other wire for the switch goes directly to ground.

Thanks for the info.

I bought this switch from Ebay. Cheapest I could find even with UK postage.

Sully,
I guess its a momentary switch and I use two of the four terminals?
Did you buy a connector for the switch or solder the wires?
Do you reckon the BCM will still be on the passenger side on a RHD car?

Jayhovah · 08-29-2018, 02:37 PM

Quote:

Originally Posted by mlsully

I bought a used switch that had the harness still attached, but the wires were cut off.

That's what I'd like to find....

StormWhite · 08-29-2018, 03:10 PM

Quote:

Originally Posted by mlsully

I bought a used switch that had the harness still attached, but the wires were cut off. 2 wires go to a switched power source for the light on the switch. I tapped into another harness under the center console for this. So when I turn on my head lights, the switch lights up like the factory one would. The other two pins are for the release itself. Just ground one and then run a wire to the BCM. If it’s not under the panel on the right side of the car, check the left.

The bottom harness in the pic is what you’re looking for under your kick panels.

That makes sense - I had overlooked the switch illumination.

I would really like to source a plug, I am hoping its a JST but I don't know the size. It might become clearer when the switch arrives.

When I was younger you could wander round car scrapyards removing parts you want but these days with health & safety in the UK you cannot do this any more in case a car falls on you.

DeliriousClam · 08-29-2018, 08:42 PM

Quote:

Originally Posted by mlsully

I did this on my 2015 last year. You will need the switch (I used the one from a G35). The wire you tap into is in the BCM behind the passenger kick panel. Its a gray wire, bottom corner of 40 pin the harness. If I remember correctly the pin number is 36. This is a negative pulse system, so tap into that wire and the other wire for the switch goes directly to ground.

Here

NorthStyle · 08-29-2018, 10:03 PM

mlsully and DeliriousClam - you both are awesome. Thanks for the info!

NorthStyle · 09-04-2018, 07:47 PM

Question for those that have installed the trunk release using an OEM switch: the switch and pigtail I received has four wires coming from it (black, black/grey, blue, purple). Since mlsully said that it's a negative pulse switch, I'm assuming I'll be using the two black wires to complete the circuit (please correct me if I'm wrong). If that's the case, which of the remaining blue and purple wires would be used for illumination and what is the extra wire used for, if anything? My pigtail came from a Nissan Murano, if that matters.

cooltoy · 09-04-2018, 08:33 PM

You are doing great work, but sorry, I do not see the point of this mod. One still has to walk to the hatch and lift it. What difference does it make if you press a button inside or outside?

I am not trying to be negative or diminish your work in any way. Just trying to understand.

Maybe if I was explained what the advantage was, I would do this mod too.

mlsully · 09-04-2018, 09:11 PM

I’ve used it many times where I pop my hatch when I pull up to a friend’s house for them to throw **** in the back of the car. It’s easier than trying to explain where the outside button is. Yes, for the most part it is redundant, but it’s a quick $20 mod and fill up the blank button slots.

NorthStyle · 09-04-2018, 10:45 PM

Quote:

Originally Posted by mlsully

I’ve used it many times where I pop my hatch when I pull up to a friend’s house for them to throw **** in the back of the car. It’s easier than trying to explain where the outside button is. Yes, for the most part it is redundant, but it’s a quick $20 mod and fill up the blank button slots.

Pretty much the same... and it gets rid of the last blank in my center console so that's just an extra plus.

cooltoy · 09-04-2018, 10:57 PM

No way anybody but me touches my car (other then dealership staff i guess).

NorthStyle · 09-05-2018, 09:08 AM

Quote:

Originally Posted by cooltoy

No way anybody but me touches my car (other then dealership staff guess).

Well then this probably isn't for you.

08-29-2018, 06:22 AM	#1 (permalink)
StormWhite Base Member Join Date: Aug 2017 Location: Hampshire UK Posts: 225 Drives: 2017 370Z Coupe Rep Power: 74894	2018 Trunk Release Has anyone figured out whether its possible to retrofit the new 2018 cabin trunk release switch without the BCM module messing things up. I notice Z1 Motorsports are stocking it which perhaps indicates it is possible.

08-29-2018, 07:57 AM	#2 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	It should only require putting the new switch in parallel with the existing switch. But I haven't looked at the wiring diagrams, so I could be wrong. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

08-29-2018, 10:59 AM	#3 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,401 Drives: slowly Rep Power: 40569	Wow $48 for a switch! Here are some cheaper ones that would work for less then $10, had them bookmarked for a future project. https://www.wiringproducts.com/full-...ocker-switches __________________ GTR TT 493Whp/431lbft, Ecutek, Southbend 6puck,Quaife, RPM RollBar 4Point, R888R, JRZ RSPro F(10R/10C) R(10R/6C) 1000f500r inlbs+150inlbs Tender, SPL everywhere.Full Specs

08-29-2018, 12:40 PM	#4 (permalink)
mlsully Base Member Join Date: Jan 2017 Location: Baton Rouge Posts: 175 Drives: 2015 Nismo Rep Power: 43	Lol....buys expensive car and then complains about a $50 switch. Buy used ones off eBay for less. cooltoy, ryukai, JonnyBravo and 1 others like this. __________________ 2015 370z Nismo 7AT. Tein Flex Coilovers, Stillen Gen 3 Intake, Fast Intentions Test Pipes and Exhaust, APR Splitter, Vossen CV5 Wheels, Tuned by Seb

08-29-2018, 10:03 PM	#9 (permalink)
NorthStyle A True Z Fanatic Join Date: Aug 2015 Location: Deutschland + SC/FL USA Posts: 1,258 Drives: 2011 370Z Nismo Rep Power: 24277	mlsully and DeliriousClam - you both are awesome. Thanks for the info! mlsully and StormWhite like this.

09-04-2018, 07:47 PM	#10 (permalink)
NorthStyle A True Z Fanatic Join Date: Aug 2015 Location: Deutschland + SC/FL USA Posts: 1,258 Drives: 2011 370Z Nismo Rep Power: 24277	Question for those that have installed the trunk release using an OEM switch: the switch and pigtail I received has four wires coming from it (black, black/grey, blue, purple). Since mlsully said that it's a negative pulse switch, I'm assuming I'll be using the two black wires to complete the circuit (please correct me if I'm wrong). If that's the case, which of the remaining blue and purple wires would be used for illumination and what is the extra wire used for, if anything? My pigtail came from a Nissan Murano, if that matters.

09-04-2018, 08:33 PM	#11 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,973 Drives: 14 PW 370Z S/T MT Rep Power: 243722	You are doing great work, but sorry, I do not see the point of this mod. One still has to walk to the hatch and lift it. What difference does it make if you press a button inside or outside? I am not trying to be negative or diminish your work in any way. Just trying to understand. Maybe if I was explained what the advantage was, I would do this mod too. JARblue, axmea?, Optimiser and 2 others like this. __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang. Last edited by cooltoy; 09-06-2018 at 08:26 PM.

09-04-2018, 09:11 PM	#12 (permalink)
mlsully Base Member Join Date: Jan 2017 Location: Baton Rouge Posts: 175 Drives: 2015 Nismo Rep Power: 43	I’ve used it many times where I pop my hatch when I pull up to a friend’s house for them to throw **** in the back of the car. It’s easier than trying to explain where the outside button is. Yes, for the most part it is redundant, but it’s a quick $20 mod and fill up the blank button slots. ThaTenthLetta and skeet like this. __________________ 2015 370z Nismo 7AT. Tein Flex Coilovers, Stillen Gen 3 Intake, Fast Intentions Test Pipes and Exhaust, APR Splitter, Vossen CV5 Wheels, Tuned by Seb

09-04-2018, 10:57 PM	#14 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,973 Drives: 14 PW 370Z S/T MT Rep Power: 243722	No way anybody but me touches my car (other then dealership staff i guess). Optimiser and Nixin like this. __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang. Last edited by cooltoy; 09-05-2018 at 11:45 AM.

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