Nissan Relay Question

[yearoftherat]

A question for all you wiring know-it-alls.

I have a Nissan Relay (part #25230-7996A)



which is built in to a harness which I need to hook up a switch like this:





I'm having problems figuring out which wire from the switch connects to the relay. If anyone can help out, much appreciated.

[sprocket]

For starters, that schematic for the relay is wrong. 1, 3 and 6 are not connected to each other (or any pins for that matter). Try this link: http://www.st-relay.com.tw/exec/product ... 730A)&lg=E

The relay is pretty simple. Provide 12V over 1 and 2 to energize the relay coil (polarity doesn't matter), it will close 2 sets of contacts (1st is 3 and 5, 2nd is 6 and 7). You can wire up either or both sets of contacts depending on your need.

You'll need to share more information on the switch before I can provide some suggestions on how to wire it up. Can't tell if the switch is a momentary or a latching switch (e.g. push once and it latches on, push again and it releases). The switch looks like it had a power indicator and may also have nighttime backlighting, these can't be assumed from the 4 wires and labels indicated.

[sprocket]

If the link doesn't work, do a Google image search for the 25230 7996A. FYI, the schematic is molded to the top of the relay, the pin #s to the bottom of the connector. I think you mentioned you already had the relay ... if so, you can just look at it and it'll make sense.

[yearoftherat]

Thanks for the info. Yeah the picture I provided is wrong.
The switch is a latching which does have nighttime back lighting and power indicator.
This is what I've been able to figure out so far:

Switch wire #1 red is for the fog symbol/nighttime lighting.
Switch wire #3 red is for the power indicator.
Switch wire #4 black is ground.
Switch wire #2 green, I am guessing is going to supply power to a light I want to hook up.

In regards to the relay you are correct in that the image supplied is wrong.



The existing wiring to the relay:



Connectors # 2,7 and 6 are ground
Connector #3 has 3 wires going to it. One is for incoming power, one is going to light, the 3rd one is going to the switch.

The yellow wire from connector #5 and the white wire from connector#1 are suppose to go to the switch but not sure to what.

What I am hoping to do is the following:
Only when the car is on, I can press the switch and turn the light on . When I turn off the car, the relay will deactivate the light switch until I turn on the car again.

[sprocket]

Is that a Nissan switch, is there a part number on it?

On the switch, you've bundled two wires as #4, might be good to separate it so we are looking at 5 wires. I feel like there might be a 6th that's missing. I feel like the switch should actually have 6 wires:
SW in
SW out
Night time ill +
Night time ill - (since they're usually dimmable, they would not be internally tied to something else)
Indicator LED +
Indicator LED -

1) Need to figure out SW in and SW out. Using a voltmeter, check for resistance continuity as you push the switch on and off. This is crucial to figure out, as you will need SW in and SW out to control the relay coil actuation.

2) It's going to be tricky figuring out which one is the night time illumination vs the indicator, especially when there's only 3 wires on your connector. This is why I feel like you're missing a 4th wire in that connector.

[yearoftherat]

The switch was bought on AliExpress. The switches on the 2014-2016 Rogues are more square in shape compared to previous models that were more rectangular.
From what I've figured out for now:

SW + is wire #2
SW - is wire #4
Night time ill + is wire #1
Night time ill - is wire #4
Indicator LED + is wire #3
Indicator LED - is wire #4

[sprocket]

Try this



Some things to note.

1)) You indicated that three pins on the switch use the same wire #4 all tied to the same ground. While this will work, you won't have the ability to adjust the night time illumination level (it will run at full brightness). I also noticed that the switch pic only had 2 wires. If either your indicator or night time illumination doesn't work, I suspect you actually need a 5th wire to one of the unused pins on the switch connector by trial and error.

2) Make sure your wire sizes can handle the current load. I'd recommend a minimum of 0.5mm^2 metric when tied to a 10A fused circuit, a 0.85mm^2 for a 15A fused circuit, 1.25mm^2 for a 20A fused circuit. For the battery feed tie-in, you'll want a dedicated connection to the battery (e.g. an unused 15A fuse in the block or you add your own inline fuse holder tied to battery). For the ignition and illumination feeds, refer to the vehicle service manual and set accordingly. When in doubt, go higher. You can do a google search to convert metric to AWG wire size.

3) Make sure to protect all wiring to prevent short. Solder all splices so they don't come apart, use tape or solder sleeves. Cover wire with protective loom if routing near metal or sharp surfaces.

Good luck.

[sprocket]

I made an assumption that you were wiring up fog lamps based on the switch graphic but improvise as needed.

Also, a 15A fuse is the correct size for a pair of 55W bulbs (typical fog lamp bulbs). If you are using other lights that draw less than 9A, I would size down to a 10A fuse instead. Don't want to oversize your fuse or it won't protect the load.