1998 nissan altima remote start issue

Hi, I've been a long time reader on the site, but a first time poster. Usually I can figure stuff out thanks to this site, but now I am really stuck.

I've installed a remote start on a 1998 Nissan Altima. Assesory wire was by-passed like so...

85 - (-) when armed on remote start (orange)
86&87 - constant 12v
30 - accessory wire going to car
87a - accessory wire going to the ignition switch

The car has a second starter wire and it was wired using this diagram.
https://www.velocitymotorsport.com/images/install_notes/108.jpg

Except 86 was going to same wire as 85 on relay above. (-) when armed (orange)

Everything worked perfectly, but because we had the accessory by-pass relay negative coil terminal to (-) when armed, we realized this lets the blower run even when the car is off when the doors are locked. (Arms the system)

So we then disconnected the negative input wire for the second starter wire and accessory by-pass relay and hooked them up to appropriate wires on the "Remote start auxiliary wiring harness" ORANGE and PURLE

Orange is (-) accessory relay trigger
Purple is (-) starter relay trigger

After doing this we remote starter the car and it started to grind, so we stopped it immediately.

We then hooked everything up to how it was before, but now the car cranks when the key is in the "on" position, not start position, but on. Which should not happen.

We are stumped.

Any idea why the car is doing this?

The remote start we used is Viper 591XV

The wire diagram for the car is from Directechs

Any info would be appreciated.

Also, we tried to disconnect one side of relay coil for both relays, and tried starting the car with the key and it did the same thing. It starts to crank when the key is in the "on" position.

Some nissans have a feedback problem and you need to isolate the accessory wire. This Link is to bulldogs website and it mentions this on Note 2. Here is another link to their isolation diagram.

Frank

if you wired the acc isolated to the orange ground when armed then the vehicle is seeing 12v on the acc ALL THE TIME when you have the alarm armed!!!!!!! this could have something to do with your grinding too

it should be wired to the blue/white "ground when running" or "status output"

as for your starting on acc problem, somewhere you have a backfeeding issue. if you put the 1st starter wire back together stock does it still do the same thing with nothing from the alarm connected to it? if it does then you have a problem with your key cylinder, if it doesn't then you have a defective alarm or you have something wired crazy in which case i wouldn't be able to help you with that unless i could see exactly what you did.

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So I think I figured out what it is.

When we disconnected the DEI 500M Relay Satellite For Remote Star the car starts fine with the key.

Then using a multimeter I've found out that on the relay satellite the constant +12, (purple) starter wire, and the (green) starter kill wire all all closed together. This didn't seem right at all so I ohmed out same relay satellite in my car and there was no connection between the three wires.

So we definitely did something it. Could it be like did because we did not diode isolate the ACCESSORY and the STARTER relay outputs coming out of the DEI 500M Relay Satellite when connecting them to ACCESSORY isolation relay and SECOND STARTER relay?

soundnsecurity wrote:

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if you wired the acc isolated to the orange ground when armed then the vehicle is seeing 12v on the acc ALL THE TIME when you have the alarm armed!!!!!!! this could have something to do with your grinding too

it should be wired to the blue/white "ground when running" or "status output"

as for your starting on acc problem, somewhere you have a backfeeding issue. if you put the 1st starter wire back together stock does it still do the same thing with nothing from the alarm connected to it? if it does then you have a problem with your key cylinder, if it doesn't then you have a defective alarm or you have something wired crazy in which case i wouldn't be able to help you with that unless i could see exactly what you did.

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Can we use the orange (-)Accessory relay trigger wire on the 4 wire harness out of the DEI 500M Relay Satellite instead of the blue/white status output wire?

imaxorzz wrote:

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soundnsecurity wrote:

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if you wired the acc isolated to the orange ground when armed then the vehicle is seeing 12v on the acc ALL THE TIME when you have the alarm armed!!!!!!! this could have something to do with your grinding too

it should be wired to the blue/white "ground when running" or "status output"

as for your starting on acc problem, somewhere you have a backfeeding issue. if you put the 1st starter wire back together stock does it still do the same thing with nothing from the alarm connected to it? if it does then you have a problem with your key cylinder, if it doesn't then you have a defective alarm or you have something wired crazy in which case i wouldn't be able to help you with that unless i could see exactly what you did.

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Can we use the orange (-)Accessory relay trigger wire on the 4 wire harness out of the DEI 500M Relay Satellite instead of the blue/white status output wire?

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sure you can. you can use anything you want to activate the relay as long as the finished product behaves like a normal acc wire, on with the key except for during cranking.

so you are saying that the purple starter output wire on your satellite relay harness has 12v on it all the time? if this is true then the relay is somehow stuck closed. you ca bypass it by using the purple - starter output from the same harness you just asked me about. this is normally to make wiring a second starter easier but it behaves like a normal starter wire

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^ I just figured it out and got it working. I decided same as you said that some relay must be stuck on the satellite relay harness so I hit it against my palm a few times, then ohmed it out and it was fine.

So then I wired everything back together and it works now.

Thank you for your help!

i would still bypass it. if it did it once it will do it again and could come back to bite you. would you rather wire a relay or possibly buy another starter sometime down the road?

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We actually bought a new relay pack, so we're good.