1988 cavalier z24, viper 5901

Hi all

I have a 1998 chevy cavalier z24 with remote keyless entry and I am going to install a viper 5900,  I have just two questions, can I hook into the lock and unlock wires and not use a relay? And the trunk I gather so far I do need a relay just not sure how to hook it up,  I did get a wire diagram from this site and the install guide shows to hook up the red and white wire (viper) to 85 and12v constant to 86 the part I don't understand is in the book they say to hook the switched trunk release wire to 30 and  (+)12v if (+) switched or(-) ground if (-) to 87 is this right? And if so how do I hook it up; do I cut the trunk wire and connect it 30 and the other side of the trunk wire to 87? the trunk wire is + according the the diagram.

Thanks!!

gregbbb wrote:

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I have a 1998 chevy cavalier z24 with remote keyless entry and I am going to install a viper 5900,  I have just two questions, can I hook into the lock and unlock wires and not use a relay?

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Yes. That vehicle with K/E is already relay driven. It is a +12v activation circuit.

gregbbb wrote:

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And the trunk I gather so far I do need a relay just not sure how to hook it up,  I did get a wire diagram from this site and the install guide shows to hook up the red and white wire (viper) to 85 and12v constant to 86 the part I don't understand is in the book they say to hook the switched trunk release wire to 30 and  (+)12v if (+) switched or(-) ground if (-) to 87 is this right? And if so how do I hook it up; do I cut the trunk wire and connect it 30 and the other side of the trunk wire to 87? the trunk wire is + according the the diagram.

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• Cut the wire between the switch and solenoid. Preferably a few inches after the switch.
• The switch side of the wire connects to terminal #87a
• The solenoid side of the wire connects to #30.
• Terminal #86 and #87 go to a fused 12v source. This can be obtained from the other side of the switch.
• Terminal #85 connects to the Viper 5900's RED / WHITE wire.

This does not take into consideration using a relay, with coil diode-isolation. You will need to face the band away from the RED / WHITE wire. You will also need a PassLock type by-pass.

I would charge ~$50 above, for parts and labor, not including the by-pass.

Sorry to sound so dumb,  so i can just splice into the door lock wires?  and as far as the trunk i dont have a switch in the car to pop the trunk just  the stock key fob remote so does that mean i have to run a wire's to the trunk? and why do i need to power up two #86 and #87?

Thanks!!

gregbbb wrote:

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.. so i can just splice into the door lock wires?

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Regarding my previous post on colors? Yes.

gregbbb wrote:

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.. and as far as the trunk i dont have a switch in the car to pop the trunk just  the stock key fob remote

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gregbbb wrote:

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.. so does that mean i have to run a wire's to the trunk?

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No. The above information explains.

gregbbb wrote:

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and why do i need to power up two #86 and #87?

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They provide power for the coil and the solenoid.

To revise:

• Cut the wire between the K/E module and solenoid.
• The K/E side of the wire connects to terminal #87a
• The solenoid side of the wire connects to #30.
• Terminal #86 and #87 go to a fused(~5-7.5 amps) +12v source.
• Terminal #85 connects to the Viper 5900's RED / WHITE wire.
• If you decide to splice instead of cut, insulate #87a.

You must still take into consideration, if using a relay, with coil diode-isolation.

I am so sorry but can you tell me where the FACTORY KEYLESS ENTRY MODULE is?

Thank you !!!

Cant you just splice #30 into the trunks (+) wire and not hook up #87A that way you wouldnt have to cut the trunk wire and you could

still use your factory key fob trunk release?

Thanks

Hi All

I have been looking for the tach wire for a while is there anyone that can help me find it?

I have keyless entry on this car do i have to tap the driver or the pass side wires for the door looks?

As far as the trunk positive wire is the keyless module in the driver kick or the trunk?

Been looking in the trunk no luck the drivers kick has a mudule though is this it?

Thanks!!

I do believe the coil is the on the lower right front of the block

a bit of a pick to get at.

Found the power door locks with the relay velcroed to the side in the pass side,  i supose if i had some help i could have found them in the driver side but lots of wires there look the same!!

now just down to the trunk need some help here....

Thanks

I dont have a switch i have a keyless entry i need to find the modual

Hi

I have a 1998 Chevy cavalier z24 with factory keyless entry.

I am going to be installing a viper 5901 and was just thinking, If I tap into the door lock wires like I was told to do on this site (witch I was going to do on the pass side there is the factory relay on that side dont know if that matters or not) that would be like me sitting in the car ( like i did after the dome light when out) I hit my power lock switch on the door and the dome light's dont come on, when I hit the factory key fob unlock the lights come on.

Is there a way to have the dome light come on when you unlock with the viper like the factory?

Oh and I was going the hook into my door pins and diode isolate for for the green door trigger is this correct?

Thanks!!

Is that what the domelight supervison wire is for?

If so,  I have been reading a bit more and it shows using a relay for the domelight supervion wire,  I just dont know where to hook it up,  to the dome light itself ( dont know if that is + or -) or to the door pin,  and if i hook it up to the door pin  can I do that when I am  hooking the vipers green door trigger up to that wire too? oh and by the way the cavalier door pins are (-) they ground when you open the door.

Thanks

Oh,  and when I tag the cars white and blue wire for the power door locks with the the vipers lock and unlock,  do I need to  diode isolate them as well?    

Thanks 

Yeah,  I know to diode isolate the door trigger's on the car when I hook them up vipers green trigger wire,  I was just wondering if you diode isolate the conections to the door locks to the viper's lock and unlock as well?

Maybe thats what you meant but just checking.

I dont have the manual yet just going off a old one,  the new viper should be here today I found a deal off this site!!

Thanks for your time!!