How-to-guides - Understanding auxiliary outputs (part-2)

What next.

Once you determine what the signal is, you will then want to determine what your security system or remote entry signal is set for at the factory.

It is usually a negative.

Some security's systems will have the ability to change the voltage signal from negative to positive.

• If your system only has a negative signal out you can easily convert that negative signal to a positive by using a relay. see relay configurations.

• After making the correct connections you should be able to press the aux button (depending on manufacture) for two to three second and Walla! Instant trunk release!

What do I have?

How to determine what type of relay configuration your vehicle has.

You can verify the type of system used by using a digital test light (for safety to the cars electronics) or a voltage meter. 

You should begin by locating the wire that sends the specific voltage and while unlocking the vehicles doors and locking them you will want to look for the change on your test light.

 In most cases you can find the harness to the power trunk release at the driver kick panel, witch is basically the panel that your left foot "hang" around when driving. Most vehicle kick panels will snap off or will have a screw or two holding it in place. Remove the kick panel to reveal the harness that goes from the vehicle through the door jamb and into the door. Usually you will find the culprit at this harness.

About this circuit:

• This is the simplest and most common of the trunk release circuits.

• It simply sends a negative pulse to the trunk release circuit or B.C.M. (body control module) where it then activates the trunk release motor or solenoid.

• Connect the trunk release wire from the remote entry or security system directly to the trunk release wire.

How to determine if your vehicle has this type: the circuit:

Follow directions on  What do I have?

About this circuit:

• This is the same as above but this type circuit is used when the vehicles trunk release trigger wire requires a (+) positive voltage to activate the trunk pop feature

• The remote entry or security system sends a positive pulse to the trunk release circuit or B.C.M. (body control module) where it then activates the trunk release motor or solenoid.

• Connect the trunk release wire from the remote entry or security system directly to the trunk release wire.

• Most remote entry and security systems will have the option to send a negative or positive voltage out. Be sure to change this setting on the remote entry before wiring

• If your remote entry does not have the selectable positive or negative it will most likely be a negative. use the circuit below to convert the negative voltage to a positive voltage. See Positive pulse with relay.

How to determine if your vehicle has this type: the circuit:

Follow directions on  What do I have?

Negative pulse with relay.

About this circuit:

• This circuit is used when the vehicles trunk release trigger wire requires a lager amount of (negative pulse) current than what the remote entry or security system is capable of producing.

This may occur if:

• You are unable to find the (low current), trunk release wire and will be sending the correct voltage directly to the trunk release motor,

• The vehicles trunk release trigger wire requires more current than your remote entry or security system will allow or supply.

How to determine if this pertains to my system?

• If you connected the wire to the trunk release wire of the vehicle and you get no response, try connecting the correct voltage either positive or negative (witch ever you determine it would be) directly to the trunk release trigger wire from either a good negative ground or positive wire such as the (+) positive wire used to power the remote entry module.

• If it activates the trunk at that point you should use this circuit as the remote module is not capable of sending enough current to do the job.

How to determine if your vehicle has this type: the circuit?

Follow directions on  What do I have?

Positive pulse with relay.

About this circuit:

• This circuit is used when the vehicles trunk release trigger wire requires a lager amount of (positive pulse) current than what the remote entry or security system is capable of producing.

This may occur if:

• You are unable to find the (low current), trunk release wire and will be sending the correct voltage directly to the trunk release motor,

• The vehicles trunk release trigger wire requires more current than your remote entry or security system will allow or supply.

How to determine if this pertains to my system?

• If you connected the wire to the trunk release wire of the vehicle and you get no response, try connecting the correct voltage either positive or negative (witch ever you determine it would be) directly to the trunk release trigger wire from either a good negative ground or positive wire such as the (+) positive wire used to power the remote entry module.

• If it activates the trunk at that point you should use this circuit as the remote module is not capable of sending enough current to do the job.

How to determine if your vehicle has this type: the circuit?

Follow directions on  What do I have?

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Auxiliary outputs