2006 dodge caravan rke

I have a 2006 Dodge Caravan with OEM power locks but no power sliding door or hatch. Also no Sentry Key. I have a DE 712t kit that has been here forever I need to install but have ran into a problem on the door lock wiring which is a mux system. Is there an optional interface to go with this kit or a way I can make up something on site to get this working? Thanks for any advice and help! Regards, Wayne Thomas

If the 712 has 2 lock wires you will need relays to drive the resistors.

I quote:-"Lock is negative trigger thru a 5.3K ohm resistor. Unlock is negative trigger thru a 2.0K ohm resistor. MUST use relays. The BCM (Body Control Module) is in the driver kick panel near the parking brake. It has 5 plugs in it, one 6 pin plug and four 34 pin plugs. Can also use Directed interface modules".

Thanks for the information ! The resistance values helps consideraby.. now I won't have to measure the switches :) Wayne

One other question I forgot to ask but I think I am correct in my calculations ..Are the resistors supposed to apply the 5.3K resistance between the vehicles lock/unlock ckt to the BCM and chassis ground? And wired to completely isolate that resistance at all times unless the fob lock function is depressed?

Yes, I think. For Lock, the 712T's Lock output pulse will trigger a relay. The relay will connect a chassis ground thru a 5.3K ohm resistor to the vehicles Lock/Unlock wire. For Lock, the 712T's Unlock output pulse will trigger a relay. The relay will connect a chassis ground thru a 2K ohm resistor to the vehicles Lock/Unlock wire. Here is a diagram from Bulldog Security : http://diagrams.marktoonen.nl/DOWNLOADS/17044_CARAVAN_CHRYSLER%20MINI%20VAN%2001%20-%20UP%201%20WIRE%20JBS%20UNITS.pdf The top diagram would be the one to use. ( Please note the diagram has Pin 85 and 86 labels switched and did not use a quenching diode across the relays' coil.)Soldering is fun!

Here are two ways to do it, they are both effectively the same, resistor values and colours vary for different vehicles:- FEF_multiplex_via_relays.bmp 27B_resistive_locks.bmp Sorry, didn't understand your last question, if I did the answer is that the relays effectively isolate the RKE wires from the BCM. Kregg, not talking to me? I emailed you last weekend and you didn't get back to me unless you were busy.

Thanks for all the great info ! I "think" that the 712 has internal door lock relays because I can hear relays operating internally when the fob is pressed so I might be able to do a direct wire without an isolation relay arrangement. The information for the 712 says relays required but if the ckt is a true open when at rest it shouldn't load the vehicles lock/unlock ckt. Thanks again for all the information! Jogged my memory for sure! Wayne

I did say two wires earlier and you never picked up on this. With two wires your lock unlocks will be green and blue. With internal relays the following 6:- Violet Violet/black GREEN/ black WHITE/ black Blue/black and BROWN / black. Your instructions should show you this.

Wiring will then be violet and violet black to a good ground, e.g. bolt to kick panel, remove bolt use a ring terminal and scrape to bare metal under the bolt. WHITE/ black and BROWN / black don't use and insulate. GREEN/ black via resistor LOCK. Blue/black via resistor UNLOCK.