delay accessory for cold starts

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ngooo

Member - Posts: 41

Joined: January 07, 2004

Location: Canada

Posted: January 22, 2012 at 8:58 PM / IP Logged

alright folks, i went out and purchase a spiral grid battery from canadian tire with 750CCA. Results: starting van with a/c on, drops to 10.1 volts. Starting van with a/c and heated seats, drops to 9.8 volts. So i still have the occasional fail, but not nearly as many as before with the old battery.

I would still like to put a DEI 528T to delay the accessory on start. Looking to accomplish what this gent did:

http://www.youtube.com/watch?v=URM0Lp02Iwk

If anyone have ideas on how to wire, please let me know. I am going to purchase the 528T.

tedmond

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Joined: January 06, 2007

Location: Ontario, Canada

Posted: January 22, 2012 at 10:01 PM / IP Logged

what speed do you have your blower motor? i always tell customers to put it on low or mid at most.

Ted

2nd Year Tier 1 Medical School

Still installing as a hobby...pays for groceries

Compustar Expert

offroadzj

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Joined: June 03, 2005

Location: New York, United States

Posted: January 22, 2012 at 10:15 PM / IP Logged

That still doesn't sound right. The battery voltage should not be dropping that much on start. Are you checking the voltage drop during remote start or with the key? And are you checking it at the battery or at the unit? Have you tried running a temporary 12v constant and ground from the battery with a larger gauge (12awg) wire to see if it still drops? You can simply run it outside the car just for the test and then if it works deal with going through the firewall.

If it does in fact just draw that much power and the battery is making it better, then you can try changing the settings to see if you can make the accessory wait until after the vehicle has started to kick on.

Kenny

Owner / Technician

KKD Garage LLC

Albany, NY 12205

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: January 23, 2012 at 2:09 AM / IP Logged

OK, here goes.

You have 2 ACC wires, find the one that controls the HVAC.

One might control the HVAC, wipers and washers.

The other just the radio.

You don't even need the second any way so lets call the one you need ACC 1.

Cut this wire.

With the 528t join the ignition side to ORANGE.

Car side to YELLOW.

12v+ to RED.

BLACK to ground.

BLACK/ WHITE to your status output wire or factory disarm if the unit has one.*

BROWN don't use.

Set the timer to about 15 seconds, you can tell by watching the internal relay contacts move.

*The second method is safer but whichever you use diode inline, band towards the R/S.

Just a thought but are running an amplified audio system? If so definitely try disconnecting ACC 2 from the R/S before you buy a 528t.

ngooo

Member - Posts: 41

Joined: January 07, 2004

Location: Canada

Posted: January 23, 2012 at 6:54 AM / IP Logged

The van is set to auto temp, so the blower kicks in high. I test the at the battery, put my leads in, close the hood, put the meter on the windshield. Get in the van, hit the remote/starter while playing with the accessories.

OLD Battery: A/C- 9.5 volts, Heated Seats-8.5volts

NEW Battery: A/C-10-.1 volts, Heated Seats- 9.5 volts

If i turn off the A/C, i have never had a failure. Which i don't mind living with, however, the Mrs, will often forget to turn off the heated seats, and likes the van warm. I believe it is the silly ACC before starting is the real issue here. Wife has an 06 acura TL, with a viper 5902 installed by a DEI dealer. She always leaves the heated seats and auto temp set high, and mentioned she has a few failures as well. Last night, it happened on the TL, and she called. I told her to turn the key to the ACC, turn off the A/C, remove the key, and activate the remote starter, and it worked.

Howie, I have already disconnected the ACC2. For the wiring of the 528T, I have the thick Accessory Output soldered to the ACC1, i should leave that connection alone? Then cut the ACC1, and hook up the yellow/orange wire. Should i be concerned with soldering the smaller gauge yellow/orange wire to the thick ACC1 wire?The viper 5904 does have a -200mA status output that i am not using, so i will connect that to the BLACK/ white wire, do i still need the diode?

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: January 23, 2012 at 7:21 AM / IP Logged

Connect after your join, yes to the diode it's a precaution.

Yellow/Orange? I don't know the year of your vehicle bit neither Directwire for Canada or the US list that colour from 05-11.

ngooo

Member - Posts: 41

Joined: January 07, 2004

Location: Canada

Posted: January 23, 2012 at 7:22 AM / IP Logged

Would it matter if i connect the 528T yellow/orange wires to the point A or point B? delay accessory for cold starts - Page 5 -- posted image.

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: January 23, 2012 at 7:29 AM / IP Logged

No but since there's electronics involved stick to my list, it's proven.

Orange = 87a

Yellow = 30

Brown = 87

Red = 86 or not relevant

Black = 85 or not relevant

BLACK/ white =85 or 86 if you cut the blue loop (don't in this application).

ngooo

Member - Posts: 41

Joined: January 07, 2004

Location: Canada

Posted: January 23, 2012 at 7:37 AM / IP Logged

Howie,

I am going to go by your suggestion, but just wanted to clarify where to tap in. I have a picture with point A and point B.

https://picasaweb.google.com/lh/photo/IwrTupigbCej-d4xrlfCm9kZWJgHhHRQDrpibi5nr7A?feat=directlink

Can you also recommend diode number?

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: January 23, 2012 at 8:02 AM / IP Logged

1n4004.

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