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2003 Dodge Caravan Check Engine Light

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=59566
Printed Date: May 19, 2024 at 9:13 AM


Topic: 2003 Dodge Caravan Check Engine Light

Posted By: shadowinfector
Subject: 2003 Dodge Caravan Check Engine Light
Date Posted: July 16, 2005 at 8:32 PM

i just recently finished doing a remote start/ alarm for my customer and the check engine light comes on after engine has been turned on.....both remote start and manually...sumone please help.....and if anyone cud tell me where the fus box is in a Dodge Caravan that would be helpful too....not the one under the hood....if that is the only one...but i doubt it...help!!! thanx in advance



Replies:

Posted By: shadowinfector
Date Posted: July 16, 2005 at 8:39 PM
all starter wires are connected and used 180 ohm resistor on second relay......please reply thanx




Posted By: swamprat323
Date Posted: July 16, 2005 at 8:40 PM
did you hook up the 2nd starter aslo its a negtive trigger though a 180ohm resistor, use a relay.




Posted By: shadowinfector
Date Posted: July 16, 2005 at 10:30 PM
yes i did do that ....and the ignition wire is also connected.... help please




Posted By: iskidoo
Date Posted: July 17, 2005 at 7:52 AM
What brand of alarm are you installing and model. Did you use a diode on the 2nd starter relay?

https://64.85.6.129/extrainfo/diagrams/17044_CARAVAN_CHRYSLER%20MINI%20VAN%20STARTER%202%20DIAGRAM.pdf

Not certain it's needed but maybe that's causing the engine light to come on?




Posted By: Velocity Motors
Date Posted: July 17, 2005 at 10:40 AM

You may have a defective relay or the relay that you installed for the 2nd STARTER is not wired properly. Please post your pin out connections for this relay . Read the posts below more information about your problem.

https://www.the12volt.com/installbay/forum_posts.asp?tid=23459&KW=check+engine+caravan



-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA




Posted By: shadowinfector
Date Posted: July 17, 2005 at 10:32 PM
30- PURPLE / brown (second starter)
85-ground
86- starter out wire from alarm
87a- none
87- 180ohm resisted chassis ground

thas how my second starter relay is hooked up.....im gonna take a look at the car either tom or tuesday
please help me thanx




Posted By: Velocity Motors
Date Posted: July 17, 2005 at 10:43 PM
So your saying that you have the resistor on the wire attached to pin 87 ? Also, if this is an alarm/remote starter, make sure that you have the proper starter wire off the CPU of thte alarm activating the relay. If your using the switch side of the starter disable relay then it will not work. Make sure that you have the motor side triggering the relay.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA




Posted By: shadowinfector
Date Posted: July 17, 2005 at 11:24 PM
im not clear on wut u sed...motor side???? i do have a starter kill relay...but im using the starter wire coming out of the rs/alarm to the second relay also...please replay thanx




Posted By: Velocity Motors
Date Posted: July 18, 2005 at 8:13 AM
When you cut the starter wire to install the starter disable, you have a starter motor side and a starter switch side on the relay. Make sure that your using the starter motor side to engage the second starter relay.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA




Posted By: ds1434
Date Posted: July 18, 2005 at 9:59 PM

here's my .02 cents and read all before thinking too quick and this may not be your cure all but it needs to be corrected and VELOCITY MOTORS you may be right also

and another question?? i'm suprised your brain doesn't have a dedicated relay out second start/ign/access wire that's selectable but it must not so............

you need 85 to GROUND OUT WHEN RUNNING(please read on)

you need 86 to go to (+) starter signal

you need 87 to ground

you need 30 w/ 180 ohms to second starter wire

so you're thinking well this is the same but it's really not

with your setup everytime you're starting the van even with the ign. key and no remote start your relay you have installed for the second starter wire is still energizing and putting the resistance on the wire AGAIN along with the resistance through the ign. switch

that's why you need 85 to GROUND OUT WHEN RUNNING so it only energizes when you remote start instead of all the time

now i wouldn't see why that would illuminate the CEL but I've seen more crazy things happen installing remote starts

oh and if you're already using the ground out when running to trigger your bypass module for the sentry key just branch the ground out off into two and diode isolate both with the bands facing the brain and you'll have one for the second starter relay and the bypass module you're using if any at all

well hope this helps and hope it doesn't confuse you but between us all we should be able to get your customer's car fixed up oh and what I've did on pretty much any Chrylser product in the past is just disconnet the bat. for about fifteen min. to turn off the CEL with small problems like you're having



-------------
TechHead




Posted By: shadowinfector
Date Posted: July 27, 2005 at 3:33 PM
thanx guys for all help....but the customer told me the engine light went off...





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