1999 dodge caravan tach sense
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=62328
Printed Date: May 10, 2024 at 9:56 AM
Topic: 1999 dodge caravan tach sense
Posted By: Scott99
Subject: 1999 dodge caravan tach sense
Date Posted: September 07, 2005 at 9:38 AM
Okay, so three years ago, I got a car starter for my wife and installed the whole thing, but couldn't figure out a way to get to the tach sense wire on a 1999 grand caravan. The thing has been sitting in the basement since. With winter approaching, I thought that maybe I should take another whack at it. Anyone have any ideas on how to tap into that without tearing apart most of the engine?
Scott Tomashek
Replies:
Posted By: Velocity Motors
Date Posted: September 07, 2005 at 11:27 AM
The tach wire is on the side of the PCM module located at the distributor where the plug wires are. The wire color is gray or gray/red
-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: mo12v
Date Posted: September 07, 2005 at 12:36 PM
| Tach Signal | GRAY & D BLUE/TAN | AT POWERTRAIN CONTROL MODULE
(2.4L) * |
* Each Wire Listed Above Is A 2 Cylinder Signal.
3.0L Tach Wire Is GRAY/RED At Powertrain Control Module (PCM). 3.3L & 3.8L Tach Wire Is GRAY/RED, D BLUE/TAN And RED / YELLOW At PCM (Each Wire Is A 2 Cylinder Signal).
PCM On All Models Located On Driver Fenderwell.------------- MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: Scott99
Date Posted: September 12, 2005 at 8:34 PM
Newbie is probably too generous a description for my car abilities. I know a ton about audio, but very little about cars. So I know that the distributor connects to the spark plug wires but that's about it. How do I recognize the PCM (what is it really?).
Scott
Posted By: mo12v
Date Posted: September 12, 2005 at 8:56 PM
P C M ............Powertrain Control Module..........
-------------
MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: Velocity Motors
Date Posted: September 12, 2005 at 9:54 PM
DF5_tach.jpg Hope this helps. Cant' get any more specific than this  ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: Scott99
Date Posted: September 13, 2005 at 11:00 AM
Thanks a lot for the help. I'll hopefully be able to get at this today. The picture really is a big plus.
Scott
Posted By: Scott99
Date Posted: September 14, 2005 at 10:42 AM
Thanks to your help I was able to get the starter to work. I have the relays all made up for the locks, but I can't track down the WHITE/ green for them. I'm looking in the grey wire blocks under the dash, to the left of the steering cloumn. In other posts people mentioned "junction block two #217" and I'm trying to figure out what that means. The terminals on the grey blocks go up to 36, and the wires in terminal two are not white /dark green.
Help!
Scott
Posted By: iskidoo
Date Posted: September 14, 2005 at 10:50 AM
Power Lock - WHITE/ green - left plug at bottom of fuse box under cover (1 of 3)
Power Unlock - same wire
Notes: Use relays and set up for negative trigger. Place a 4020 ohm resistor inline on the lock output, and a 665 ohm resistor inline on the unlock output. If you do not have a factory security system use a 1500 ohm for lock and a 250 ohm for unlock.
Detailed wiring info: https://directechs.com/directwire/wire_body.asp?action=select&yr=2754&product=Remote%20Start
Use the top of this diagram:
https://64.85.6.129/extrainfo/diagrams/9732_CARAVAN_CHRYSLER%20MINI%20VAN%2096%20-%2000%20%201%20WIRE%20ALERT%20SHELBY%20UNITS.pdf------------- Steve G
Posted By: Scott99
Date Posted: September 14, 2005 at 11:30 AM
Got it. Thanks for all the help.
Posted By: Scott99
Date Posted: October 25, 2005 at 8:07 AM
Okay, so I thought I had it all working when I noticed that for some reason, when the car starts, everything seems fine, but the ventilation system doesn't turn on. It's why I bought the thing, so that the car would be warm and defrosted in the morning. So I figure that I either A: got the wrong wire for the run mode, or B: need to find an additional wire to make this work. Any suggestions?
Posted By: thepencil
Date Posted: October 25, 2005 at 8:54 AM
Accessory BLACK/ white + ignition harness
Any chance you may have miss this wire? Power this wire up will get the fan working in ventilation system. ------------- Be careful whose advice you buy, but be patient with those who supply it.
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