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2003 Dodge Ram 2500 Diesel al/rm st

Home / the12volt's Install Bay / Car Security and Convenience / 2003 Dodge Ram 2500 Diesel al/rm st (Topic Closed Topic Closed)
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J.T. corbitt 
Member - Posts: 2
Member spacespace
Joined: November 27, 2004
Location: United States
Posted: November 29, 2004 at 9:48 AM / IP Logged  

I am trying to install a Audiovox Prestige 786 alarm and remote start in this vehicle.  I have found several wiring color codes bu most conflict on some of the wires on the truck.

The Glow Plug wire location.  Is it on the ECM on the lower driver side of the engine or on the PCM on the passegner firewall?

The Tach wire location.  Is it on the PCM and what location? 

The wires in the driver kick panel for the door locks don't even resemle the colors that I found at Direct Wire.

Last but not least, I can't find a door trigger wire for the driver's door.

Any help or advise would be great

monster57 
Member - Posts: 3
Member spacespace
Joined: August 20, 2004
Posted: November 29, 2004 at 10:26 AM / IP Logged  
it is on the lower driver side of the motor from what i recall there are 2 sets of wires it is the front one. looks like a steel box on the side of the motor can reach it from under the car better.  The door trigger is lock and unlock on one wire u have to use resistors try whatever directed says get a couple extra try it cant damage it.
monster57 
Member - Posts: 3
Member spacespace
Joined: August 20, 2004
Posted: November 29, 2004 at 10:29 AM / IP Logged  
oh btw u dont need a relay on the door trigger
J.T. corbitt 
Member - Posts: 2
Member spacespace
Joined: November 27, 2004
Location: United States
Posted: November 30, 2004 at 1:37 AM / IP Logged  

Quick put the fire out!!!

I wired everything in.  Although several opinions are out there about the tach wire, I wired it to the PCM, ORANGE / black, after testing it with a DMM and the engine running.  This was the major wire that I still needed to hook up today.  Now I have the following troubles at the dash.

ABS and Brake lights-On

Air Bag Light- On at start then off for about 2 seconds then on again

Speedometer not working. Cruise and Door auto locks not engaging (may be from speedometer not working)

No A/C the at the button or heated mirrors.  The level control is also out.  I know that the heated mirrors worked this morning prior to connecting the tach wire. WHAT HAVE I DONE?

Velocity Motors 
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Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 08, 2002
Location: Manitoba, Canada
Posted: November 30, 2004 at 1:59 AM / IP Logged  

There are several IGN & ACC wires that all need to be powered up during remote start that you probably did not hook up yet. Make sure that yo have these hooked up in the ignition switch harness:

12V|pnk/blk & RED / wht   |+  |ignition harness           

STARTER|small yellow              |+  |ignition harness           
IGNITION|blue     (16 awg)   |+  |ignition harness           
SECOND IGNITION|small RED / white    |+  |ignition harness           
ACCESSORY|green       |+  |ignition harness           
SECOND ACCESSORY|small orange  |+  |ignition harness           

As far as the speedometer, remove that connection from the PCM and find a YELLOW/WHITE wire on the driver's side of the cylinder head in a 4 wire gray connector.

Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
jaurora 
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Joined: January 16, 2004
Location: United States
Posted: November 30, 2004 at 9:16 AM / IP Logged  

Also on that alarm the GREEN/ YELLOW wire (GLOW PLUG) is not necessary. The unit needsto be programed from gas to diesel and change the setting in the program mode for either a 10,15,20 second warmup before the truck starts. All this can be found in the remote start programing portion of the manual.

Remote Starter  Wiring Colors and Notes

Function

 

Vehicle  Color

Location

Start:

 

YELLOW

IGNITION SWITCH HARNESS

Ignition  #1:

 

BLUE (16 AWG)

IGNITION SWITCH HARNESS

Ignition #2:

 

RED

IGNITION SWITCH HARNESS

Ignition  #3:

 

GREEN & ORANGE (2 WIRES)

IGNITION SWITCH HARNESS

Accessory:

 

BLACK/ WHITE & BLUE (2 WIRES)

IGNITION SWITCH HARNESS

Brake  Light:

 

WHITE/ TAN

AT SWITCH ABOVE BRAKE PEDAL

Tach  Signal:

 

TAN/RED

AT IGNITION COIL

Parking Lights:

 

PURPLE / YELLOW

HEADLIGHT SWITCH*

Headlights:

 

PURPLE / YELLOW

HEADLIGHT SWITCH *

Diesel  Glow Plug:

 

ORANGE / Black

Powertrain Control Module***

Clutch  Bypass Wire:

 

Notes:

 * This Is A Single Wire System. Parking Lights Need To See A Ground (-) Through A 330 Ohm Resistor. Headlights Need To See A Ground (-) Through A 700 Ohm Resistor. ** Diesel Vehicles - ORANGE / Black Wait to Start; Tach Wire Is Gray/Black. Both Wires Are Located In A Black Connector Center Top Of Fire Wall. There Are Two Black Connectors, The Correct One Does Not Have A White Insert. *** Tach can also be located at pin 74 behind instrument cluster

MECP certified (If it really means anything)
Jeremy
partyguy 
Member - Posts: 30
Member spacespace
Joined: December 12, 2002
Location: Canada
Posted: November 30, 2004 at 5:23 PM / IP Logged  
what about the disarm resistance got one?
Velocity Motors 
Moderator - Posts: 12,488
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 08, 2002
Location: Manitoba, Canada
Posted: November 30, 2004 at 6:56 PM / IP Logged  
Arm/lock is negative trigger thru a 2K ohm resistor. Disarm/unlock is negative trigger thru a 480 ohm resistor. Single pulse will do disarm without unlocking the doors. Unlock requires a double pulse. MUST use relays.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

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