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2003 Dodge Ram

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=16819
Printed Date: May 12, 2024 at 7:56 PM


Topic: 2003 Dodge Ram

Posted By: malucyk
Subject: 2003 Dodge Ram
Date Posted: July 29, 2003 at 12:42 AM

Can i get a wiring diagram for a 2003 Dodge Ram Hemi.

Thanks Matt



Replies:

Posted By: apursell
Date Posted: July 30, 2003 at 12:26 AM

ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        |
|              12V|pnk/blk & RED / wht   |+  |ignition harness            |
|          STARTER|yellow              |+  |ignition harness            |
|         IGNITION|blue     (16 awg)   |+  |ignition harness            |
|  SECOND IGNITION|red or RED / wht      |+  |ignition harness            |
|        ACCESSORY|green & orange      |+  |ignition harness            |
| SECOND ACCESSORY|blue & blk/wht *7   |+  |ignition harness            |
|       POWER LOCK|WHITE/ green *1      |-  |driver kick panel           |
|     POWER UNLOCK|same wire           |   |                            |
|       LOCK MOTOR|tan/pnk or tan/blk  |   |driver kick panel           |
|     UNLOCK MOTOR|blue                |   |driver kick panel           |
|    DISARM DEFEAT|tan/white           |   |passenger kick panel        |
| PARKING LIGHTS +|BLACK / YELLOW        |   |relay under hood at pwr ctr |
| PARKING LIGHTS -|purple / YELLOW *2    |   |headlight switch            |
|       HEADLIGHTS|purple / YELLOW *2    |-  |headlight switch            |
|     DOOR TRIGGER|*3                  |-  |*3                          |
| DOME SUPERVISION|use door trigger    |   |                            |
|  FCTRY ALARM ARM|lt GREEN/ orange *4  |-  |driver kick panel           |
|FCTRY ALRM DISARM|same wire           |   |                            |
| DISARM NO UNLOCK|same wire           |   |                            |
|       TACHOMETER|NOT GREEN/ orange *8 |   |ign coil, coil pac, injector|
|      SPEED SENSE|WHITE/ orange        |   |wht conn. 2, pin 27 @ PCM *5|
|       BRAKE WIRE|WHITE/ tan           |+  |brake pedal switch          |
|     HORN TRIGGER|BLACK/ red           |-  |steering column             |
|           WIPERS|brn/wht(L),rd/yel(H)|+  |wiper motor                 |
|  LF WINDOW UP/DN|lt blue - white     |A  |driver window switch        |
|  RF WINDOW UP/DN|brn/wht - pur/wht   |A  |driver kick panel           |
|  LR WINDOW UP/DN|RED / blk - blu/wht   |A  |driver kick panel           |
|  RR WINDOW UP/DN|grn/wht - gry/blk   |A  |driver kick panel           |
|        RADIO 12V|pink                |+  |radio                       |
|     RADIO GROUND|BLACK/ green         |-  |radio                       |
|     RADIO SWITCH|BROWN / red           |+  |radio                       |
| RADIO ILLUMINATE|ORANGE / blue (dimmer)|+  |radio                       |
|       LF SPEAKER|lt grn/rd-lt grn/grn|   |radio or amplifier *6       |
|       RF SPEAKER|lt blu/pu-lt blu/blk|   |radio or amplifier *6       |
|       LR SPEAKER|wht/red - wht/blk   |   |radio or amplifier *6       |
|       RR SPEAKER|tan/pur - tan/blk   |   |radio or amplifier *6       |

Notes:
NOTE: Chrysler vehicles that use a gray ignition key have an immobilizer system that needs to be bypassed when remote starting. Use DEI part number 555C or 555U.  *1 Lock requires a negative trigger thru a 820 ohm resistor. Unlock requires a negative trigger thru a 330 ohm resistor. MUST use relays.  *2 Parking lights require a negative trigger thru a 330 or 1.4K ohm resistor. Headlights require a negative trigger thru a 1.8K ohm resistor. There is a rest resistance on the wire, so MUST use a relay to isolate away from the switch.  *3 The LF door trigger is tan, and the LR door is tan/orange or PURPLE / orange. These wires are in the driver kick panel. The RF door trigger is tan/red, and the RR door is tan / YELLOW. These wires are in the passenger kick panel. Use all wires and diode isolate each. See directfax document #1076 for wiring information.  *4 This will also do door locks. 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.  *5 The PCM (Powertrain Control Module) is on the passenger side firewall.  *6 The amplifier is located behind the glove box.  *7 These wires may not be necessary for remote start.  *8 Diesel tach wire use gray/black in the black plug at the PCM.






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