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03 Mercury Grand Marquis, Alarm/Remote Start/Stereo Wiring

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=16701
Printed Date: March 28, 2024 at 6:08 AM


Topic: 03 Mercury Grand Marquis, Alarm/Remote Start/Stereo Wiring

Posted By: phredman
Subject: 03 Mercury Grand Marquis, Alarm/Remote Start/Stereo Wiring
Date Posted: July 25, 2003 at 8:17 PM

Has anyone installed a remote start on 03 mercury grand marquis? if so,can I get a more detailed wiring diagram on this vehicle? For instance,2 wires act like starter wires,the small gauge RED / lt blue  and the GREEN/ purple ? I cant get the dash to power up too. thanks for any info...




Replies:

Posted By: tjdurham
Date Posted: July 26, 2003 at 12:09 AM
accy wires grey / YELLOW and pink/black and black /green all 3 need powering up relay isolate them though your starter wire should be white /pink if not there its the red /blue

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tj




Posted By: ViperATC5
Date Posted: July 26, 2003 at 5:20 PM
|       ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        |
|              12V|brown & lt. green   |+ |ignition harness            |
|          STARTER|RED / lt. blue        |+ |ignition harness            |
|        IGNITION|WHITE/ yellow        |+ |ignition harness            |
|        ACCESSORY|gry/yel & blk/lt grn|+ |ignition harness            |
| SECOND ACCESSORY|pink/black          |+ |ignition harness            |
|       POWER LOCK|pink / YELLOW        |*1 |driver kick, door harness   |
|     POWER UNLOCK|pink/lt. green      |*1 |driver kick, door harness   |
|       LOCK MOTOR|pink/black          |5wi|driver kick, door harness   |
|     UNLOCK MOTOR|RED / orange          |5wi|driver door motor in door   |
|    DISARM DEFEAT|pink/orange        |5wi|driver kick, harness to rear|
| PARKING LIGHTS +|brown               |   |pin 4, blk plug @ LCM *2    |
| PARKING LIGHTS -|WHITE/ black        |   |pin 13, gry 16P plug @ LCM*2|
|       HEADLIGHTS|RED / yellow          |- |pin 10, gry 16P plug @ LCM*2|
|     DOOR TRIGGER|dk blue & blk/org *3|- |LCM *2                      |
| DOME SUPERVISION|use door trigger    |   |                            |
| TRUNK/HATCH PIN|BROWN / white        |- |pin 5, gry 16P plug @ LCM *2|
|TRNK/HTCH RELEASE|purple / YELLOW *4    |5wi|driver kick, harness to rear|
|       TACHOMETER|NOT red or RED / grn |   |any ignit. coil or injector |
|      SPEED SENSE|gray/black          |   |pin 5, gry 22P plug @ LCM *2|
|       BRAKE WIRE|lt. green           |+ |brake pedal switch          |
|     HORN TRIGGER|dk. blue            |- |steering column             |
|           WIPERS|dk. blue/orange     |- |steering column             |
| LF WINDOW UP/DN|wht/blk - yellow    |A |driver window switch        |
| RF WINDOW UP/DN|wht/yel - tan/lt blu|A |driver kick panel           |
| LR WINDOW UP/DN|gry/org - yel/lt blu|A |driver kick panel           |
| RR WINDOW UP/DN|yel/blk - RED / blk   |A |driver kick panel           |
| SUN RF OPN/CLOSE|dk green - lt green |A |sun roof motor              |
|   SUN ROOF LIMIT|                    |- |sun roof motor              |
|        RADIO 12V|PURPLE / lt. blue     |+ |radio harness               |
|     RADIO GROUND|BLACK/ lt. green     |- |radio harness               |
|     RADIO SWITCH|yellow/black        |+ |radio harness               |
| RADIO ILLUMINATE|lt. blu/red (dimmer)|+ |radio harness               |
|       LF SPEAKER|org/lt grn-lt blu/wh|   |radio harness               |
|       RF SPEAKER|wht/lt grn - grn/org|   |radio harness               |
|       LR SPEAKER|gry/lt blu - tan/yel|   |radio harness               |
|       RR SPEAKER|org/red - brn/pnk   |   |radio harness               |


Notes:
NOTE: This vehicle is equipped with PATS (Passive Anti-Theft System). Use Directed module 555U to bypass during remote start. *1 Without keyless entry the door locks are 5wi (reverse polarity). With keyless entry they are positive trigger. *2 The LCM (Lighting Control Module) is to the right of the steering column. *3 Blue is the driver door trigger wire, it is in pin 11, gray 22 pin plug. BLACK/ orange is the three passenger doors, it is in pin 11, gray 16 pin plug. Use both wires and diode isolate each. *4 The fuel door release is WHITE/ pink (+) in the driver kick, harness to rear.





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