2008 Smart ForTwo W451, 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=131889
Printed Date: May 11, 2025 at 1:54 AM
Topic: 2008 Smart ForTwo W451, Alarm/Remote Start/Stereo Wiring
Posted By: type14
Subject: 2008 Smart ForTwo W451, Alarm/Remote Start/Stereo Wiring
Date Posted: July 26, 2012 at 12:56 PM
Please provide the wiring diagram (stereo and alarm)for a 2008 Smart ForTwo
Replies:
Posted By: shortcircuit161
Date Posted: July 26, 2012 at 3:08 PM
Audio/Mobile Video
WIRE COLOR POLARITY LOCATION
Battery RED / BLUE (+) RADIO HARNESS
Accessory BLACK/ GRAY (+) RADIO HARNESS
Ground BROWN (-) RADIO HARNESS
LF Speaker (+) GREEN
LF Speaker (-) BROWN / GREEN
RF Speaker (+) ORANGE
RF Speaker (-) BROWN / ORANGE
LR Speaker (+) YELLOW
LR Speaker (-) YELLOW/BROWN
RR Speaker (+) BLUE
RR Speaker (-) BLUE/BROWN
Steering Cntrls NO
Speed Cntrl NO
Radio Security OPTIONAL
Security
WIRE COLOR POLARITY LOCATION
Battery RED (+) ON BACK SIDE OF FUSEBOX
ALSO RED / WHITE AND RED / GREEN
Ignition 1 RED / BLACK (+) ON BACK SIDE OF FUSEBOX
Starter 1 VIOLET (+) ON BACK SIDE OF FUSEBOX
All Door Trigger BROWN / BLUE (-) ON BACK SIDE OF FUSEBOX
THIS IS THE DOMELIGHT SUPERVISION WIRE
Domelight Super BROWN / BLUE (-) ON BACK SIDE OF FUSEBOX
Parking Lights GRAY/BLUE (+) ON BACK SIDE OF FUSEBOX
Convenience
WIRE COLOR POLARITY LOCATION
Parking Brake BROWN / BLACK (-) PARKING BRAKE SWITCH
Trnk Release PINK / YELLOW (-) ON BACK SIDE OF FUSEBOX
Remote Start
WIRE COLOR POLARITY LOCATION
Battery RED (+) ON BACK SIDE OF FUSEBOX
ALSO RED / WHITE AND RED / GREEN
Ignition 1 RED / BLACK (+) ON BACK SIDE OF FUSEBOX
Ignition 2 RED / BLUE (+) ON BACK SIDE OF FUSEBOX
Starter 1 VIOLET (+) ON BACK SIDE OF FUSEBOX
Speed Sense GRAY/BLUE (AC) RADIO HARNESS
Parking Lights GRAY/BLUE (+) ON BACK SIDE OF FUSEBOX
Brake Lights BLACK/ WHITE (+) ON BACK SIDE OF FUSEBOX
Reverse Lights YELLOW/RED (+) REVERSE LAMP HARNESS
Horn BLUE (+) ON BACK SIDE OF FUSEBOX
ONLY WORKS WHEN VEHICLE IS ON
Modules
WIRE LOCATION
Module 1 BEHIND RIGHT REAR TRIM PANEL
Doorlocks/Windows
WIRE COLOR POLARITY LOCATION
Power Unlock BLACK/ BLUE (-) ON BACK SIDE OF FUSEBOX
PowerLock PINK (-) ON BACK SIDE OF FUSEBOX
Posted By: shortcircuit161
Date Posted: July 26, 2012 at 3:10 PM
This is an alternate wiring list from Directwire -
12volts red and RED / white + dash fuse box, rear, black 3 pin plug
Starter purple + dash fuse box, rear, white 2 pin plug
Second Starter
Ignition RED / black + dash fuse box, rear, black 2 pin plug
Second Ignition RED / blue + dash fuse box, rear, black 2 pin plug
Third Ignition
Accessory
Second Accessory
Keysense
Power Lock pink (relay isolate from switch) - power lock switch or dash fuse box, rear, white 40 pin plug
Power Unlock BLACK/ blue - power lock switch or dash fuse box, rear, white 40 pin plug
Lock Motor gray / YELLOW 5 wire dash fuse box, rear, brown 8 pin plug
Unlock Motor pink 5 wire dash fuse box, rear, brown 8 pin plug
Parking Lights+ gray/blue + headlight switch or dash fuse box, rear, black 40 pin plug
Parking Lights-
Hazards PURPLE / blue - hazards switch, white plug
Turn Signal(L)
Turn Signal(R)
Reverse Light yellow/red + left rear taillight, black 6 pin plug
Door Trigger
Dome Supervision BROWN / blue - dash fuse box, rear, white 40 pin plug
Trunk/Hatch Pin
Hood Pin
Trunk/Hatch Release pink / YELLOW - dash fuse box, rear, black 40 pin plug
Power Sliding Door
Factory Alarm Arm
Factory Alarm Disarm
Disarm No Unlock
Tachometer NOT black ac any fuel injector
Wait to start
Brake Wire BLACK/ white + dash fuse box, rear, white 40 pin plug
Parking Brake BROWN / black - dash fuse box, rear, white 40 pin plug
Horn Trigger blue (functions with ignition on only) + dash fuse box, rear, brown 8 pin plug
Memory Seat 1
Memory Seat 2
Memory Seat 3
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