2004 Odyssey Wire Diagram?

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=41229
Printed Date: November 04, 2025 at 5:16 AM

Topic: 2004 Odyssey Wire Diagram?

Posted By: Domperignon
Subject: 2004 Odyssey Wire Diagram?
Date Posted: October 19, 2004 at 2:07 PM

Please Help!! I am trying to install an alarm with remote starter. Does anyone have a wire diagram for a 2004 honda odyssey??

Thanks in Advance,

Dom

Replies:

Posted By: draasch
Date Posted: October 19, 2004 at 3:05 PM

here is the info for the 03...double check the info with a meter:

Make:   Honda
Model: Odyssey
Year:    2003
This Database Was Last Updated On:    9/16/2004
Index #: 8930

Alarm
Constant 12 volts WHITE IGNITION SWITCH HARNESS
Ignition 12 volts BLACK / YELLOW IGNITION SWITCH HARNESS
Starter BLACK/ WHITE IGNITION SWITCH HARNESS
Dome Light BLACK/ WHITE (-) 24 PIN BLUE CONN BEHIND DRIVE DASH
Trunk Pin Switch ORANGE (-) DRIVER KICK PANEL 21 PIN WHITE CONN
Parking Lamp RED / BLACK (+) 10 PIN GREEN CONN DRIVER FUSE BOX
Power Lock BLACK/ WHITE DRIVER KICK PANEL (LX MODEL) * #201
Power Unlock GREEN/ RED DRIVER KICK PANEL (LX MODEL) *

* EX MODEL:LOCK-BLACK/ ORANGE, UNLOCK-BLUE/ORANGE At 20 Pin GREEN Connector At Passenger Fuse/Relay Box In Passenger Kick Panel Negative Pulse Type #201 #201- See Negative Pulse Doorlock Circuit Diagram.

Remote Start
Tach Signal BLUE 2 PIN CONN LEFT SIDE OF ENGINE #239
Ignition #2 YELLOW IGNITION SWITCH HARNESS
Ignition #3 N/A
Accessory WHITE/ BLACK IGNITION SWITCH HARNESS
Neutral Safety GRAY (-) AT SWITCH ON TRANSMISSION *
Brake Light WHITE/ BLACK (+) SWITCH ABOVE BRAKE PEDAL
Reverse Light WHITE (-) 18 PIN GREEN CONN.DR UNDER DASH RELAY
Rear Window Defrost BROWN / YELLOW (-) BACK OF CLIMATE CONTROL PANEL (LX) **

* Also BLUE/WHITE (-) 25 Pin GREY Conn Of PCM Behind Lower Heater Cover ** EX Model:Behind Heater Control Panel #239- See Immobilizer Bypass Circuit Diagram

-------------
Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt

Posted By: Teken
Date Posted: October 19, 2004 at 6:28 PM

DIRECTWIRE™ WIRING INFORMATION - HONDA / ODYSSEY / 2004 / Remote Start

12volts white (50A)   +   ignition harness
Starter BLACK/ white   +   ignition harness
Second Starter N/A
Ignition BLACK / YELLOW   +   ignition harness
Second Ignition N/A
Third Ignition N/A
Accessory yellow   +   ignition harness
Second Accessory WHITE/ black   +   ignition harness
Keysense blue/white   -   ignition harness
Power Lock BLACK/ blue   -   passenger fuse box
Notes: Found in a 20 pin plug on LX models, and a 3 pin plug on EX models.

Meter the wire while turning the key in the passenger door key cylinder.
Power Unlock orange   -   passenger fuse box
Notes: Found in a 20 pin plug on LX models, and a 3 pin plug on EX models.

Meter the wire while turning the key in the passenger door key cylinder.
Lock Motor WHITE/ red   5wi driver fuse box, 18 pin plug
Unlock Motor lt. GREEN/ red   5wi driver fuse box, 18 pin plug
Parking Lights+ RED / black   +   driver fuse box, 10 pin plug
Parking Lights- RED / yellow (EX model only)   -   headlight switch
Hazards same as turn signal wires
Turn Signal(L) GREEN/ blue   +   steering column
Turn Signal(R) GREEN/ YELLOW   +   steering column
Reverse Light GREEN/ black   +   driver fuse box, 10 pin plug
Door Trigger BLACK/ white   -   interior light switch on center dash
Dome Supervision lt. green   -   interior light switch on center dash
Trunk/Hatch Pin common with door trigger wire
Hood Pin yellow/red (LX), yellow (EX)   -   keyless (LX), driver mux unit (EX)
Notes: The keyless/security control unit is to the right of the steering column on the LX models.

The driver multiplex control unit is attached to the driver fuse box on the EX models.
Trunk/Hatch Release N/A
Power Sliding Door see DirectFax document 1085
Factory Alarm Arm arms with lock (EX model only)
Factory Alarm Disarm disarms with unlock (EX only)
Disarm No Unlock BLACK/ red to blue (EX only)   -   driver door module in door
Tachometer blue   ac   test tachometer connector
Notes: The test tachometer connector is a 2 pin plug above the brake master cylinder.
Wait to start N/A
Brake Wire WHITE/ black   +   brake pedal switch
Parking Brake GREEN/ red   -   parking brake switch
Horn Trigger lt. GREEN/ blue   -   steering column
Memory Seat 1 N/A
Memory Seat 2 N/A
Memory Seat 3 N/A
Immobilizer Bypass Module: Required: Yes Type: Transponder Part #: 555H, 556U, or 555U
Notes: N/A


This wiring information is being provided free of charge on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it using a digital multimeter.

Posted By: Teken
Date Posted: October 19, 2004 at 6:30 PM

Honda

Odyssey

2003-2004

Remote Starter Wiring Colors and Notes

Function
   Vehicle Color
Location

Start:
   BLACK/ White (+)
Ignition switch harness

Ignition #1:
   BLACK / YELLOW (+)
Ignition switch harness*

Ignition #2:
   Yellow (+)
Ignition switch harness

Ignition #3:
   N/A
Ignition switch harness

Accessory:
   WHITE/ Black (+)
Ignition switch harness

Brake Light:
   WHITE/ Black (+)
Brake pedal switch

Tach Signal:
   Blue (AC)
Tach test connector**

Parking Lights:
   RED / Black (+)
10 pin harness at the bottom of the fuse box

Headlights:
   N/A

OEM Alarm Disarm:
   Blue (-)
Drivers door module inside the door

OEM Alarm Arm:
   N/A

Diesel Glow Plug:
   N/A

Clutch Bypass Wire:
   N/A

Notes:
   *This vehicle is equipped with a Transponder Anti-Theft system. Use Universal Alarm Bypass Module part # 2x402 where X can be any number. You may also use Vehicle Specifit Bypass Module part # 23551. **The tach test connector is a 2 pin plug above the brake master cylinder.

--------------------------------------------------------------------------------

Honda

Odyssey

2003-2004

Alarm and Keyless Entry Wiring Colors and Notes

Function
   Vehicle Color
Location

Constant +12 Volts:
   White (+)
Ignition switch harness

Starter Kill:
   BLACK/ White (+)
Ignition switch harness

Ignition +12 Volts:
   BLACK / YELLOW (+)
Ignition switch harness*

Dome Lights/Superv:
   Lt.Green (-)
Domelight on/off switch

OEM Horn:
   Lt.GREEN/ Blue (-)
Steering column harness

Power Lock:
   BLACK/ White (-)
Green plug at the bottom of the fuse box**

Power Unlock:
   Gree/Red (-)
Green plug at the bottom of the fuse box

Trunk Release:
   N/A

Alarm Input Wire:
   Lt.Green (-)
Domelight on/off switch

Notes:
**See Note #201 Negative Trigger Door Locks

Posted By: Teken
Date Posted: October 19, 2004 at 6:31 PM

ODYSSEY 2003-2004
WIRE COLORS LOCATION
12 VOLTS CONSTANT WHITE IGNITION SWITCH HARNESS
IGNITION 1 BLACK / YELLOW IGNITION SWITCH HARNESS
ACCESSORY /HEATER BLOWER 1 YELLOW IGNITION SWITCH HARNESS
STARTER BLACK/ WHITE IGNITION SWITCH HARNESS
PARKING LIGHTS ( + ) RED / BLACK PLUG LEFT OF STEERING COLUMN
DOME LIGHT BLACK/ WHITE ( - ) ALARM PLUG RIGHT OF STEER COLUMN
POWER DOOR LOCK BLACK/ WHITE FUSE BOX DR KICK PANEL (TYPE B)
POWER DOOR UNLOCK DK. GREEN/ RED (TYPE B)
TACH SENSOR BLUE AT COIL
BRAKE GREEN / WHITE ( + ) SWITCH ABOVE BRAKE PEDAL
HORN BLUE/RED ( - ) RIGHT OF STEERING COLUMN AT RELAY
FACTORY DISARM BLUE ( - ) MODULE IN DRIVER'S DOOR
FACTORY ANTI-THEFT TRANSPONDER 791 REQUIRED