NISSAN MAXIMA 1990 WIRING COLOR CODES
                                A collection of Ted Murphy 
    " IN DEDICATION TO THOSE WHO HELPED HIM SUCESSFULLY INSTALL A 
                   SECURITY SYSTEM ON HIS CAR! "




12 VOLTS CONSTANT : WHITE or WHITE/RED         ( IGNITION HARNESS)

IGNITION          : WHITE/GREEN or BLACK/WHITE ( IGNITION HARNESS)

STARTER 1         : WHITE/BLUE or BLACK/YELLOW ( IGNITION HARNESS)

COLD START        : BLACK/GREEN or GREEN/RED   ( IGNITION HARNESS)

ACCESSORY         : BLUE or WHITE/RED          ( IGNITION HARNESS)

TACH WIRE         : GREEN/BLACK/SILVER ( THE 2ND CONNECTORS, PIN 7,
AT ECCS , BEHIND THE ASHTRAY)

OEM ARLARM ARM    : LIGHT GREEN/WHITE(-) ( SECURITY CONTROL MODULE
AT THE LEFT SIDE OF STEERING COL.)

OEM ARLARM DISARM : LIGHT GREEN/BLACK(-) ( SECURITY CONTROL MODULE
AT THE LEFT SIDE OF STEERING COL.)

DOME LIGHT(same as DOOR TRIGGER): ORANGE/BLACK(-) ( DRIVER KICK PNL.)

EXTERIOR LIGHTS : RED/YELLOW(+) (SMALL GAUGE WIRE AT THE HARNESS 
ACROSS STEERING COL.)

HEAD LIGHTS (+) : RED/YELLOW (DRIVER SIDE),RED/GREEN(PASS. SIDE)
(SMALL GAUGE WIRE AT THE HARNESS ACROSS STEERING COL.)

BRAKE LIGHT :RED/WHITE (+) (SWITCH ABOVE BRAKE PEDAL )

TRUNK RELEASE   : BROWN (+) (MEDIUM GAUGE WIRE AT DRIVER KICK PNL.)

POWER LOCK  : GRAY/RED(-)  (SMALL GAUGE WIRE AT DRIVER KICK PNL.)

POWER UNLOCK : LIGHT BLUE(-) (SMALL GAUGE WIRE AT DRIVER KICK PNL.)

OEM HORN  :  BROWN/WHITE (-) (SMALL GAUGE WIRE AT THE HARNESS ACROSS
STEERING COL.)

************************  NOTES   ******************************
* The word " or" means both wires are the same, they are only at
different side of a connector

* If you don't hook up the COLD START wire you won't be able to 
remote start the car when the engine is cold. I would use 2 relays
to wire START WIRE and COLD START wire together with the starter wire
comes from the remote start unit if it has only 1 start wire. Someone
advised me to short both START wire and COLD START wire together and
then hook them to the STARTER wire at the remote start unit, but I did
not do this way for 2 reasons: first, I may overload the remote start
unit, second, Nissan made these 2 wires separated for a certain reason,
we should not change its design.( if you try the 2nd way, let me know
if everything OK).

* I used 2 diodes(1A) connecting cathodes together, anodes 1 for door
unlock wire, 1 for OEM arlarm disarm wire and then hook the door unlock
wire from the aftermarket arlarm unit to the cathodes side after wired
this wire thru a relay for overload protection.

* I used a 12V DPDT relay ( rated 5A at 125 VAC ) to power both head-
-light wires(driver and passenger sides). I don't know why Nissan made
these 2 wires separated but I rather keep it that way instead of short
both wires together ( if anyone know please enlight me )

* I used a 12V SPDT relay to change the polarity of the trunk release
wire at the arlarm unit from (-) to (+) and to protect the arlarm unit
from being overloaded.

* I heard that models from 89 to 94 have similar wiring color codes.

ANYWAY YOU MUST USE YOUR KNOWDLEGE AND COMMON SENSE , ABOVE INFORMATION
IS FOR REFFERENCE ONLY. I DISCLAIM ANY LIABILITY REGARDING TO ABOVE 
INFORMATION.