maximaham

iTrader: (1)

Going to install a remote start on my 1998.
This will be my third time installing a remote start in my 40years of living so i am a little rusty.

Right now i'm locating all of the wires for the necessary connections.

I am looking for a pinout of the ECU that shows the TACH wire.

IS THE TACH WIRE EVEN NEEDED?

maximaham

iTrader: (1)

is this the correct section to post this question in?

Critical-Audio

I'm not sure if your posting in the correct location but I will answer any way.
Tach is the best way to make a reliable remote start.
Most Remote starts now offer voltage sense and timed starting.
at least with tach it will have an exact figure to know when the car as begun to idle.

See tach in bold towards the bottom.
included the other wiring to make it easier, good luck. Let me know if you need anything else.

1998 Nissan Maxima
Remote Start
Item Wire Color Polarity Wire Location

12 Volts white/red to white/purple (30A) + ignition harness

Starter black/yellow to black/white + ignition harness

Second Starter green/black to red/blue + ignition harness

Ignition black/white to black/red + ignition harness

Accessory red to red/yellow + ignition harness

Second Accessory blue to white/blue + ignition harness

Keysense yellow/blue + ignition key switch

Power Lock use factory alarm arm
Power Unlock use factory alarm disarm

Lock Motor brown/white 5 wire driver door at switch

Driver Unlock Motor brown 5 wire driver door at switch

Parking Lights (+) red/green or red/blue + steering column or BCM just below the radio

Headlight green/yellow (L), blue/black (R) + steering column

Left Front Door Trigger red/white - driver kick or BCM just below the radio

Right Front Door Trigger same as left front door trigger
Left Rear Door Trigger same as left front door trigger
Right Rear Door Trigger same as left front door trigger

Trunk/Hatch Pin purple/yellow - driver kick or BCM just below the radio

Hood Pin yellow/black - BCM just below the radio
Trunk/Hatch Release purple/yellow - high curr driver kick

Factory Alarm Arm lt. green/red (driver door key lock) - driver door at switch

Factory Alarm Disarm green/yellow (driver door key unlock) double - driver door at switch

Disarm No Unlock see factory alarm disarm

Tachometer white/green ac instrument cluster or ECM, 2nd row from top, 6th pin left of center
The ECM is located in the front of the center console on the transmission hump. The wiring is easily reached by removing the small black panel just to the front of the center console on the passenger side.

Clutch Pedal green/orange - clutch switch

Rear Defroster green/red - rear defogger switch or BCM just below the radio
Mirror Defroster same as rear defroster

Speed Sense pink/blue ac instrument cluster or ECM, 2nd row from top, 4th pin right of center
The ECM is located in the front of the center console on the transmission hump. The wiring is easily reached by removing the small black panel just to the front of the center console on the passenger side.

Brake Wire red/green + brake switch
Parking Brake yellow - parking brake switch
Horn Trigger green/white - steering column, air bag connector
Wipers lt. green/red - steering column