1994 Lexus LS400 4806V remote start troubles

Hey guys, I have a 1994 model LS that I've been trying to install this Viper 4806V keyless entry and remote start system on for the past 5 days! I've gotten everything figured out and wired up except for the remote start wires. I've followed another forum on a guy who installed a security system on his 1990 LS and he seemed to have no problems with the remote start. The car will only remote start correctly if the key is in the ignition and turned the to the ON position. It will not start correctly in any other position. If I attempt to start the car with the ignition in the OFF or accessory position the car will only attempt to start and crank three times accepting failure. I even disconnected the accessory, ignition 1, and ignition 2 wires on the remote starter side and the car was still able to start when the key was in the ON position. I did not think this car used a chip sensing ignition that only allows it to only start with the key but I may be wrong! I can't seem to figure it out so I'm asking for help from the forum before I wave the white flag and take it to Best Buy and have them figure it out for an outrageous $200.

[UPDATE] I hooked the acc, ignition 1, and ignition 2 wires to the corresponding wires on the vehicle from the remote start and the vehicle starts but the remote starter continues to spin the starter indefinitely.

Did you hook up and learn tach ?If i Can't Install it    I Don't need it   Joe

Could you list your wire connections from the Viper to what wire on the car. Color and location.When all else fails, Read the Instructions

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Definitely tach OR incorrect IGN wire, a 94 Lex was too early for an OEM immobiliser. List your connections, 2 ignitions and possibly 2 starter wires.

Alright here are all the wires and the connections. MAIN HARNESS: H/1:Red 12VDC Constant Input - WHITE/ Blue Constant H/2:Black Chassis Ground - Ground to Chassis H/3:Brown (-)200mA Horn Honk Output - GREEN/ Red Horn Wire H/4:WHITE/ Brown Light Flash Iso wire - N/A H/5:White Pin 30 of Light Flash Relay - Green w/Silver Park Lights H/6:Orange Grd when armed output - N/A REMOTE START HARNESS: 1:RED / Black 12VDC Constant Input - WHITE/ Blue Constant 2:Pink/Black Flex Relay Input - N/A 3:Pink/White Ign 2 - BLACK / YELLOW Ign 2 4:Red 12VDC Constant Input for Ign 1 Relay - WHITE/ Blue Constant 5:Violet Starter Output - Red w/Silver Starter Wire 6:Orange ACC Output - Pink/Blue ACC Wire 7:RED / White 12VDC Constant Input for Ign 2 - WHITE/ Blue Constant 8:Pink Ign 1 Input/Output - BLACK/ Orange Ign 1 AUX/SHUTDOWN HARNESS: 3:RED / White (-)200ma Trunk Release Output - Blue Trunk Switch Wire 4:BLACK / YELLOW (-)Dome Light Output - RED / White Door Trigger Wire 12:Violet/White Tachometer Wire - Black Wire @ Instrument Cluster 13:BLACK/ White (-)Neutral Safety - Chassis Ground 20:Brown Brake Shutdown Input - GREEN / WHITE Brake Switch Wire DOOR LOCK: 1:Blue 500mA (-)Unlock Output - Green,GREEN/ Black wire @ Blue Connector 2: Empty 3:Green 500mA (-)Lock Output - GREEN/ YELLOW Wire @ Blue Connector I did not post all the wires but I did post all the wires that I connected.

Yes, I did learn the tach signal. The antenna led glowed solid blue to show that it was successfully learned.

This is the tutorial I followed. 1990 Ls400 Remote Start/Alarm Installation!!

ls400club wrote: This is the tutorial I followed. 1990 Ls400 Remote Start/Alarm Installation!!

This was incorrect. It's actually this link. 1990 Ls400 Remote Start/Alarm Installation!

I would try a different source for the TACH signal. http://www.commandocaralarms.com/wiring/1990-1994/lexus/ls400/1294.html http://www.bulldogsecurity.com/bdnew/vehiclewiringdiagrams.aspx Your wire connections at the ignition switch look to be correct, Did you verify the function of those wires with a DMM? Are your connections soldered or just T-Taps? Didn't see a hood pin shutdown on your list. Very Important safety feature. When all else fails, Read the Instructions

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