2008 toyota highlander

I am installing a remote start /alarm, it a viper 5901. I have not installed a bypass yet. I try to start with the remote whie the key is in the ignition. The 5901 try's to start but the engin won't kick. Checked voltage at starter side of the wire at ignition and it does have 12 volts for a few seconds when it's trying to start. Any help would be appreciated. Thanks,2010 Tundra

Are you supplying ( isolated ) power to all of the vehicle ignition wires? There are 2 Ignition wires, 2 Starter wires and one Accessory wire. Done properly, this would use all of the Vipers H3 outputs and an additional external relay.Soldering is fun!

kreg357 wrote: Are you supplying ( isolated ) power to all of the vehicle ignition wires? There are 2 Ignition wires, 2 Starter wires and one Accessory wire. Done properly, this would use all of the Vipers H3 outputs and an additional external relay.

Thanks for the response and the tip. Which type of additional relay and would you please post the wiring diagram for it. Really appriciate it. Thank you.2010 Tundra

kreg357 wrote: Are you supplying ( isolated ) power to all of the vehicle ignition wires? There are 2 Ignition wires, 2 Starter wires and one Accessory wire. Done properly, this would use all of the Vipers H3 outputs and an additional external relay.

Looks like all I'm missing is the second starter wire, can I use the pink / white wire (H3/7) to connect to the starter side of the car? What wire to connect to the key side? Attached is the page from the installation book. Thank you for the help.2010 Tundra

Assuming non-PTS Highlander. H3/1 PINK (+) IGNITION 1 INPUT/OUTPUT        Black @ ignition switch H3/2 RED / WHITE (+) FUSED (30A) IGNITION 2 WHITE/ Black @ ignition switch H3/3 ORANGE (+) ACCESSORY OUTPUT Gray @ ignition switch H3/4 VIOLET (+) STARTER OUTPUT (CAR SIDE)Yellow @ ignition switch     cut wire H3/5 GREEN (+) STARTER INPUT (KEY SIDE)     Yellow @ ignition switch     cut wire H3/6 RED (+) FUSED (30A) IGNITION 1 INPUT   WHITE/ Black @ ignition switch H3/7 PINK/WHITE (+) IGNITION 2 / FLEX RELAY OUTPUT Light Blue @ ignition switch H3/8 PINK/BLACK (+) FLEX RELAY INPUT 87A not used H3/9 RED / BLACK (+) FUSED (30A) ACC/STARTER INPUT  WHITE/ Black @ ignition switch H3/10 NC (no connection) Extra 30/40 Amp SPDT relay for Starter2 Relay Pin 85 to Viper H2/13 Purple (-) 200mA STARTER OUTPUT Relay Pin 86 and 87 to Highlander WHITE/ Black @ ignition switch thru 20 Amp fuse Relay Pin 30 to Highlander Red @ ignition switch Relay Pin 87a not used - insulateSoldering is fun!

Kreg357, Thank you once again, one more question, the red wire at the ignition switch (starter 2) needs not to be cut, right? The pin 30 wire just needs to tapped into the red starter 2? I will be getting the pkall for the transponder bypass and once I make these connections I should be good to go, thanks to you. 2010 Tundra

Correct, no need to cut Starter2, just tap on the Relay Pin 30 output wire. Verify that the truck won't crank the starter & start with the key when the Viper alarm is set. Soldering is fun!

kreg357 wrote: Correct, no need to cut Starter2, just tap on the Relay Pin 30 output wire. Verify that the truck won't crank the starter & start with the key when the Viper alarm is set.

Great, thanks.2010 Tundra