2008 f150 viper 5901

Hi can anyone help got a few question before i start my install on my remote start alarm. viper 5901 fitting to f150 2008 with Expresskit PKFM main harness H1 H1/9 (-)200mA Dome light supervision output got a Domelight Super BLACK/ BLUE (+) AT VEHICLE LIGHT SWITCH HARNESS will that work? H1/10 (-) remote start/ turbo timer activation Do i Need this for my remote start for the alarm? H1/12 (-) 500mA ground when armed output Do i need this for any thing? H2 Harness H2/10 (-) 200mA Status Output This say something about using to active a bypass module or power the key sense wire but my key sense is a (+)? remote start H3 H3/1 ignition 1 input/output is this right? IGNITION 1      DARK BLUE/GREEN(+)      IGNITION SWITCH HARNESS H3/2 (87) flex relay input (30A fused) Do i need this? H3/3 (+) accessory output is this right? ACCESSORY /HEATER BLOWER 1       BLACK/ GREEN (+)        IGNITION SWITCH HARNESS H3/4 (+) starter output (car side of the starter kill) H3/5 (+) starter intput (key side of the starter kill) is this right? STARTER        RED / LIGHT BLUE (+)      IGNITION SWITCH HARNESS H3/6 Ignition 1 input (30A fuse) do i need a relay to set up remote start? H3/7 (30) flex relay output do i need this? H3/8 (87a) flex relay input do i need this? H3/9 accessory/starter relay input (30A fuse) do i need this any help will be greatly received!

Welcome to The 12 Volt

H1/9  Probably don't need.  Do your interior lights come on with factory keyless unlock?

H1/10  don't need

H1/12  don't need

H2/10  Goes to PKFM  Brown wire (-) Ground When Running if inW2W mode.  Not needed in D2D.

H3/2  Maybe  See H3/7    If yes -  +12v constant

H3/3  correct

H3/4  If you want "Starter Kill" , cut RED / Light Blue and connect as per guide.  If no "Starter Kill",

          do not cut RED / Light Blue, connect H3/4 only.H3/5  Used with H3/4 for "starter Kill"

H3/6  Yes +12v Constant

H3/7  Goes to IGN2 Lt Blue/Pink ( present if truck has "rear only ABS")

H3/8  Not used

H3/9  Yes +12v constant

Soldering is fun!

thanks for the help! The interior lights does come on with factory keyless unlock so i can just leave that one? and just to check was i right with H3/1 ignition 1 input/output is this right? IGNITION 1      DARK BLUE/GREEN(+)      IGNITION SWITCH HARNESS? H3/6 Yes +12v Constant and H3/9 Yes +12v constant can they be joined straight to 12 VOLT CONSTANT LIGHT GREEN/ PURPLE (+)IGNITION SWITCH HARNESS? thanks again for your help going to start tomorrow.

Dome Light Supervision.  If unlocking the doors causes the lights to come on, then you can omit this connection.

ING1 is Dark Blue / Green and connects to H3/1.

+12v Constant Light Green / Purple - check your trucks ignition switch harness.  Usually, there are several of these power wires in the connector, so connect accordingly, spreading the load.

As always, verify all wires with a Digital Multi Meter.  ( The wire guides are not always correct. ) 

Soldering is fun!

Ok so i put the alarm in but no remote start every thing else is working the Xpresskit looks like it programed ok as it is flashing every second but when i hit the remote start takes a long time to do any thing then flashes the light 3 or four times is there any thing i need to do before it will work? any help would be great!

Assuming an Automatic Transmission, did you connect the Neutral Safety Switch and connect it to chassis ground?  NSS to "ON"?

Did you program the Viper to Auto Trans?  Menu 3, Menu Item 1 to Option 2.

Did you connect the Viper Tach wire?  If yes, did you program the Viper to Tach Mode?  Menu 3, Menu Item 2 to Option 4.  Did you preform the Tach Learn process?

Which light is flashing?  If it's the Vipers' LED, count the exact number of flashes.  That error code will tell you where the problem is.

Did you try a remote start with the key in the ignition, but not turned?

Soldering is fun!

Thanks for the tip it was the man auto thing! but still not auto starting my security light goes nuts so looks like my bypass unit isn't programed so i tried it with the key on the on position and the truck fired up! only thing is i tired to rest the unit by pulling out the d2d cable and holding the reset button down and plugging the d2d cable back in till the light goes out then release the button. but then the unit goes back too flashing every second is that normal? also tried to reprogram it and still nothing any ideas? Thanks for the help!

or might it be the jumper plugs in the back of the alarm which way should they be for a xpresskit D2D connection think they are horizontal?

Jumper horizontal is OK.

Ford bypass programming can be difficult.  You need two working, non-clone, keys.  Verify your PATS connections.  PKFM Pin 2 Green should go to Pin 3 WHITE/ Light Green for TX and PKFM Pin 7 Pink should go to Pin 4 Grey/Orange for RX.   I usually get the ignition from the Vipers H3/1 Pink wire.  A sure way to reset the PKFM is to just re-flash it with the PKFORD firmware.

Soldering is fun!

Well it ended up i had the jumpers vertical once i change that it fire up! but cut off after 20 sec or so so guess i need to do the tach learn process. Only thing that seem wrong now is i get a door alarm on my lc3 remote after the car is locked and armed. might have got the wrong trigger wire. but will have a closer look tomorrow. But thanks again for all you help you rally know your stuff couldn't have done it without all this helpful information!