viper 791XV crank but won't start

Hey guys, need your help. I installed a viper 791 XV in my 02 F150 and everything works and it will crank but it won't start. Does anyone know why that might be? I used the following diagrams

12V|yellow & lt. grn/pur|+ |ignition harness |

| STARTER|RED / lt. blue |+ |ignition harness || IGNITION|dk. blue/lt. green |+ |ignition harness || SECOND IGNITION|gray / YELLOW |+ |ignition harness || THIRD IGNITION|lt. blue/pink *1 |+ |ignition harness || ACCESSORY|RED / black |+ |ignition harness || SECOND ACCESSORY|BLACK/ green |+ |ignition harness || POWER LOCK|pink / YELLOW |*2 |passenger kick panel || POWER UNLOCK|pink/green *8 |*2 |passenger kick panel || PARKING LIGHTS +|brown | |light switch *3 || PARKING LIGHTS -|lt. GREEN/ YELLOW | |light switch *4 || HEADLIGHTS|RED / yellow |+ |light switch || DOOR TRIGGER|blk/yel & blk/pnk |- |*5 || DOME SUPERVISION|BLACK/ lt.blue |+ |passenger kick panel || FCTRY ALARM ARM|*6 | | ||FCTRY ALRM DISARM|dark GREEN/ purple |- |drivers kick panel || TACHOMETER|*7 | | || BRAKE WIRE|light green |+ |at switch *3 || HORN TRIGGER|dk. blue |- |steering column || WIPERS| | | || LF WINDOW UP/DN|org/wht - wht/blk |A |in drivers door || RF WINDOW UP/DN|wht/yel - tan/lt.blu|A |drivers kick panel || LR WINDOW UP/DN| | | || RR WINDOW UP/DN| | | |

the other diagram is:

Security

Battery          YELLOW +              (+)           IGNITION SWITCH HARNESS

Ignition         DRK.BLUE/LT.G             (+)           AND BLU/GRN AT IGN SWITCH HARNESS

Starter01      RED / LT.BLUE +              (+)           IGNITION SWITCH HARNESS

AllDoorTrigger           DRK.GRN/ORNGE         (-)            AT GEM MODULE PIN 9 OF 26 PIN CONN.

FrontLeftDoorTrigger        BLACK / YELLOW            -      AT GEM MODULE PIN 8 OF 26 PIN CONN.

FrontRightDoorTrigger      BLACK/ PINK                   -      AT GEM MODULE PIN 7 OF 26 PIN CONN.

RearLeftDoorTrigger         BLACK/ PINK                   -

RearRightDoorTrigger       BLACK/ PINK                   -      AT GEM MODULE PIN 7 OF 26 PIN CONN.

TrunkTrigger             N/A

HoodTrigger              N/A

FactoryAlarmDisarm         DK.GREEN/ VIOL                   DRIVER'S KICK PANEL

ParkingLights            BROWN +               (+)            AT HEAD LIGHT SWITCH

Remote Start

Battery          YELLOW +              (+)           IGNITION SWITCH HARNESS

Ignition         DRK.BLUE/LT.G             (+)           AND BLU/GRN AT IGN SWITCH HARNESS

Ignition02                  GRAY / YELLOW +           (+)           IGNITION SWITCH HARNESS

Ignition03                  RED / BLACK +                        IGNITION SWITCH HARNESS

Accessory01             BLACK/ LT.GREE            (+)           IGNITION SWITCH HARNESS

Accessory02                    +

Starter01      RED / LT.BLUE +              (+)           IGNITION SWITCH HARNESS

AntiTheftType            UNDER DASH PAD

AntiTheftSystem        PATS

KeySense                  BLACK/ PINK -                 (-)            STEERING COLUMN HARNESS

NeutralSafety            RED / LT.BLUE +              (+)           IGNITION SWITCH

Tach             LT.GREEN/ WHIT            (-)            AT PCM PIN 26 OF 104 CONN.

CrankShaftSensor             GRAY                      +             PIN 26 OF 104 CONN. AT PCM

CamShaftSensor       DARK GREEN                +             PIN 22 OF 104 CONN. AT PCM

SpeedSense             GRAY/BLACK AC           (AC)        PIN 68 OR 58 AT PCM 
ParkingLights            BROWN +               (+)            AT HEAD LIGHT SWITCH

BrakeLights               LT.GREEN +                   (+)           AT BRAKE SWITCH

ReverseLights           BLACK/ PINK +                (+)           AT HARNESS TO REAR OR AT SEC. MODULE

Horn             DARK/BLUE -            STEERING COLUMN     

Doorlocks / Window

PowerUnLock            PINK/GREEN                  (-)            DRV KICK PANEL (REV POL ON BASE MODEL)

PowerLock                PINK / YELLOW                (-)            DRV KICK PANEL (REV POL ON BASE MODEL)

DriverDoorMotor01           RED / ORANGE                (+)           DRIVERS DOOR BOOT

DriverDoorMotor02           PINK/BLACK                   (+)           DRIVERS DOOR BOOT

PassengerDoorMotor01    PINK/ORANGE                      KEYLESS MODULE

LeftFrontWindow01           WHITE/ YELLOW             +

LeftFrontWindow02           WHITE/ BLACK                +             AT MASTER SWITCH

Does anyone know why the accesory wire in the first diagram is RED / Black and on the second diagram this wire is the ignition 3. I hooked up my accesory wire to the BLACK/ light Green wire like it said in the second diagram. Also, I believe I tapped into the right tach wire because the LED did lit up when learning the code.grc

Did you use a bypass module for the pats system?  Is the theft light in the gauge cluster flashing rapidly when you try remote starting the truck?  If it is then there's something wrong with oyur bypass module.Cause I'm So white and nerdy...

First Class Certi-fried installer

put the key IN the ignition cylinder, dont turn it. THEN hit the remote start......what happens then?

The RED / BLACK is an ACC wire. Just make sure you attach all the IGN & ACC wires otherwise the Ford's will not crank. As stated above make sure you test to make sure that your bypass module is infact working properly too.Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

Hey guys sorry for not getting back in to the forum as quick as you guys did.  No I did not add a bypass module for the PATS system so I did as you guys told me with the key in the ignition and guess what? It started !  I will buy the bypass moudule but the question is where? do I need to buy a DEI product or can it be another aftermarket module.?  Also, will I have to hook it underneath the steering column? if so, where is the air bag sensor so I don't accidentally trip it. grc

cantur77 wrote: Hey guys sorry for not getting back in to the forum as quick as you guys did.  No I did not add a bypass module for the PATS system so I did as you guys told me with the key in the ignition and guess what? It started !  I will buy the bypass moudule but the question is where? do I need to buy a DEI product or can it be another aftermarket module.?  Also, will I have to hook it underneath the steering column? if so, where is the air bag sensor so I don't accidentally trip it.

You can get pretty much any brand bypass. Just make sure it's for your truck.  As for where to get one.  If you want to get it locally any car audio shop, or best butt I mean buy will have it.  Or you could buy online.  Online will more than likely be cheaper, but you'll have to wait from it.  It does hook up under the steering column.  I wouldn't worry about tripping the airbag, just don't cut into any wires in yellow loom or with yellow tape on them.

Cause I'm So white and nerdy...

First Class Certi-fried installer

Thanks a bunch for your help man, you are a life saver.  Thanks also for the tip on BB and the humor with it.  I'll try to get it from there over the weekend and install it right away.  I really hate to have to go out to the driveway in the mornings to start the truck for warm up and having to leave it unlocked and unattended while I finish getting ready.grc