93 silverado door locks

i have just installed a viper 5901 in my 93 silverado, and i cant get the doorlocks to work. it is a 3+ switch. i have talked to an installer at one of the local shops and he told me that i needed the 451m door lock module. i bought that module and it still does not work any sug. would be greatly appreciated thanks in advance

AUDIOVOX LISTS 2 door      Power Unlock          WHITE          (+)          POSITIVE TRIGGER                PowerLock          LIGHT BLUE          (+)          ABOVE GAS PEDEL AT FACTORY RELAYS extended cab      Power Unlock          BLACK          (REV)          OR BLK/RED REVERSE POLARITY                PowerLock          LIGHT BLUE          (REV)          DRIVER'S KICK PANEL OR LEFT DASH SPEAKER BULLDOG SECURITY POWER LOCK        LIGHT BLUE (TYPE C) See NOTE *1        IN EITHER DOOR BOOT        POWER UNLOCK       BLACK/ RED (TYPE C) See NOTE *1       IN EITHER DOOR BOOT NOTE *1 vehicles that are 2-Door are a TYPE C Door locking system and vehicles that are 4-Door are a TYPE A Door locking system. How do you have the locks wired up ?   is the truck a 2 door or extended cab ? i know on my fathers 96 Z71 extended cab i grabbed them in the drivers door boot and 5 wired themIf i Can't Install it    I Don't need it   Joe

my truck is a ext. cab, but only has 2 doors. i know what wires to use, and where they are, but i am not sure how to hook everything up. i have seen on this site that the polarity of the unlock wire has to be changed. i talked to a local installer and he told me to get the door lock relay module, but when i hook it up like he told me it blows a fuse in the wire. so i am not sure if it is changing the polarity in both wires. if that is the case how can i change the polarity in just 1 wire

i have never used that 451m but you will need to wire both the lock and unlock in a 5 wire configuration i usually do it this way If i Can't Install it    I Don't need it   Joe

use wiring diagram c in the 451m install guideIf i Can't Install it    I Don't need it   Joe

the first part that chev listed from audiovox. i generally catch them at the factory relay by the gas pedal

I just installed an alarm in one of those today. On the one I worked on it was lt.blue for lock and BLACK/ red for unlock at the drivers kick panel. I didnt use 451m lock module; instead i wired up two relays with 85 and 87 on both relays wired as constant +12v. I also fused this wire with a 10amp fuse too. 86 on both relays are wired to the alarms lock/unlock wires. 30 are going to be your motor side wires and 87a are you're switch side. If you have these wires mixed up, the 10 amp fuse will blow. If you have them correct the locks should function normally.

hey guys i appriciate all the help. i have got it working now. thank god. that was the first time i have had to change the polarity again thank you guys for the help. dan