92 taurus power door locks inop

[jjh1976]

hey all newbie here and need help please. 92 taurus 3.0 v6 checked all fuses and powerlocks are inop. every once in a while i can unlock only from pass front door but otherwise they are totally inop. haynes manual is no help as it says to see the dealer. please help thanks jason

[shorod]

Are you comfortable using a voltmeter? Seems like the next step will be to start checking for voltage at the switches and at the lock motors. That will at least give you (and us) a direction to head.

Does your car have power windows? Did you check the fuses in the engine compartment? Enter your car's information into the Autozone website, click on Repair Info, then Vehicle Repair Guides, Chassis Electrical, Wiring diagrams. Scroll down to the Body Wiring Diagram for your 1992.

-Rod

[MyTaurus8AChevy]

Yes volt meter info would be great. Also look in your owners manual and see what else is on the door locks fuse(s). See if those are OK or if they stopped working too. As shorod mentioned there are fuses in the engine compartment, check those too.

[jjh1976]

i have power windows i checked at the drivers switch 12 v
it seems like a bad graound as there is 12v on the ground side fuses under the hood are good

[MyTaurus8AChevy]

Does it have FACTORY keyless entry? If so then you have type B locks, which are operated by negatice voltage. If not then you have type C locks, which are reverse polarity door locks. The door locking system is operated by a (+) Positive voltage on one wire while at the same time another wire will need a (-) Negative or Ground. When the door locks are operated by the power door lock switch, this switch as it refers to in its name, reverses the polarity to the door lock motors which in turn lock and unlock the doors. Color codes should be PINK/YELLOW and PINK/GREEN in the kick panel.

[jjh1976]

first thanks all for the help after looking at the diagrams rod gave me the curcuit breaker powers the windows the maxi fuse under the hood powers the locks. the fuse was good with a test light but i double checked with my fluke meter and there was 4volts turns out the was a loose terminal that the fuse plugs in to again thanks mytaurus8achevy and rod the info was a big big help

[MyTaurus8AChevy]

Glad you got it all sorted jjh1976

BTW - be extra careful where you use a test light at. They can cause a LOT of damage in modern day cars. The fluke meter is a much safer choice

[jjh1976]

i found that out by applying voltage on an air ride computer and erased it.
thank god it was under warranty