bOTH DOOR LOCKS WONT CLOSE USING AUTO LOCK -BUT THEY WILL LOCK USING DOOR KEY.

ANY ADVICE WILL BE APPRECIATED

 

Will the power locks work with the interior door switch?

 

does it make a clicking noise as if its trying to unlock them but cant? if so, your doorlock actuators can be burning out or something inside the door snapped. if there is no noise then your door lock actuators are either broken, or theres loose wiring.

 

Thanks for the reply Ken

The both doors wont work with the interior switch,will only lock externally with door key

 

Sounds like your not getting power to the system, check the fuses then break out the meter and check for power as you trace the wiring. I have the 1989 diagram in the tech info thread at the top of the forum.

 

tHANKS ONCE MORE kEN-i WILL DO THAT ON THE WEEKEND

PEEM

 

I am having the same problem with my '89 Bronco II. I have figured out that both actuators are shot. Problem is that they are about $60 a piece brand new.

 

Thanks Kew

I was tols today that the relay switch for the locks is situated behind the front left headlight,is this true for 87/Broncos.Also do you know how many fuel filters there are on a fuel injected 2.9l?

 

Yes the relays are on the drivers side fender apron. Theres just one fuel filter, it's on the frame rail below the drivers seat.

 

Thanks Guru

I will work on this problem on the weekend

 

Does the power lock on the tailgate work with the interior door switch?

 

yes the power tailgate works from the interior door switch but the left and right doors dont

 

If this is a wiring problem-not 2 bad actuators like KawiG5- the problem is in one of the splices. The EVTM shows that each relay is wired to a splice & from the splice one wire goes to the left door, one to the right door & one to the rear hatch. If a splice is the problem you wont be able to lock OR unlock the front doors. One splice is behind drivers side headlamp, the other "driver side fender apron near relay takeoff." Try wiggling the splices while someone presses the door lock switch.

 

Many thanks Guru

Your advice was right on the button-it was a loose wire on the drivers side switch,it must have been dislodged when I changed the headlamp.
Thanks to all who responded to my post and I must add that this is a quality forum .

Thanks once again Guys-Peem

 

Good deal, glad to hear it's fixed. Like you said this really is a "quality forum", great bunch of guy's that give some XLNT advice and save folks a LOT of money when repairing their trucks.