Hi, I have a 1998 Grand Cherokee Laredo with power door locks. I just bought the Jeep and noticed that when I hit the switch to lock the doors, only the front doors lock, not the rear or hatch. Also, when I hit the unlock switch, the passenger front does not unlock, but all others unlock.
Can anyone help me with this? If you need more info, I will gladly provide it, just ask.
I've noticed my drivers door doesn't always lock, it's the ignition switch, because when I wiggle it, the lock starts to work again, but, thats only my drivers door. I can also remove my key in the run position, so I'm pretty sure it's worn out.
My ZJ has traction control, I call it my right foot.....
Ok, I've checked both front doors harnesses and cannot find any broken wires.
I also noticed two things.
1) At night, if I press the door lock switch, my head lights and instrument panel lights dim quite a bit. Is that normal?
2) I can lock and unlock the right front door by pressing the lock switch, but as I was messing with it to see why the back doors were not working I noticed that if I kept pressing the switch several times back and forth, the right front would get weaker and weaker till it just quit working altogether, until I let it sit a few minutes, then it would start working again, almost like something was over heating.
Do you door locks make any sound when you try to unlock them? Could be seized up actuators. If you can hear a sound like the lock is trying to open, the it will not be a wiring issue.
Have you taken a door panel off to watch it as you hit the switch to physically see if the is any movement?
I have not removed a door panel to look at the actuators. I just figured since they will unlock with the power switch, but not lock, then actuators must be good and it must be some other problem. Do you think the actuators could be bad only for the lock position?
Actually, I recently noticed that the back hatch will indeed make a noise when locking that sounds like it's trying to lock. So, maybe they can freeze up only in one position.
I'll try popping a door panel off this week.
Thank you for the suggestion, I never thought if it.
Ive been bealing with the fact that my drivers side door locks do not work and theres a bucket list of things ive replaced so in getting my dad to take a look at it when hes not busy cause its a bed wire or two somewhere.