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Answer bad ground on chassis. do the lights seem dim when you apply the brakes?
If I understand your question correctly, your vehicle may have a separate relay for each function. The relay for locking the doors by using the switch has gone bad.
The 2005 Dodge Caravans have software problem in the BCM that causes the power locks to quit working. The only fix is to bring the van to a dealer for a software flash update.… I disconnected the battery cable and pulled the BCM fuse and the system reset and the door locks are working fine again. I also got my power door locks working. I pulled and reinstalled (but did not replace) all fuses and fuse blocks (but not the relays). The locks started working after that. I'm not sure if I'm using this site correctly as I'm new, but I found that disconnecting and reconnecting the lamp and horn relays fixed my same issue with the locks. Several people suggested resetting the fuses under the hood, and it worked. Others tried unplugging and plugging back in the battery and that also worked for them. I tried the suggestions and it worked for a short time, but now the locks are not working again. Funny thing is that the rear hatch locks still work, but all passenger and driver locks do not. Time to take it in and have a pro fix them? Resetting the fuses and relays doesn't help anymore.
there is no mechanical shut off switch if the fuel is shut down the computer can do it but you need a scan tool to fix that
It is on the driver's door.
Unplug Battery for 10 minutes. BCM issue. Not sure on original cause. It is normally due to a software bug in the bcm. The dealer can flash New software into the… bcm to correct the problem.
Make sure the shifter handle is fully engaged in park. On my '92 caravan, I have to push the shifter up and forward again after putting it in park, to make sure it's ful…ly in park. My ignition switch won't turn off all the way or door locks work until I do that. Also, you might have a loose shifter mechanism...jiggle it while turning the ignition switch at the same time.
undo the 3 Philips screws in the holes under the steering column. separate the 2 halfs of the column cover buy pressing on the seam. remove the cover. there are 2 screws that …hold the switch in... one above and one below and 1 harness connector. remove the screws and disconnect the connector. that is it.
My first suggestion is to have the Body Computer (BCM) checked for codes. Chrysler has released a software update for the bcm that the dealer can perform that fixes a lot of l…ock complaints on 2005 vans.
I had the same problem couldn't unlock even using a pliers. simple repair open door panel follow locking rod to electric motor and remove it open it up and remove t…he shaft and gear notice the spring ends are bent up simply bend them back down so they catch the stop 1 on each side. reassemble. if yours is making a funny noise when locking and unlocking then the gear has stripped and you need to buy a new motor from dealer bring old one with you to show them the new motor was redisigned and appears different. did mine over three months ago and it works fine. good luck
Is there a second fuse box in a 2005 dodge grand caravan my remote and switch on the doors do not work i have checked the fuses under the hood the rear hatch locks ok?
There is a factory service bulletin about your problem. The software in the body computer needs flash updated. That is only available at the dealer.
Those vans have an issue with a software error in the body computer causing the locks to become inoperative. Your dealer should be able to update(flash) the bcm to repair the …issue We have the same problem. The quick (FREE) fix is to pull the IOD fuse and count to 5 and put the fuse back in. This resets the power lock "computer". The IOD fuse is a 20 Amp Yellow fuse in front of the fuse box, closest to the drivers headlight. We have to do this every 6-8 weeks.
Why does electric door lock on 2003 Grand Caravan start make a screeching or buzzing noise when you lock or unlock car?
The door lock actuator is going bad.
Break a window or call a locksmith
If you mean while driving, it's a normal safety feature that the power door locks engage when the vehicle exceeds 30 Km/h or 20 Mi/h. If you mean that there seems to be a malf…unction causing the door locks to constantly engage when they aren't supposed to, then the likeliest culprit is a faulty switch in one of the doors, or possibly a short in the wiring to the switch. The common places to find wiring problems would be either at the door jamb where the wires get flexed repeatedly, or near the switch.
In Fuel Filters
Dodge does not use inertia/reset switches
How do you stop the doors from locking automatically in Mitsubishi Outlander 2005 when the ignition is switched on It also unlocks the doors when the transmission is placed into P?
Locate and remove the relays involved.