Our power door locks drain the battery, I had to replace the door panel a year ago ond probably didn't get the wiring right. Now a year later we are having problems with the battery draining and suspect it is the door locks. What fuse do I need to remove to isolate the locks and what other accessories will I lose if I do that? My son has the car at school and I can't test things out.
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Most probable cause , ,,, when you open & close the door, the wires in the rubber boot (accordian like) harness in between the door hinges, get cut and will cause alot if issues, without burning a fuse !
Could be a shorted out or damaged power door lock module. I had a 1990 Oldsmobile Cutlass Calais that had corrosion on the contacts of the module that when cleaned worked fine. Before that, the power door locks would lock the doors inexplicably.
For the cruise, I would check the fuse first.
Also, parts are probably still available for your car since it was made 8 years ago, which falls under the 10 year limit.
The fans are relay controlled, likely problem. Most current demanding componants have relays because a switch circuit would burn out. All your issures are very possibly relay issues. Find the relay bank and chk yhem for overheating, burn out, or plain ole malfunction. Good Luck, -Ned-
any type of power/voltage change seems to trigger this issue
The most common symptom is power locks fail and only the driver window quits, however that is on the extended cab.
Steps to fix and it works every time.
take door panel off driver's door Disconnect the wiring attached to window and power lock control unit disconnect battery cables connect the negative to the positive cable(((NO BATTERY CONNECTED))) This will act to short residual voltage in the system
5 minutes later place the key in the ignition and turn to the run position connect the wiring to the window/lock controller connect the negative cable to the battery then the positive open drivers side door turn key to the off position((do not remove yet)) you should get a series of dings through speakers telling you the key is still in the ignition once it begins dinging pull the key out and you should hear the door lock solenoids trigger and the windows should work.
Three years and a very unhappy girlfriend who owns the truck. but she's happy now.
yes the best way is to remove the door panel and unplug the plug at the lock its on the inside of the door.but i think your problem is going to be at the drivers door jam you will most likely find chaffed wires possibly touching causing the drain and working on their own.hope this helps you.