Similar thing is going on with my 2000 SSEI ..CID says my rear left door is open, nothing is functioning in the back, locks windows, I replaced the left rear doors "actuator" with no result. If I open my doors after dark, the courtesey light stays on for 30 mins or so.. If I drive in the dark the interior lights stay on the entire time I'm driving. Computers are great

Open the door all the way and look for the wiring harness going into the door, if you split that wire loom open you will see a bunch of broken wires match them by color code then splice them back together. It's a tight place to work so take your time. I hope this helps. Take Care.

All - driver - passenger - front an back ? Look for broken wires inside the rubber boot from the body to the door ,driver side !

Power Windows Operation
Power Windows
The vehicle is equipped with power windows controlled by the door modules. The DDM receives a window switch request, over the SBI serial data, from either the passenger door module wired to the window switch pressed or from the driver door switch assembly. The DDM checks the Class 2 serial data to see if the status information is correct (i.e. ignition switch position) to permit window operation.
If the status information to permit window operation is correct, the DDM sends the command to the door module controlling the window to move the window as requested.
Windows Power and Ground
The windows are powered by discreet power and ground circuits. These circuits are in the same dedicated connector as the window motor drive circuits.

PWR/WDO 30 amp circuit breaker located in the rear fuse box ,DRVMDL fuse 10amp located in the same rear fuse box . This power the driver door module (computer )

The vehicle is equipped with power door locks. Each lock actuator is powered and controlled by the door module mounted in the individual door. The driver door module (DDM) is the master control for the door lock system but the rear integration module (RIM) contains the program that determines when the lock functions are permitted.
The exterior key cylinders are wired to either the DDM or the passenger door module (PDM), depending on the location of the key cylinder. The interior lock switches are wired to the driver door switch assembly (DDSA) and the PDM. The DDSA and the PDM send the lock switch requests to the DDM over the simple bus interface (SBI) serial data circuit. The DDM then sends the lock requests to the RIM over the Class 2 serial data circuits.
The door lock operation modes are controlled by the rear integration module (RIM). The RIM examines the requested function from the DDM, or the remote function actuator (RFA), as well as the transmission shift selector position and the ignition switch position information available over the Class 2 serial data circuits. The RIM determines if a locking function is permitted, and commands the DDM to perform the function permitted. The DDM then sends commands to the rest of the door modules via the SBI to implement the selected locking function.
All programmable modes of lock system operation are stored in the RIM. The RIM checks the lock function program selected against the lock requests, the transmission selection and ignition key switch condition to determine if the requested function is permitted. If the requested function is permitted, the RIM then commands the DDM to perform the lock function over the Class 2 serial data circuits. The DDM commands the individual door modules to perform the lock function over the SBI serial data circuit.


GOOD luck your going to need it !

probably the FOB, just because other functions work does not mean that the lock/unlock will work. This is the most used function and the one that goes first.

alarm controller has probably failed---maybe a battery in the remote!

I checked all the fuses and relays and all are in good shape???????
Did you check the correct one's ,that's the question ? And did you use a voltmeter or test light to check across the correct fuse's ? And how did you check the relay's ????? Videos on youtube on how to test a relay ! And using a wiring diagram or power flow diagram that shows all componets of the none working systems ., Plus you need to know how the thing's work . Data communication network is involved in the working of these thing's , Data messages from module to module !

The body control system consists of the following 3 modules:
• The Dash Integration Module (DIM)
• The Instrument Panel Module (IPM)
• The Rear Integration Module (RIM)
Rear Integration Module (RIM)
The various RIM inputs and outputs are described in the corresponding functional areas as indicated on the RIM electrical schematics.
The RIM functions include the following:
• Automatic level control
• CIGAR relay control
• Class 2 communication requiring RIM interaction
• Content theft deterrent
• Fuel door control
• Fuel level sensor input
• Heated seat control
• HVAC blower control
• LK/CYL relay control
• Park brake relay control
• Rear defog relay control
• Rear park assist chime control
• Retained accessory power (RAP) relay control
• Reverse relay control
• Transmission shift inhibit
• Trunk release relay control
• Various controls for the interior lamps

Just looking at fuse's and relay's isn't enough ! Hooking up a factory scan tool an checking for DTC'S - diagnostic trouble codes in all the vehicle control modules is always the first step . Which fuse boxes did you check ? Do you know there is a fuse box under the back seat ?
Fuse Block - Rear
Left rear of the passenger compartment, under the rear seat !
The vehicle is equipped with power door locks. Each lock actuator is powered and controlled by the door module mounted in the individual door, but the rear integration module (RIM), which is the master control for the door lock system, determines when the lock functions are permitted. The RIM receives and examines the requested lock function from the individual door modules, or from the remote function actuator (RFA) via the class 2 serial data circuit. The RIM also examines the transmission shift selector position and the ignition switch position information available over the Class 2 serial data circuits. If the RIM determines that a lock or unlock function is permitted, it sends a class 2 message back to the individual door modules commanding them to perform that Lock or Unlock function.
Your best bet , take it to the dealer !

The most common issue with strange acting or random function of a remote, IS THE BATTERY. Replace the battery in the remote before forcing anything or taking things apart. Good Luck!

Most likely you have left the windows on that side of the car open a bitand water has cased some corrsion on the connections. You need to replace the switch if removing and cleaning connection does not work.

The motor is shot. It works a little and overheats, replace the motor . Same thing the the lock acuators. The are trying but have lost the power to move the locks. May as well replace them while the door is apart.

Replace the drivers door window/lock control unit in the door.
I had the same exact issue and it is not a connection issue. I
never left the window open in the rain but the control unit did have some rust on it.

Hello,

You may have 2 issues going on at the same time.
1. The child lock safety latch is up, preventing you from opening the door from the inside.
2. The inside clip to the rod that opens the door from the out side could of come off from closing the door to hard. Or the lock itself is getting stuck.

Options:
Roll the window all the way down, and look through the window crack with a flash light and see if any of the rods are just hanging and not connected.
If there are you can try using a slim jim with the cut out part facing up and try to catch the latch and pull up this could open the door.

Or you can try to take off the door panel from the inside, however this is very difficult and should be done by a professional becuse you don't want to break any thing or cause more dammage.

Once the door panel is off you can then pull the inside door release rod and open the door.

One more thing you can try: Pull the inside handle and the out side handle at the same time while having some on pull or push on the door, it just might be stuck and need a little force to open!