How do you test an integration relay part#82641-2090 from a 2003 Toyota Corolla for power door locks that has been removed from the vehicle?

Look in the fuse block on the left side of the dash, check fuse marked D/L it powers the integration module (contains relays) which is mounted on the rear of the same fuse block. Can you hear a relay clicking on the other side?

If this happening with all the doors when it happens, I would suspect the lock relays are getting old and tired. Replace the power lock relay or relays.

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 !

Ah Yes..good reason.

Go to your fuse panel (under your dash). Remove the fuse marked "door". It may be named something else, perhaps "locks".

Once you find and remove the fuse, give it a try at speed. Hopefully the fuse only supplies door lock power and not your windows. More than likely this will render your door locks completely manual.

However, there was a recall on this vehicle for this problem.

NHTSA Campaign ID Number: 92V135000
Component: Structure: Door Assembly: Latches And Locks
Manufacturer: Toyota Motor Co., Ltd.
Year: 1989
Make: Toyota
Year of Recall: 1992
Type of Report: Vehicle
Potential Number of Units Affected: 554,910
Defect Summary:
The electronic control unit (ECU) for the power door lock system can fail, causing the contacts to "weld", and resulting in door lock solenoid damage, with failure of the door to lock or unlock, even under manual operation.
Consequence Summary:
If the door fails to open after ECU failure, vehicle occupants would have increased difficulty exiting the vehicle in an emergency.
Corrective Summary:
Install an additional sub-circuit relay control to prevent malfunction of original relays in the ECU.

So the thing to do is contact your local Toyota dealer and have the recall performed.

I hope this helps!

Best regards,

Manual window locking clip pops out from window handle shaft.

Power window rear door switch is held by four screws on onside of door panel. Remove panel to access.

Power window front door switch pops out of armrest.

The Electric LOCK SOLINOID is FAULTY and is STUCK on LOCK, This Requires the Door Pannel to be Removed to Access the Assmbly to Release the LOCK and then the LOCK Solinoid must be Replaced.

Dealer Item ` $200
Junk Yard ~ $100
https://toyotapartscenter.net/toyotasiennaparts.html?gclid=CPX5u8HUlZ4CFSn6agod6Ae1oQ sells them for $167.17 + shipping and tax
PH; 800-516-1455
I recommend a pull, light tap and reconnect, recheck B4 buying. Also, shop manual has proper test procedure, Pages BE16-17

All of the power locks and power windows are directly ties into the "Integration Relay". This is the large white box behind the fuse panel under the dash. There are 2 different Integration relays, one with electric windows, and one without them. You may need to change the integration relay, also.

first check blown or missing fuses 2nd locate locking module open it up and fire the neg side of the relays with a test light if the locks fire your master door motor is shot located in driver door if they dont fire check your module has power if so it may be faulty