The power back door unit assembly (power back door ECU) receives the power back door ON/OFF switch signal to sound the power back door warning buzzer.

The door control switch only turns on while the switch is being pressed, and turns off when the switch is released.

When the switch is on, a power back door operation request signal is input to the main body ECU (cowl side junction block LH) to operate the back door.

The back door lock motor is built into the back door lock assembly. The power back door unit assembly (power back door ECU) controls the back door lock motor to open/close the back door. This power back door unit assembly (power back door ECU) applies current to terminals 2 and 1 to operate the motor to close the door. It reverses the direction of the current to operate the motor to open the door.

The power back door unit assembly (power back door ECU) inputs signals from the latch switch, closer position switch and back door courtesy switch, which are built into the back door lock assembly. Based on these switch signals, the latch position of the back door lock assembly is determined.

When a voltage and current malfunction (open or short) is detected in the clutch circuit of the power back door unit assembly (power back door ECU) while the power back door is operating, the power back door unit assembly (power back door ECU) outputs DTC B2225.

The power back door unit assembly (power back door ECU) inputs signals from the latch switch, closer position switch and back door courtesy switch, which are built into the back door lock assembly. Based on these switch signals, the latch position of the back door lock assembly is determined.

Clear the DTCs ().

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 DOOR / HATCH

Connect the intelligent tester to the DLC3.

Connect the intelligent tester to the DLC3.