Toyota CH-R Service Manual: System Description

Multiplex network master switch assembly

Driver door control switch on the multiplex network master switch assembly locks or unlocks all doors.

Door control switch assembly

Located on the front passenger door and locks or unlocks all doors.

Door courtesy light switch assembly

Front door lock with motor assembly LH

Front door lock with motor assembly RH

Rear door lock with motor assembly LH/RH

Airbag Sensor Assembly*1

Sends the front passenger seat belt buckle switch signal to the main body ECU (multiplex network body ECU) via CAN communication.

Back door lock assembly

Built-in motor locks or unlocks the door.

Manual lock and unlock function

This function can lock or unlock all of the doors by the door control switch operation.

Key-linked lock and unlock function

This function, which is linked with the mechanical key cylinder, can lock or unlock all of the doors when a lock or unlock operation is performed.

Manual unlock prohibition function

When the condition below is met, unlocking the vehicle using the door control switch will be prohibited:

Key lock-in prevention function

When the key is in the vehicle, performing the door lock operation will not lock the door.*1

When the key is inserted into the ignition key cylinder, performing the door lock operation will not lock the door.*2

Key-linked 2-step unlock function

Unlocks only the driver door by turning the key cylinder once and unlocks all of the doors by turning it twice.

Double locking function*3

NOTICE:

Never activate the double locking function when there are people in the vehicle because the doors cannot be opened from the inside. If the doors are locked by accident, unlock the door by using the wireless unlock operation or entry unlock operation.