Turns the lights on/off
When the lights are on due to the door link switch, a light will not turn off even if its switch is pressed.

■Illuminated entry system
Vehicles without a smart key system
When the interior light switch is in the door position, the interior lights automatically turn on/off according to the engine switch position, whether the doors are locked/unlocked and whether the doors are open/closed.
Vehicles with a smart key system
When the interior light switch is in the door position, the interior lights and engine switch light automatically turn on/off according to engine switch mode, the presence of the electronic key, whether the doors are locked/unlocked and whether the doors are open/closed.
■Outer mirror illumination (if equipped) The illumination automatically turns on according to the presence of the electronic key (vehicles with a smart key system), or the doors are unlocked.
■To prevent battery discharge The following lights will turn off automatically after 20 minutes:
■Customization Settings (e.g. the time elapsed before lights turn off) can be changed.
Interior lightsToyota CH-R Service Manual > Power Door Lock Control System: Improper Operation
DESCRIPTION
In cases where doors locked (lock) by themselves even though a door lock operation
was not performed, possible causes include vehicle-side malfunction, environmental
malfunction, or operation by the customer (including other passengers in the vehicle).
By using the operation histo ...
Toyota CH-R Service Manual > Horn: Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT HORN RELAY ASSEMBLY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
...