Your Toyota is equipped with the illuminated entry system to assist in entering the vehicle. Due to the function of the system, the lights shown in the following illustration automatically turn on/off according to the presence of the electronic key (vehicles with smart key system), whether the doors are locked/unlocked, whether the doors are opened/closed, and the “ENGINE START STOP” switch mode (vehicles with smart key system) or engine switch position (vehicles without smart key system).

1. Personal/interior lights
2. “ENGINE START STOP” switch light (vehicles with smart key system) or engine switch
light (vehicles without smart key system)
3. Door courtesy lights
4. Luggage compartment light
5. Outer foot lights
Personal/interior light main switchDtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Navigation System / Trouble
Codes.
(e) Check for DTCs (See page ).
...
Inspection
INSPECTION
PROCEDURE
1. INSPECT DRIVE MONITOR SWITCH
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
3 (E) - ...
Rear Height Control Sensor (B241A)
DESCRIPTION
The headlight leveling ECU assembly receives signals indicating the height of
the vehicle from the rear height control sensor sub-assembly RH.
DTC No.
DTC Detecting Condition
Trouble Area
B241A
...