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 switchOn-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
CAUTION:
Be sure to follow the correct removal and installation procedures of the front
airbag sensor.
PROCEDURE
1. INSPECT FRONT AIRBAG SENSOR (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic s ...
Tachometer Malfunction
DESCRIPTION
In this circuit, the meter CPU receives engine speed signals from the ECM using
the CAN communication system (CAN No. 1 Bus). The meter CPU displays the engine
speed calculated based on the data received from the ECM.
WIRING DIAGRAM
PROCED ...
Random Access Memory (RAM) (P0604)
MONITOR DESCRIPTION
The ECM continuously monitors its internal memory status. This self-check ensures
that the ECM is functioning properly. It is diagnosed by internal "mirroring" of
the main CPU and sub CPU to detect Random Access Memory (RAM) ...