Description
The main body ecu receives information regarding the door lock position switch and ignition switch, and turns on each foot light.
Wiring diagram

Inspection procedure

Ok: light comes on.

Standard resistance:
below 1 

Ok: light comes on.


Standard voltage 

Replace instrument panel junction block (main body ecu)
Door lock position circuit
Illumination circuitMaintenance requirements
To ensure safe and economical driving, day-to-day care and regular
maintenance are essential. It is the owner’s responsibility to
perform regular checks. Toyota recommends the following maintenance:
General maintenance
General maintenance should be performed on a daily basis. This can
be done ...
Taillight relay circuit
Description
When the light control switch, located on the headlight dimmer switch, is
turned to the tail position, the
taillight relay (marking: t-lp) turns on to illuminate the front side marker
lights, rear taillights, side marker
lights and license plate light.
Wiring diagram
Ins ...
Multiplex communication circuit
Description
The air conditioning amplifier communicates data with the ecm and combination
meter through the can
communication system.
Wiring diagram
Inspection procedure
Check dtc
Clear the dtc (see page ac-127).
Read the dtc (see page ac-127).
Result
Go to can ...