Toyota RAV4 (XA40) 2013-2018 Service Manual: Headlight relay circuit
Description
When the light control switch, located on the headlight dimmer switch, is
turned to the head position, the
head relay illuminates the headlights.
Wiring diagram

Inspection procedure
- Perform active test by intelligent tester (headlight)
- Connect the intelligent tester (with can vim) to the
dlc3.
- Turn the ignition switch on and press the intelligent
tester main switch on.
- Select the item below in the active test and then
check the relay operation.

Ok:
headlight comes on

- Inspect fuse (head ll, head rl)
- Remove the head ll fuse and head rl fuse from the
engine room no. 2 Relay block.
- Measure the resistance of the fuses.
Standard resistance:
below 1

- Inspect headlight relay (marking: head)

- Remove the headlight relay from the engine room no. 2
Relay block.
- Measure the resistance of the relay.
Standard resistance 

- Inspect bulb (headlight bulb)

- Remove the headlight bulbs (low).
- Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead to terminal 1, then check that
the bulb illuminates.
Ok:
bulb illuminates.

- Check wire harness (main body ecu - battery)

- Disconnect the e15 main body ecu connector.
- Measure the voltage of the wire harness side connector.
Standard voltage 

- Check instrument panel junction block (main body ecu)

- Measure the voltage of the main body ecu.
Standard voltage 

Repair or replace harness and connector (head relay - headlight bulb and
body ground)
- Check wire harness (headlight dimmer switch - main body ecu)

- Disconnect the e17 main body ecu connector.
- Disconnect the e12 headlight dimmer switch connector.
- Measure the resistance of the wire harness side
connectors.
Standard resistance

- Inspect headlight dimmer switch

- Disconnect the e12 headlight dimmer switch.
- Measure the resistance of the switch.
Standard resistance 

Repair or replace harness and connector (headlight dimmer switch - body
ground)
Description
When the stop light switch is turned on, current flows to the stop lights to
illuminate them.
Wiring diagram
Inspection procedure
Inspect fuse (stop)
Remove the stop fus ...
Description
The main body ecu controls the daytime running light no. 2 Relay (marking:
drl no.2).
Wiring diagram
Inspection procedure
Inspect daytime running light relay (marking: drl no. ...
Other materials:
Contact/call history
settings
The contact can be transferred from a bluetooth® phone to the system.
The contact also can be added, edited and deleted.
The call history can be deleted and contact and favorites can be
changed.
Display the “phone/message settings” screen.
Select “contact/call history settings” ...
For safe driving
For safe driving, adjust the
seat and mirror to an appropriate
position before driving.
Correct driving posture
Adjust the angle of the seatback
so that you are sitting
straight up and so that you do
not have to lean forward to
steer.
Adjust the seat so that you
can depress the pedals full ...
Customize parameters
Hint:
The following items can be customized.
Notice:
When the customer requests a change in a function,
first make sure that the function can be customized.
Be sure to make a note of the current settings before
customizing.
When troubleshooting a function, first make sure that
the fu ...