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:
Reassembly
Caution:
Wear protective gloves. Sharp areas on the seat frame
(with adjuster) may injure your hands.
Install front seat wire
Install seat position airbag sensor (see
page rs-390)
Install lumbar support adjuster assembly
Install the lumbar support adjuster with the 2
screws.
...
Automatic transaxle fluid
On-vehicle inspection
Check transaxle fluid level
Hint:
Drive the vehicle so that the engine and transaxle are at
normal operating temperature.
Fluid temperature:
70 to 80°c (158 to 176°f)
Park the vehicle on a level surface and set the
parking brake.
With the engine idling and ...
Reassembly
Install generator rotor assembly
Install the washer onto the generator rectifier end
frame.
Install the generator rotor onto the generator
rectifier end frame.
Using a 32 mm socket wrench and press, slowly
push the generator drive end frame onto the
generator ...