Toyota RAV4 (XA40) 2013-2018 Service Manual: Drl relay circuit
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. 2, Drl no. 3,
Drl no. 4)

- Remove the no. 2 Relay, no. 3 Relay and no. 4 Relay from
the engine room no. 2 Relay block.
- Measure the resistance of the relays.
Standard resistance:
No. 2, No. 4 
No. 3 
- Inspect fuse (head lh)
- Remove the head lh fuse from the engine room no. 2
Relay block.
- Measure the resistance of the fuse.
Standard resistance:
below 1 

- Inspect headlight bulb (high)

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

- Check wire harness (battery - no. 2 Daytime running light relay)

- Remove the no. 2 Daytime running light relay from the
engine room no. 2 Relay block.
- Measure the voltage of the relay block.
Standard voltage 

- Check wire harness (no. 2 Daytime running light relay - headlight
bulb and body ground)

- Remove the no. 2 Daytime running light relay from the
engine room no. 2 Relay block.
- Disconnect the a14 and a22 headlight (high)
connectors.
- Measure the resistance of the wire harness side
connectors and relay block.
Standard resistance 

- Check wire harness (main body ecu - battery)

- Disconnect the e16 main body ecu connector.
- Measure the voltage of the wire harness side connector.
Standard voltage 

Replace instrument panel junction block (main body ecu)
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 proced ...
Description
The body ecu controls the headlight relay, no. 2 Daytime running light relay
(marking: drl no. 2) And
no. 4 Daytime running light relay (marking: drl no. 4).
Wiring diagram
I ...
Other materials:
Abs warning light does not come on
Wiring diagram
Refer to the abs warning light circuit (see page bc-135).
Inspection procedure
Check can communication system
Check if the can communication system dtc is output
(see page ca-34).
Result
Perform active test by intelligent tester (abs warning light)
Sele ...
High pitched horn
Components
Removal
Remove radiator support opening cover
(see page et-4)
Remove front fender liner lh (see page et-4)
Remove front fender liner rh (see page et-4)
Remove front bumper cover (see page et-5)
Remove high pitched horn
Disconnect the horn connector.
Remove t ...
Maintenance 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 ...