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)
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 proced ...
Headlight (hi-beam) circuit
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:
Lubrication system
On-vehicle inspection
Check engine oil level
Warm up the engine, stop the engine and wait for 5
minutes.
Check that the engine oil level is between the l and
f marks of the oil dipstick.
If low, check for leakage and add oil up to the f
mark.
Notice:
Do not add engine oil a ...
Brake pedal load sensing switch
Description
The brake pedal load sensing switch is turned on when the brake pedal is
depressed with force exceeding
a predetermined level.
The skid control ecu detects if the brake pedal is depressed or not via this
circuit.
Wiring diagram
Inspection procedure
Notice:
When repla ...
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 ...
