Toyota RAV4 (XA40) 2013-2018 Service Manual: Hazard warning switch circuit
Description
When the hazard warning signal switch is turned on, the turn signal flasher relay (marking: flsh) in the main body ecu turns on to flash the hazard warning signal lights.
Wiring diagram
Inspection procedure
- Perform active test by intelligent tester
- 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: all hazard warning signal lights flash.
- Inspect fuse (haz)
- Remove the haz fuse from the engine room no. 1 Relay block.
- Measure the resistance of the fuse.
Standard resistance:
below 1
- Check wire harness (turn signal flasher relay - battery)
- Remove the turn signal flasher relay from the instrument panel junction block.
- Measure the voltage of the wire harness side connector.
Standard voltage
- Check operation of turn signal flasher relay (marking: flsh)
- Replace the turn signal flasher relay with a normally functioning one or a new one.
- Check that the appropriate turn signal light flashes.
- 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: all hazard warning signal lights flash.
Replace turn signal flasher relay
- Inspect hazard warning signal switch
- Remove the hazard warning signal switch.
- Measure the resistance of the switch.
Standard resistance
Repair or replace harness and connector (hazard warning signal switch - body ground)
Turn signal light circuit
Description
The turn signal flasher relay (marking: flsh) in the main body ecu turns on
when it receives signals
from the headlight dimmer switch integrated with the turn signal switch, causing
...
Back-up light circuit
Description
The park / neutral position switch turns on when the shift lever is moved
into the r position, causing the
back-up lights to illuminate.
Wiring diagram
Inspection procedure
I ...
Other materials:
Removal
Disconnect cable from negative battery terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Remove mass air flow meter
Disconnect the mass air flow meter connector.
...
Engine immobilizer system
The vehicle's keys have
built-in transponder chips
that prevent the engine from
starting if a key has not
been previously registered
in the vehicle's on-board
computer.
Never leave the keys inside
the vehicle when you leave
the vehicle.
This system is designed to
help prevent vehicle theft but
does ...
Freeze frame data
Freeze frame data
Hint:
Whenever a dtc is detected or the abs operates,
the skid control ecu stores the current vehicle
(sensor) state as freeze frame data.
The skid control ecu stores the number of times
(maximum: 31) the ignition switch has been turned
from off to on since the ...
