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)
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
...
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 ...
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Before driving
Observe the following
before starting off in the
vehicle to ensure safety of
driving.
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specifically for vehicles of the
same model and model year as
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(clips) into ...
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Components (2006/01- )
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Open in occupant classification ecu battery positive line
Description
Dtc b1794 is set when a malfunction is detected in the occupant
classification ecu battery positive line.
Wiring diagram
Inspection procedure
Check for dtc
Turn the ignition switch on.
Clear the dtcs (see page rs-249).
Hint:
First clear dtcs stored in the ...